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    GPy with Hologram.io SIM

    Scheduled Pinned Locked Moved GPy
    hologram.io
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    • 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

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

                                            @tlanier
                                            Maybe Cat M1 coverage in your area just isn’t very good yet, Verizon only uses one band (band 13) for Cat M1 while on mobile phones they support more.

                                            T 1 Reply Last reply Reply Quote 0

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