J
OK. So my GPy's hardware was to blame. (Link)
Since I also have a more recent FiPy I upgraded that one to NB1 40343.
Success! I can read the 'Hello World!' message on the T-Mobile Netherlands dashboard.
If this code does not attach for you, check that the CAPS show that your band is supported. My GPy was missing band 8 and I have requested an RMA...
Testing code:
import os
from network import LTE
import usocket
import time
def send_at_cmd_pretty(cmd, delay=1000):
response = lte.send_at_cmd(cmd, delay=delay).split('\r\n')
print('Sent to modem: \'{}\', delay {} ms'.format(cmd, delay))
for line in response:
if line.strip() != '':
print(line)
# Print module details
un = os.uname()
print('Sysname:', un.sysname)
print('Release:', un.release)
print('Version:', un.version)
print('Machine:', un.machine)
# Initialize LTE object
lte = LTE()
time.sleep(5)
# Pre attaching debugging
print('Query LTE modem imei...', lte.imei()[:5] + '*' * 10)
print('Query SIM iccid...', lte.iccid()[:5] + '*' * 15)
send_at_cmd_pretty('ATI1')
send_at_cmd_pretty('AT!="showver"')
send_at_cmd_pretty('AT!="RRC:setDbgPerm full"')
send_at_cmd_pretty('AT!="RRC:showcaps"')
time.sleep(5)
send_at_cmd_pretty('AT+SQNCTM?')
# Attach LTE
print('LTE attaching...')
lte.attach(band=8, apn="cdp.iot.t-mobile.nl")
attempts = 0
while not lte.isattached():
time.sleep(5)
attempts = attempts + 1
print('Attaching...', attempts)
if attempts % 15 == 0:
send_at_cmd_pretty('AT+SQNMONI=9')
send_at_cmd_pretty('AT+CEREG?')
send_at_cmd_pretty('AT+CFUN?')
send_at_cmd_pretty('AT+CSQ')
send_at_cmd_pretty('AT!="showphy"')
send_at_cmd_pretty('AT!="fsm"')
print('LTE attach succeeded!')
# Debug attached state
send_at_cmd_pretty('AT+CEREG?')
send_at_cmd_pretty('AT+SQNMONI=9')
send_at_cmd_pretty('AT+CSQ')
send_at_cmd_pretty('AT!="showphy"')
send_at_cmd_pretty('AT!="fsm"')
send_at_cmd_pretty('AT+CGPADDR')
send_at_cmd_pretty('AT+PING="172.27.131.100"', delay=5000)
# Connect LTE
lte.connect()
attempts = 0
while not lte.isconnected():
time.sleep(5)
attempts = attempts + 1
print('Connecting...', attempts)
print('LTE connection succeeded!')
# Test DNS
try:
usocket.dnsserver(0, '8.8.8.8')
usocket.dnsserver(1, '1.1.1.1')
usocket.dnsserver()
print(usocket.getaddrinfo('www.google.com', 80)[0][-1])
except Exception:
print('DNS over NB-IoT failed...')
# Send message to dashboard
s = usocket.socket(usocket.AF_INET, usocket.SOCK_DGRAM)
s.setsockopt(usocket.SOL_SOCKET, usocket.SO_REUSEADDR, 1)
# s.settimeout(5)
# s.setblocking(False)
s.sendto(bytearray('Hello World!'), ('172.27.131.100', 15683))
s.close()
# Shutdown LTE
print("Disonnecting LTE ... ")
lte.disconnect()
print("Detaching LTE ... ")
lte.dettach()
print("Shuttting down LTE...")
lte.deinit()
Output:
Sysname: FiPy
Release: 1.20.0.rc7
Version: v1.9.4-2833cf5 on 2019-02-08
Machine: FiPy with ESP32
Query LTE modem imei... 35434**********
Query SIM iccid... 89882***************
Sent to modem: 'ATI1', delay 1000 ms
UE6.0.0.0
LR6.0.0.0-40343
OK
Sent to modem: 'AT!="showver"', delay 1000 ms
SYSTEM VERSION
==============
FIRMWARE VERSION
Bootloader0 : 5.1.1.0 [39529]
Bootloader1* : 6.0.0.0 [40343]
Bootloader2 : NA
NV Info : 1.1,0,0
Software : 6.0.0.0 [40343] by robot-soft at 2018-11-07 13:57:00
UE : 6.0.0.0
COMPONENTS
ZSP0 : 1.0.99-3171
ZSP1 : 1.0.98-3170
OK
Sent to modem: 'AT!="RRC:setDbgPerm full"', delay 1000 ms
OK
Sent to modem: 'AT!="RRC:showcaps"', delay 1000 ms
== CAPS config =============================
.Lock UE on SRV band : false
.MFBI support : true
.TM8 TDD support : false
============================================
== CAPS ====================================
. access stratum: R13
. catM : 1
. nb-IoT : 1
-- EUTRA bands --
. supported : 28/20/13/12/8/5/4/3
. board : 3/4/5/8/12/13/20/28
. admin :
. pending admin :
-- EUTRA carriers --
. admin :
. pending admin :
============================================
OK
Sent to modem: 'AT+SQNCTM?', delay 1000 ms
+SQNCTM: standard
OK
LTE attaching...
Attaching... 1
Attaching... 2
LTE attach succeeded!
Sent to modem: 'AT+CEREG?', delay 1000 ms
+CEREG: 2,5,"04F5","00710C67",9
OK
Sent to modem: 'AT+SQNMONI=9', delay 1000 ms
+SQNMONI: 20416 Cc:204 Nc:16 RSRP:-78.30 CINR:5.60 RSRQ:-12.00 TAC:1269 Id:287 EARFCN:3747 PWR:-58.52 PAGING:1024
OK
Sent to modem: 'AT+CSQ', delay 1000 ms
+CSQ: 27,99
OK
Sent to modem: 'AT!="showphy"', delay 1000 ms
DL SYNCHRO STATISTICS
=====================
Synchro state : CELL_ACQUIRED
PPU SIB1 ACQ watchdog : 0
Frequency Hypothesis RF (Hz) : 0
RSRP (dBm) : -79.52
RSRQ (dB) : -12.22
Channel estimation state (Cell-spec.) : LOW CINR
Channel estimation state (UE-spec.) : LOW CINR
Channel estimation state (MBSFN) : LOW CINR
Channel estimation CINR : 3.51
Channel length : SHORT
AGC
AGC RX gain (dB) : 42.49
RX PSD BO (dBFs) : -21.15
RX PSD (dBm) : -81.08
Noise level RS (dBm) : -83.83
Digital gain (dB) : 1.85
CINR RS (dB) : 4.31
NARROWBANDS
Last DL NB : Central
Last UL NB : 0
AFC
Frequency offset RF (Hz) : -737
Frequency offset BB (Hz) : 0
PBCH
MIB received quantity : 0
MIB timeout quantity : 0
OK
Sent to modem: 'AT!="fsm"', delay 1000 ms
SYSTEM FSM
==========
+--------------------------+--------------------+
| FSM | STATE |
+--------------------------+--------------------+
| RRC TOP FSM |CONNECTED |
| RRC SEARCH FSM |CAMPED |
| RRC ACTIVE FSM |CONNECTED |
| PMM PLMN FSM |NORM_CAMPED |
| EMM MAIN FSM |REGISTERED |
| EMM AUTH FSM |KASME_DEFINED |
| EMM CONN FSM |EMM_CONNECTED |
| EMM TAU FSM |NULL |
| EMM TEST FSM |NULL |
| ESM BEARER FSM |BEARER_ACTIVE |
| SMS MT FSM |IDLE |
| SMS MO FSM |IDLE |
| LPP 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
Sent to modem: 'AT+CGPADDR', delay 1000 ms
+CGPADDR: 1,"10.0.1.100"
OK
Sent to modem: 'AT+PING="172.27.131.100"', delay 5000 ms
+PING: 1,172.27.131.100,360,253
LTE connection succeeded!
DNS over NB-IoT failed...
Disonnecting LTE ...
Detaching LTE ...
Shuttting down LTE...
Pycom MicroPython 1.20.0.rc7 [v1.9.4-2833cf5] on 2019-02-08; FiPy with ESP32
Type "help()" for more information.
