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    GPy with Hologram.io SIM

    Scheduled Pinned Locked Moved GPy
    hologram.io
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    • T Offline
      tlanier
      last edited by tlanier

      Should the Pycom GPy using a Hologram SIM card work today with LTE CAT-M1 in the US (Georgia)?

      I’m trying to run the example app (updated on 4/16/18) listed below and the program never gets past the “attach to cell network” stage.

      import pycom
      import socket
      import ssl
      import sys
      import time
      from network import LTE
      
      BLACK = 0x000000
      WHITE = 0xFFFFFF
      RED = 0xFF0000
      GREEN = 0x00FF00
      BLUE = 0x0000FF
      YELLOW = 0xFFFF00
      
      # send AT command to modem and return response as list
      def at(cmd):
          print("modem command: {}".format(cmd))
          r = lte.send_at_cmd(cmd).split('\r\n')
          r = list(filter(None, r))
          print("response={}".format(r))
          return r
      
      def blink(rgb, n):
          for i in range(n):
              pycom.rgbled(rgb)
              time.sleep(0.25)
              pycom.rgbled(BLACK)
              time.sleep(0.1)
      
      #####################################################################
      print("CAT M1 Test - V0.4 - 4/15/18")
      
      print("disable MicroPython control of LED")
      pycom.heartbeat(False)
      pycom.rgbled(WHITE)
      
      print("instantiate LTE object")
      lte = LTE(carrier="verizon")
      print("delay 4 secs")
      time.sleep(4.0)
      
      if lte.isattached():
          print("LTE was already attached, disconnecting...")
          lte.disconnect()
          lte.detach()
          print("resetting modem...")
          lte.reset()
          print("delay 5 secs")
          time.sleep(5.0)
      
      # enable network registration and location information, unsolicited result code
      at('AT+CEREG=2')
      
      print("full functionality level")
      at('AT+CFUN=1')
      time.sleep(1.0)
      
      # using Hologram SIM
      at('AT+CGDCONT=1,"IP","hologram"')
      
      print("attempt to attach cell modem to base station...")
      # lte.attach()  # do not use attach with custom init for Hologram SIM
      
      i = 0
      while True:
          # get EPS Network Registration Status:
          # +CEREG: <stat>[,[<tac>],[<ci>],[<AcT>]]
          # <tac> values:
          # 0 - not registered
          # 1 - registered, home network
          # 2 - not registered, but searching...
          # 3 - registration denied
          # 4 - unknown (out of E-UTRAN coverage)
          # 5 - registered, roaming
          r = at('AT+CEREG?')
          r0 = r[0]  # +CREG: 2,<tac>
          r0x = r0.split(',')     # ['+CREG: 2',<tac>]
          tac = int(r0x[1])       # 0..5
          print("tac={}".format(tac))
      
          if lte.isattached():
              print("Modem attached (isattached() function worked)!!!")
              break
      
          if (tac==1) or (tac==5):
              print("Modem attached!!!")
              break
      
          i = i + 1
          print("not attached: {} secs".format(i))
      
          if (tac != 0):
              blink(BLUE, tac)
          else:
              blink(RED, 1)
      
          time.sleep(1)
      
      print("connect: start a data session and obtain an IP address")
      lte.connect()
      i = 0
      while not lte.isconnected():
          i = i + 1
          print("not connected: {}".format(i))
          blink(GREEN, 1)
          time.sleep(1.0)
      
      pycom.rgbled(BLUE)
      
      s = socket.socket()
      s = ssl.wrap_socket(s)
      s.connect(socket.getaddrinfo('www.google.com', 443)[0][-1])
      s.send(b"GET / HTTP/1.0\r\n\r\n")
      print(s.recv(4096))
      s.close()
      
      lte.disconnect()
      lte.dettach()
      
      # end of test, Red LED
      print("end of test")
      
      while True:
          blink(YELLOW,1)
          time.sleep(1.0)
      
      J 1 Reply Last reply Reply Quote 0
      • J Offline
        jmarcelino @tlanier
        last edited by

        @tlanier
        I know everything is working with Verizon Cat M1 SIMs but not sure about Hologram.

        Maybe @benstr can test, the stack has had lots of updates since he last posted.

        1 Reply Last reply Reply Quote 0
        • J Offline
          jmarcelino
          last edited by

          As a first step maybe try:

          lte.send_at_cmd('AT+CGDCONT=1,"IP","hologram"') 
          
          lte.attach()        
          
          

          to set the APN correctly

          T 1 Reply Last reply Reply Quote 0
          • T Offline
            tlanier @jmarcelino
            last edited by

            @jmarcelino

            I've modified the program as recommended; still does not attach to the tower.

            Hologram technical support has verified that the SIM should work with the GPy and CAT-M1 connecting to both Verizon and AT&T.

            Any ideas of what I can do to troubleshoot further?

            import pycom
            import socket
            import ssl
            import time
            from network import LTE
            
            def send_at_cmd_pretty(cmd):
                response = lte.send_at_cmd(cmd).split('\r\n')
                for line in response:
                    print(line)
                    
            print("CAT M1 Test - V0.1")
            
            pycom.heartbeat(False)
            
            lte = LTE()         # instantiate the LTE object
            
            send_at_cmd_pretty('AT+CGDCONT=1,"IP","hologram"')
            
            lte.attach()        # attach the cellular modem to a base station
            i = 0
            while not lte.isattached():
                i = i + 1
                print("not attached: {}".format(i))
                
                if (i % 2 == 0):
                    pycom.rgbled(0xFF0000)  # Red
                else:
                    pycom.rgbled(0x000000)  # off
                    
                time.sleep(0.25)
            
            lte.connect()       # start a data session and obtain an IP address
            i = 0
            while not lte.isconnected():
                i = i + 1
                print("not connected: {}".format(i))
            
                if (i % 2 == 0):
                    pycom.rgbled(0x00FF00)  # Green
                else:
                    pycom.rgbled(0x000000)  # off
                    
                time.sleep(0.25)
            
            pycom.rgbled(0x0000FF)  # Blue
            
            s = socket.socket()
            s = ssl.wrap_socket(s)
            s.connect(socket.getaddrinfo('www.google.com', 443)[0][-1])
            s.send(b"GET / HTTP/1.0\r\n\r\n")
            print(s.recv(4096))
            s.close()
            
            lte.disconnect()
            lte.dettach()
            
            pycom.rgbled(0x000000)  # off
            
            
            J 1 Reply Last reply Reply Quote 0
            • J Offline
              jmarcelino @tlanier
              last edited by

              @tlanier
              I'm really not sure about Hologram with our modules in the US, but lets do the basic checks first:

              • Have you connected the LTE antenna to the correct port - for the GPy should be next to LED
              • Have you waited enough time? - sometimes it can take up to 45 seconds to attach
              • Maybe reception isn't very good in your area - Cat M1 coverage is still limited. Try elsewhere or ideally outside.
              T 1 Reply Last reply Reply Quote 0
              • T Offline
                tlanier @jmarcelino
                last edited by

                @jmarcelino

                Hologram tech support indicates that their SIM card should work with Verizon and AT&T with your GPy device. They've indicated that they have a GPy and will try the test at their site.

                Yes, the LTE antenna is connected to the correct port.

                Yes, I've waited many minutes at 3 indoor locations (work and home) and 1 outdoor location with no successful attach to tower.

                A cell phone shows the Verizon signal strength to be 3 bars.

                Any other ideas of what I can try?

                Are there any modem commands that would help understand what is taking place?

                J 1 Reply Last reply Reply Quote 0
                • ChrisGammellC Offline
                  ChrisGammell
                  last edited by

                  Hey Jose,

                  I've been testing it on a GPy, FiPy I have here. Is there an exhaustive list of the AT command set available anywhere? I'm also tracking my progress of troubleshooting on our forum where @tlanier also posted: https://community.hologram.io/t/pycom-gpy/1664

                  J 1 Reply Last reply Reply Quote 1
                  • J Offline
                    jmarcelino @tlanier
                    last edited by

                    Ok thanks @tlanier

                    Can you try replacing your LTE attach code with:

                    lte = LTE() 
                    
                    send_at_cmd_pretty('AT+CPIN?')
                    send_at_cmd_pretty('AT+CGDCONT=1,"IP","hologram"')
                    send_at_cmd_pretty('AT+CFUN=0')
                    send_at_cmd_pretty('AT+CEREG=2')
                    
                    send_at_cmd_pretty('AT!="clearscanconfig"')
                    send_at_cmd_pretty('AT!="RRC::addscanfreq band=4 dl-earfcn=2175"') 
                    send_at_cmd_pretty('AT!="RRC::addscanfreq band=12 dl-earfcn=5095"')
                    send_at_cmd_pretty('AT!="RRC::addscanfreq band=13 dl-earfcn=5230"')
                    send_at_cmd_pretty('AT+CFUN=1')
                     
                    while not lte.isattached():
                        time.sleep(1)
                        send_at_cmd_pretty('AT!="showphy"')
                        send_at_cmd_pretty('AT!="fsm"')
                        send_at_cmd_pretty('AT+CEREG?')   
                    

                    This will produce a lot of debug output

                    ChrisGammellC T 2 Replies Last reply Reply Quote 0
                    • J Offline
                      jmarcelino @ChrisGammell
                      last edited by

                      Thanks @chrisgammell !

                      The only AT command guide we can publish is this: https://docs.pycom.io/chapter/datasheets/downloads/Monarch_4G-EZ_LR5110_ATCommands_ReferenceManual_Rev3_NOCONFIDENTIAL.pdf

                      But really that should be enough, Sequans doesn't share the special AT!= commands even with us other than to solve particular problems.

                      1 Reply Last reply Reply Quote 0
                      • ChrisGammellC Offline
                        ChrisGammell @jmarcelino
                        last edited by

                        @jmarcelino said in GPy with Hologram.io SIM:

                        AT+CEREG?')

                        Here's mine:

                        
                        DL SYNCHRO STATISTICS
                        =====================
                            Synchro state                         : CELL SEARCH
                            PPU SIB1 ACQ watchdog                 : 1
                            Frequency Hypothesis RF  (Hz)         : -4000
                            RSRP (dBm)                            : -21474836.00
                            RSRQ  (dB)                            : -22.71
                            Channel estimation state (Cell-spec.) : LOW CINR
                            Channel estimation state (UE-spec.)   : LOW CINR
                            Channel estimation state (MBSFN)      : LOW CINR
                            Channel estimation CINR               : 0.00
                            Channel length                        : SHORT
                          AGC
                            AGC RX gain (dB)                      : 52.76
                            RX PSD BO (dBFs)                      : -21.92
                            RX PSD (dBm)                          : -93.92
                            Noise level RS (dBm)                  : -123.92
                            Digital gain (dB)                     : 12.24
                            CINR RS (dB)                          : -9.76
                          NARROWBANDS
                            Last DL NB                            : Central
                            Last UL NB                            : 0
                          AFC
                            Frequency offset RF  (Hz)             : 0
                            Frequency offset BB  (Hz)             : 0
                          PBCH
                            MIB received quantity                 : 573
                            MIB timeout quantity                  : 0
                        
                        OK
                        
                        
                        SYSTEM FSM
                        ==========
                            +--------------------------+--------------------+
                            |            FSM           |        STATE       |
                            +--------------------------+--------------------+
                            | RRC TOP FSM              |SCANNING            |
                            | RRC SEARCH FSM           |WAIT_CELL_ID        |
                            | RRC ACTIVE FSM           |NULL                |
                            | PMM PLMN FSM             |NORM_WAITCELL       |
                            | EMM MAIN FSM             |REGISTERED          |
                            | EMM AUTH FSM             |KASME_DEFINED       |
                            | EMM CONN FSM             |EMM_IDLE            |
                            | EMM TAU FSM              |NULL                |
                            | EMM TEST FSM             |NULL                |
                            | ESM BEARER FSM           |BEARER_ACTIVE       |
                            | SMS MT FSM               |IDLE                |
                            | SMS MO FSM               |IDLE                |
                            | HP MAIN FSM              |IDLE                |
                            | HP USIM FSM              |READY               |
                            | HP SMS MO FSM            |IDLE                |
                            | HP SMS MT FSM            |IDLE                |
                            | HP CAT FSM               |IDLE                |
                            +--------------------------+--------------------+
                        
                        OK
                        
                        
                        +CEREG: 2,4
                        
                        OK
                        
                        
                        DL SYNCHRO STATISTICS
                        =====================
                            Synchro state                         : CELL SEARCH
                            PPU SIB1 ACQ watchdog                 : 1
                            Frequency Hypothesis RF  (Hz)         : -2000
                            RSRP (dBm)                            : -21474836.00
                            RSRQ  (dB)                            : -22.71
                            Channel estimation state (Cell-spec.) : LOW CINR
                            Channel estimation state (UE-spec.)   : LOW CINR
                            Channel estimation state (MBSFN)      : LOW CINR
                            Channel estimation CINR               : 0.00
                            Channel length                        : SHORT
                          AGC
                            AGC RX gain (dB)                      : 25.26
                            RX PSD BO (dBFs)                      : -21.92
                            RX PSD (dBm)                          : -93.92
                            Noise level RS (dBm)                  : -123.92
                            Digital gain (dB)                     : 4.74
                            CINR RS (dB)                          : -9.76
                          NARROWBANDS
                            Last DL NB                            : Central
                            Last UL NB                            : 0
                          AFC
                            Frequency offset RF  (Hz)             : 0
                            Frequency offset BB  (Hz)             : 0
                          PBCH
                            MIB received quantity                 : 573
                            MIB timeout quantity                  : 0
                        
                        OK
                        
                        
                        SYSTEM FSM
                        ==========
                            +--------------------------+--------------------+
                            |            FSM           |        STATE       |
                            +--------------------------+--------------------+
                            | RRC TOP FSM              |SCANNING            |
                            | RRC SEARCH FSM           |WAIT_CELL_ID        |
                            | RRC ACTIVE FSM           |NULL                |
                            | PMM PLMN FSM             |NORM_WAITCELL       |
                            | EMM MAIN FSM             |REGISTERED          |
                            | EMM AUTH FSM             |KASME_DEFINED       |
                            | EMM CONN FSM             |EMM_IDLE            |
                            | EMM TAU FSM              |NULL                |
                            | EMM TEST FSM             |NULL                |
                            | ESM BEARER FSM           |BEARER_ACTIVE       |
                            | SMS MT FSM               |IDLE                |
                            | SMS MO FSM               |IDLE                |
                            | HP MAIN FSM              |IDLE                |
                            | HP USIM FSM              |READY               |
                            | HP SMS MO FSM            |IDLE                |
                            | HP SMS MT FSM            |IDLE                |
                            | HP CAT FSM               |IDLE                |
                            +--------------------------+--------------------+
                        
                        OK
                        
                        
                        +CEREG: 2,4
                        
                        OK
                        
                        
                        J 1 Reply Last reply Reply Quote 0
                        • ChrisGammellC Offline
                          ChrisGammell
                          last edited by

                          Also I'm still getting 99,99 for AT+CSQ

                          Yes, I double checked, the antenna is plugged into the correct ports :-D

                          @tlanier, did you check that command on yours?

                          T 1 Reply Last reply Reply Quote 1
                          • T Offline
                            tlanier @ChrisGammell
                            last edited by

                            @chrisgammell

                            Yes, I'm also getting +CSQ: 99,99

                            1 Reply Last reply Reply Quote 1
                            • J Offline
                              jmarcelino @ChrisGammell
                              last edited by

                              Thanks @chrisgammell

                              Can you try this instead please:

                              send_at_cmd_pretty('AT+CFUN=0')
                              send_at_cmd_pretty('AT+SQNCTM="verizon"')
                              
                              send_at_cmd_pretty('AT+CGDCONT=1,"IP","hologram"')
                              send_at_cmd_pretty('AT+CEREG=2')
                              send_at_cmd_pretty('AT+CFUN=1')
                              
                              send_at_cmd_pretty('AT!="showinit"')
                              
                              while not lte.isattached():
                                  time.sleep(1)
                                  send_at_cmd_pretty('AT!="showphy"')
                                  send_at_cmd_pretty('AT!="fsm"')
                                  send_at_cmd_pretty('AT+CEREG?')  
                              

                              The AT+SQNCTM="verizon"' setups up some other parameters for Verizon including scanning the correct bands. These should be reflected in the new debug command AT!="showinit" after CFUN=1

                              T 1 Reply Last reply Reply Quote 0
                              • T Offline
                                tlanier @jmarcelino
                                last edited by jmarcelino

                                @jmarcelino

                                Notice the first command (AT+CPIN?) generates an error.

                                CAT M1 Test - V0.1
                                
                                ERROR
                                
                                
                                OK
                                
                                
                                
                                OK
                                
                                
                                OK
                                
                                
                                OK
                                
                                
                                
                                OK
                                
                                
                                
                                OK
                                
                                
                                
                                OK
                                
                                
                                OK
                                
                                
                                DL SYNCHRO STATISTICS
                                =====================
                                    Synchro state                         : OFF
                                    PPU SIB1 ACQ watchdog                 : 0
                                    Frequency Hypothesis RF  (Hz)         : 0
                                    RSRP (dBm)                            : -21474836.00
                                    RSRQ  (dB)                            : -12.36
                                    Channel estimation state (Cell-spec.) : LOW CINR
                                    Channel estimation state (UE-spec.)   : LOW CINR
                                    Channel estimation state (MBSFN)      : LOW CINR
                                    Channel estimation CINR               : 0.00
                                    Channel length                        : SHORT
                                  AGC
                                    AGC RX gain (dB)                      : 44.55
                                    RX PSD BO (dBFs)                      : -21.15
                                    RX PSD (dBm)                          : -85.50
                                    Noise level RS (dBm)                  : -87.44
                                    Digital gain (dB)                     : 6.48
                                    CINR RS (dB)                          : 3.73
                                  NARROWBANDS
                                    Last DL NB                            : Central
                                    Last UL NB                            : 0
                                  AFC
                                    Frequency offset RF  (Hz)             : -359
                                    Frequency offset BB  (Hz)             : 0
                                  PBCH
                                    MIB received quantity                 : 1778
                                    MIB timeout quantity                  : 0
                                
                                OK
                                
                                
                                SYSTEM FSM
                                ==========
                                    +--------------------------+--------------------+
                                    |            FSM           |        STATE       |
                                    +--------------------------+--------------------+
                                    | RRC TOP FSM              |STOPPED             |
                                    | RRC SEARCH FSM           |NULL                |
                                    | RRC ACTIVE FSM           |NULL                |
                                    | PMM PLMN FSM             |NULL                |
                                    | EMM MAIN FSM             |NULL                |
                                    | EMM AUTH FSM             |NULL                |
                                    | EMM CONN FSM             |NULL                |
                                    | EMM TAU FSM              |NULL                |
                                    | EMM TEST FSM             |NULL                |
                                    | ESM BEARER FSM           |BEARER_NULL         |
                                    | SMS MT FSM               |IDLE                |
                                    | SMS MO FSM               |IDLE                |
                                    | HP MAIN FSM              |IDLE                |
                                    | HP USIM FSM              |NULL                |
                                    | HP SMS MO FSM            |IDLE                |
                                    | HP SMS MT FSM            |IDLE                |
                                    | HP CAT FSM               |NULL                |
                                    +--------------------------+--------------------+
                                
                                OK
                                
                                
                                +CEREG: 2,0
                                
                                OK
                                
                                
                                DL SYNCHRO STATISTICS
                                =====================
                                    Synchro state                         : OFF
                                    PPU SIB1 ACQ watchdog                 : 0
                                    Frequency Hypothesis RF  (Hz)         : 0
                                    RSRP (dBm)                            : -21474836.00
                                    RSRQ  (dB)                            : -12.36
                                    Channel estimation state (Cell-spec.) : LOW CINR
                                    Channel estimation state (UE-spec.)   : LOW CINR
                                    Channel estimation state (MBSFN)      : LOW CINR
                                    Channel estimation CINR               : 0.00
                                    Channel length                        : SHORT
                                  AGC
                                    AGC RX gain (dB)                      : 44.55
                                    RX PSD BO (dBFs)                      : -21.15
                                    RX PSD (dBm)                          : -85.50
                                    Noise level RS (dBm)                  : -87.44
                                    Digital gain (dB)                     : 6.48
                                    CINR RS (dB)                          : 3.73
                                  NARROWBANDS
                                    Last DL NB                            : Central
                                    Last UL NB                            : 0
                                  AFC
                                    Frequency offset RF  (Hz)             : -359
                                    Frequency offset BB  (Hz)             : 0
                                  PBCH
                                    MIB received quantity                 : 1778
                                    MIB timeout quantity                  : 0
                                
                                OK
                                
                                
                                SYSTEM FSM
                                ==========
                                    +--------------------------+--------------------+
                                    |            FSM           |        STATE       |
                                    +--------------------------+--------------------+
                                    | RRC TOP FSM              |STOPPED             |
                                    | RRC SEARCH FSM           |NULL                |
                                    | RRC ACTIVE FSM           |NULL                |
                                    | PMM PLMN FSM             |NULL                |
                                    | EMM MAIN FSM             |NULL                |
                                    | EMM AUTH FSM             |NULL                |
                                    | EMM CONN FSM             |NULL                |
                                    | EMM TAU FSM              |NULL                |
                                    | EMM TEST FSM             |NULL                |
                                    | ESM BEARER FSM           |BEARER_NULL         |
                                    | SMS MT FSM               |IDLE                |
                                    | SMS MO FSM               |IDLE                |
                                    | HP MAIN FSM              |IDLE                |
                                    | HP USIM FSM              |NULL                |
                                    | HP SMS MO FSM            |IDLE                |
                                    | HP SMS MT FSM            |IDLE                |
                                    | HP CAT FSM               |NULL                |
                                    +--------------------------+--------------------+
                                
                                OK
                                
                                
                                +CEREG: 2,0
                                
                                OK
                                
                                1 Reply Last reply Reply Quote 0
                                • T Offline
                                  tlanier @jmarcelino
                                  last edited by jmarcelino

                                  @jmarcelino

                                  CAT M1 Test - V0.1
                                  
                                  
                                  OK
                                  
                                  
                                  OK
                                  
                                  
                                  OK
                                  
                                  
                                  OK
                                  
                                  
                                  OK
                                  
                                  -- Scan options -------------------------------------------
                                  | . Init Stored info use     : true
                                  | . Init MRU freq use        : true
                                  | . Init REG freq use        : false
                                  | . Init FastScan use        : true
                                  | . Init iterative band scan : false
                                  | . Init scan batch of freq  : false
                                  | . Init hybrid 1 mode       : false
                                  | . Init optim SIB rx        : true
                                  | . Forced freq              : false
                                  | . MRU cell use             : true
                                  -----------------------------------------------------------
                                  -- Scan Command config ----------------------------------------------------
                                  | id | type  | object                                                     |
                                  ---------------------------------------------------------------------------
                                  | 1  | BAND  | (id:1) 4,13                                                |
                                  | 2  | DELAY | 5000 msec                                                  |
                                  | 3  | LOOP  | jump to cmd:1, dur:5000ms                                  |
                                  ---------------------------------------------------------------------------
                                  
                                  OK
                                  
                                  
                                  DL SYNCHRO STATISTICS
                                  =====================
                                      Synchro state                         : IDLE
                                      PPU SIB1 ACQ watchdog                 : 0
                                      Frequency Hypothesis RF  (Hz)         : 0
                                      RSRP (dBm)                            : -21474836.00
                                      RSRQ  (dB)                            : -12.79
                                      Channel estimation state (Cell-spec.) : LOW CINR
                                      Channel estimation state (UE-spec.)   : LOW CINR
                                      Channel estimation state (MBSFN)      : LOW CINR
                                      Channel estimation CINR               : 0.00
                                      Channel length                        : SHORT
                                    AGC
                                      AGC RX gain (dB)                      : 44.55
                                      RX PSD BO (dBFs)                      : -21.06
                                      RX PSD (dBm)                          : -85.55
                                      Noise level RS (dBm)                  : -86.52
                                      Digital gain (dB)                     : 6.53
                                      CINR RS (dB)                          : 2.09
                                    NARROWBANDS
                                      Last DL NB                            : Central
                                      Last UL NB                            : 0
                                    AFC
                                      Frequency offset RF  (Hz)             : -359
                                      Frequency offset BB  (Hz)             : 0
                                    PBCH
                                      MIB received quantity                 : 83
                                      MIB timeout quantity                  : 0
                                  
                                  OK
                                  
                                  
                                  SYSTEM FSM
                                  ==========
                                      +--------------------------+--------------------+
                                      |            FSM           |        STATE       |
                                      +--------------------------+--------------------+
                                      | RRC TOP FSM              |STOPPED             |
                                      | RRC SEARCH FSM           |NULL                |
                                      | RRC ACTIVE FSM           |NULL                |
                                      | PMM PLMN FSM             |NULL                |
                                      | EMM MAIN FSM             |NULL                |
                                      | EMM AUTH FSM             |NULL                |
                                      | EMM CONN FSM             |NULL                |
                                      | EMM TAU FSM              |NULL                |
                                      | EMM TEST FSM             |NULL                |
                                      | ESM BEARER FSM           |BEARER_NULL         |
                                      | SMS MT FSM               |IDLE                |
                                      | SMS MO FSM               |IDLE                |
                                      | HP MAIN FSM              |IDLE                |
                                      | HP USIM FSM              |NULL                |
                                      | HP SMS MO FSM            |IDLE                |
                                      | HP SMS MT FSM            |IDLE                |
                                      | HP CAT FSM               |NULL                |
                                      +--------------------------+--------------------+
                                  
                                  OK
                                  
                                  
                                  +CEREG: 2,0
                                  
                                  OK
                                  
                                  
                                  DL SYNCHRO STATISTICS
                                  =====================
                                      Synchro state                         : IDLE
                                      PPU SIB1 ACQ watchdog                 : 0
                                      Frequency Hypothesis RF  (Hz)         : 0
                                      RSRP (dBm)                            : -21474836.00
                                      RSRQ  (dB)                            : -12.79
                                      Channel estimation state (Cell-spec.) : LOW CINR
                                      Channel estimation state (UE-spec.)   : LOW CINR
                                      Channel estimation state (MBSFN)      : LOW CINR
                                      Channel estimation CINR               : 0.00
                                      Channel length                        : SHORT
                                    AGC
                                      AGC RX gain (dB)                      : 44.55
                                      RX PSD BO (dBFs)                      : -21.06
                                      RX PSD (dBm)                          : -85.55
                                      Noise level RS (dBm)                  : -86.52
                                      Digital gain (dB)                     : 6.53
                                      CINR RS (dB)                          : 2.09
                                    NARROWBANDS
                                      Last DL NB                            : Central
                                      Last UL NB                            : 0
                                    AFC
                                      Frequency offset RF  (Hz)             : -359
                                      Frequency offset BB  (Hz)             : 0
                                    PBCH
                                      MIB received quantity                 : 83
                                      MIB timeout quantity                  : 0
                                  
                                  OK
                                  
                                  
                                  SYSTEM FSM
                                  ==========
                                      +--------------------------+--------------------+
                                      |            FSM           |        STATE       |
                                      +--------------------------+--------------------+
                                      | RRC TOP FSM              |STOPPED             |
                                      | RRC SEARCH FSM           |NULL                |
                                      | RRC ACTIVE FSM           |NULL                |
                                      | PMM PLMN FSM             |NULL                |
                                      | EMM MAIN FSM             |NULL                |
                                      | EMM AUTH FSM             |NULL                |
                                      | EMM CONN FSM             |NULL                |
                                      | EMM TAU FSM              |NULL                |
                                      | EMM TEST FSM             |NULL                |
                                      | ESM BEARER FSM           |BEARER_NULL         |
                                      | SMS MT FSM               |IDLE                |
                                      | SMS MO FSM               |IDLE                |
                                      | HP MAIN FSM              |IDLE                |
                                      | HP USIM FSM              |NULL                |
                                      | HP SMS MO FSM            |IDLE                |
                                      | HP SMS MT FSM            |IDLE                |
                                      | HP CAT FSM               |NULL                |
                                      +--------------------------+--------------------+
                                  
                                  OK
                                  
                                  
                                  +CEREG: 2,0
                                  
                                  J 1 Reply Last reply Reply Quote 1
                                  • J Offline
                                    jmarcelino @tlanier
                                    last edited by

                                    @tlanier said in GPy with Hologram.io SIM:

                                    RRC TOP FSM |STOPPED

                                    Can you leave it for a minute or so please. You should see this changing to SCANNING but it's not immediate, it's done in cycles. Thanks.

                                    T 1 Reply Last reply Reply Quote 0
                                    • ChrisGammellC Offline
                                      ChrisGammell
                                      last edited by

                                      Looks like mine just needed to cycle a few more times as well, just got this:

                                      +CEREG: 2,5,"CC14","031D4803",7

                                      J 1 Reply Last reply Reply Quote 1
                                      • J Offline
                                        jmarcelino @ChrisGammell
                                        last edited by jmarcelino

                                        @chrisgammell

                                        That's great! 2,5 is what we want for Hologram (5 means attached as roaming)

                                        So does the while not lte.isattached(): loop finish correctly then and move to the connection step - which means PPP is established?

                                        lte.connect()   
                                        while not lte.isconnected():
                                            time.sleep(1)
                                        print("Connected!")
                                        
                                        ChrisGammellC 1 Reply Last reply Reply Quote 0
                                        • T Offline
                                          tlanier @jmarcelino
                                          last edited by

                                          @jmarcelino

                                          Mine has been running for about 10 minutes returning:

                                          +CEREG: 2,0

                                          My cell phone uses Verizon and it shows a strong 3 bar signal.

                                          I'm going to try powering down and back up to see if that will help.

                                          T J 2 Replies Last reply Reply Quote 0
                                          • T Offline
                                            tlanier @tlanier
                                            last edited by

                                            @tlanier

                                            After power off/on I'm now getting +CEREG: 2,4

                                            It never gets the 2,5 you mentioned after 10 mins.

                                            DL SYNCHRO STATISTICS

                                            Synchro state                         : MIB DETECT
                                            PPU SIB1 ACQ watchdog                 : 0
                                            Frequency Hypothesis RF  (Hz)         : -1000
                                            RSRP (dBm)                            : -21474836.00
                                            RSRQ  (dB)                            : -25.99
                                            Channel estimation state (Cell-spec.) : LOW CINR
                                            Channel estimation state (UE-spec.)   : LOW CINR
                                            Channel estimation state (MBSFN)      : LOW CINR
                                            Channel estimation CINR               : 0.00
                                            Channel length                        : SHORT
                                            

                                            AGC
                                            AGC RX gain (dB) : 54.90
                                            RX PSD BO (dBFs) : -21.71
                                            RX PSD (dBm) : -95.99
                                            Noise level RS (dBm) : -124.46
                                            Digital gain (dB) : 6.62
                                            CINR RS (dB) : -16.11
                                            NARROWBANDS
                                            Last DL NB : Central
                                            Last UL NB : 0
                                            AFC
                                            Frequency offset RF (Hz) : 47
                                            Frequency offset BB (Hz) : 0
                                            PBCH
                                            MIB received quantity : 1394
                                            MIB timeout quantity : 0

                                            OK

                                            SYSTEM FSM

                                            +--------------------------+--------------------+
                                            |            FSM           |        STATE       |
                                            +--------------------------+--------------------+
                                            | RRC TOP FSM              |SCANNING            |
                                            | RRC SEARCH FSM           |WAIT_CELL_ID        |
                                            | RRC ACTIVE FSM           |NULL                |
                                            | PMM PLMN FSM             |ANY_WAITCELL        |
                                            | EMM MAIN FSM             |NULL                |
                                            | EMM AUTH FSM             |NULL                |
                                            | EMM CONN FSM             |NULL                |
                                            | EMM TAU FSM              |NULL                |
                                            | EMM TEST FSM             |NULL                |
                                            | ESM BEARER FSM           |BEARER_NULL         |
                                            | SMS MT FSM               |IDLE                |
                                            | SMS MO FSM               |IDLE                |
                                            | HP MAIN FSM              |IDLE                |
                                            | HP USIM FSM              |ABSENT              |
                                            | HP SMS MO FSM            |IDLE                |
                                            | HP SMS MT FSM            |IDLE                |
                                            | HP CAT FSM               |NULL                |
                                            +--------------------------+--------------------+
                                            

                                            OK

                                            +CEREG: 2,4

                                            OK

                                            DL SYNCHRO STATISTICS

                                            Synchro state                         : CELL SEARCH
                                            PPU SIB1 ACQ watchdog                 : 0
                                            Frequency Hypothesis RF  (Hz)         : -1000
                                            RSRP (dBm)                            : -21474836.00
                                            RSRQ  (dB)                            : -25.99
                                            Channel estimation state (Cell-spec.) : LOW CINR
                                            Channel estimation state (UE-spec.)   : LOW CINR
                                            Channel estimation state (MBSFN)      : LOW CINR
                                            Channel estimation CINR               : 0.00
                                            Channel length                        : SHORT
                                            

                                            AGC
                                            AGC RX gain (dB) : 54.87
                                            RX PSD BO (dBFs) : -21.44
                                            RX PSD (dBm) : -96.46
                                            Noise level RS (dBm) : -126.46
                                            Digital gain (dB) : 10.13
                                            CINR RS (dB) : -16.11
                                            NARROWBANDS
                                            Last DL NB : Central
                                            Last UL NB : 0
                                            AFC
                                            Frequency offset RF (Hz) : 70
                                            Frequency offset BB (Hz) : 0
                                            PBCH
                                            MIB received quantity : 1422
                                            MIB timeout quantity : 0

                                            OK

                                            SYSTEM FSM

                                            +--------------------------+--------------------+
                                            |            FSM           |        STATE       |
                                            +--------------------------+--------------------+
                                            | RRC TOP FSM              |SYNCING             |
                                            | RRC SEARCH FSM           |WAIT_SYNC           |
                                            | RRC ACTIVE FSM           |NULL                |
                                            | PMM PLMN FSM             |ANY_WAITCELL        |
                                            | EMM MAIN FSM             |NULL                |
                                            | EMM AUTH FSM             |NULL                |
                                            | EMM CONN FSM             |NULL                |
                                            | EMM TAU FSM              |NULL                |
                                            | EMM TEST FSM             |NULL                |
                                            | ESM BEARER FSM           |BEARER_NULL         |
                                            | SMS MT FSM               |IDLE                |
                                            | SMS MO FSM               |IDLE                |
                                            | HP MAIN FSM              |IDLE                |
                                            | HP USIM FSM              |ABSENT              |
                                            | HP SMS MO FSM            |IDLE                |
                                            | HP SMS MT FSM            |IDLE                |
                                            | HP CAT FSM               |NULL                |
                                            +--------------------------+--------------------+
                                            

                                            OK

                                            +CEREG: 2,4

                                            OK

                                            DL SYNCHRO STATISTICS

                                            Synchro state                         : IDLE
                                            PPU SIB1 ACQ watchdog                 : 1
                                            Frequency Hypothesis RF  (Hz)         : -1000
                                            RSRP (dBm)                            : -21474836.00
                                            RSRQ  (dB)                            : -25.99
                                            Channel estimation state (Cell-spec.) : LOW CINR
                                            Channel estimation state (UE-spec.)   : LOW CINR
                                            Channel estimation state (MBSFN)      : LOW CINR
                                            Channel estimation CINR               : 0.00
                                            Channel length                        : SHORT
                                            

                                            AGC
                                            AGC RX gain (dB) : 54.87
                                            RX PSD BO (dBFs) : -21.78
                                            RX PSD (dBm) : -98.39
                                            Noise level RS (dBm) : -126.46
                                            Digital gain (dB) : 9.05
                                            CINR RS (dB) : -16.11
                                            NARROWBANDS
                                            Last DL NB : Central
                                            Last UL NB : 0
                                            AFC
                                            Frequency offset RF (Hz) : 43
                                            Frequency offset BB (Hz) : 0
                                            PBCH
                                            MIB received quantity : 1429
                                            MIB timeout quantity : 0

                                            OK

                                            SYSTEM FSM

                                            +--------------------------+--------------------+
                                            |            FSM           |        STATE       |
                                            +--------------------------+--------------------+
                                            | RRC TOP FSM              |INITIAL             |
                                            | RRC SEARCH FSM           |INITIAL             |
                                            | RRC ACTIVE FSM           |NULL                |
                                            | PMM PLMN FSM             |PARKING             |
                                            | EMM MAIN FSM             |NULL                |
                                            | EMM AUTH FSM             |NULL                |
                                            | EMM CONN FSM             |NULL                |
                                            | EMM TAU FSM              |NULL                |
                                            | EMM TEST FSM             |NULL                |
                                            | ESM BEARER FSM           |BEARER_NULL         |
                                            | SMS MT FSM               |IDLE                |
                                            | SMS MO FSM               |IDLE                |
                                            | HP MAIN FSM              |IDLE                |
                                            | HP USIM FSM              |ABSENT              |
                                            | HP SMS MO FSM            |IDLE                |
                                            | HP SMS MT FSM            |IDLE                |
                                            | HP CAT FSM               |NULL                |
                                            +--------------------------+--------------------+
                                            

                                            OK

                                            +CEREG: 2,4

                                            OK

                                            DL SYNCHRO STATISTICS

                                            Synchro state                         : IDLE
                                            PPU SIB1 ACQ watchdog                 : 1
                                            Frequency Hypothesis RF  (Hz)         : -1000
                                            RSRP (dBm)                            : -21474836.00
                                            RSRQ  (dB)                            : -25.99
                                            Channel estimation state (Cell-spec.) : LOW CINR
                                            Channel estimation state (UE-spec.)   : LOW CINR
                                            Channel estimation state (MBSFN)      : LOW CINR
                                            Channel estimation CINR               : 0.00
                                            Channel length                        : SHORT
                                            

                                            AGC
                                            AGC RX gain (dB) : 54.87
                                            RX PSD BO (dBFs) : -21.78
                                            RX PSD (dBm) : -98.39
                                            Noise level RS (dBm) : -126.46
                                            Digital gain (dB) : 9.05
                                            CINR RS (dB) : -16.11
                                            NARROWBANDS
                                            Last DL NB : Central
                                            Last UL NB : 0
                                            AFC
                                            Frequency offset RF (Hz) : 43
                                            Frequency offset BB (Hz) : 0
                                            PBCH
                                            MIB received quantity : 1429
                                            MIB timeout quantity : 0

                                            OK

                                            SYSTEM FSM

                                            +--------------------------+--------------------+
                                            |            FSM           |        STATE       |
                                            +--------------------------+--------------------+
                                            | RRC TOP FSM              |INITIAL             |
                                            | RRC SEARCH FSM           |INITIAL             |
                                            | RRC ACTIVE FSM           |NULL                |
                                            | PMM PLMN FSM             |PARKING             |
                                            | EMM MAIN FSM             |NULL                |
                                            | EMM AUTH FSM             |NULL                |
                                            | EMM CONN FSM             |NULL                |
                                            | EMM TAU FSM              |NULL                |
                                            | EMM TEST FSM             |NULL                |
                                            | ESM BEARER FSM           |BEARER_NULL         |
                                            | SMS MT FSM               |IDLE                |
                                            | SMS MO FSM               |IDLE                |
                                            | HP MAIN FSM              |IDLE                |
                                            | HP USIM FSM              |ABSENT              |
                                            | HP SMS MO FSM            |IDLE                |
                                            | HP SMS MT FSM            |IDLE                |
                                            | HP CAT FSM               |NULL                |
                                            +--------------------------+--------------------+
                                            

                                            OK

                                            +CEREG: 2,4

                                            OK

                                            DL SYNCHRO STATISTICS

                                            Synchro state                         : IDLE
                                            PPU SIB1 ACQ watchdog                 : 1
                                            Frequency Hypothesis RF  (Hz)         : -1000
                                            RSRP (dBm)                            : -21474836.00
                                            RSRQ  (dB)                            : -25.99
                                            Channel estimation state (Cell-spec.) : LOW CINR
                                            Channel estimation state (UE-spec.)   : LOW CINR
                                            Channel estimation state (MBSFN)      : LOW CINR
                                            Channel estimation CINR               : 0.00
                                            Channel length                        : SHORT
                                            

                                            AGC
                                            AGC RX gain (dB) : 54.87
                                            RX PSD BO (dBFs) : -21.78
                                            RX PSD (dBm) : -98.39
                                            Noise level RS (dBm) : -126.46
                                            Digital gain (dB) : 9.05
                                            CINR RS (dB) : -16.11
                                            NARROWBANDS
                                            Last DL NB : Central
                                            Last UL NB : 0
                                            AFC
                                            Frequency offset RF (Hz) : 43
                                            Frequency offset BB (Hz) : 0
                                            PBCH
                                            MIB received quantity : 1429
                                            MIB timeout quantity : 0

                                            OK

                                            SYSTEM FSM

                                            +--------------------------+--------------------+
                                            |            FSM           |        STATE       |
                                            +--------------------------+--------------------+
                                            | RRC TOP FSM              |INITIAL             |
                                            | RRC SEARCH FSM           |INITIAL             |
                                            | RRC ACTIVE FSM           |NULL                |
                                            | PMM PLMN FSM             |PARKING             |
                                            | EMM MAIN FSM             |NULL                |
                                            | EMM AUTH FSM             |NULL                |
                                            | EMM CONN FSM             |NULL                |
                                            | EMM TAU FSM              |NULL                |
                                            | EMM TEST FSM             |NULL                |
                                            | ESM BEARER FSM           |BEARER_NULL         |
                                            | SMS MT FSM               |IDLE                |
                                            | SMS MO FSM               |IDLE                |
                                            | HP MAIN FSM              |IDLE                |
                                            | HP USIM FSM              |ABSENT              |
                                            | HP SMS MO FSM            |IDLE                |
                                            | HP SMS MT FSM            |IDLE                |
                                            | HP CAT FSM               |NULL                |
                                            +--------------------------+--------------------+
                                            

                                            OK

                                            +CEREG: 2,4

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