NB-IoT on fipy

[nalexopo]

Hello, I ve been trying to make nb-iot work on fipy. I have a base station "Amarisoft LTE 100" connected on a PC and I try with inband nb-IoT. I have managed to send data with SODAQ nb-iot shield.

I made all the firmware updates on fipy as instructed and I ran this code on the same SIM as in sodaq. Modem is responding however I should be seing the device on the basestation pc after running the modem settings and I dont. I run
lte.isattached() and returns false. Am I doing something wrong?

from network import LTE

lte = LTE()
lte.send_at_cmd('AT+CFUN=0')
lte.send_at_cmd('AT!="clearscanconfig"')
lte.send_at_cmd('AT!="addscanfreq band=20 dl-earfcn=6300"') # I also used dl-earfcn=6309
lte.send_at_cmd('AT!="zsp0:npc 1"')
lte.send_at_cmd('AT+CGDCONT=1,"IP","default"')
lte.send_at_cmd('AT+CFUN=1')

[nalexopo]

@jmarcelino I am still in need of a way to use NB-IoT on fipy. Is there a way to achive it? As I can see others have the same problem as me, so can we have some update on the state of the matter?

[Aris]

Hello,

any update on this?

[Aris]

Hello @jmarcelino,

do you have any updates on the matter? We have 5 FiPys laying in the box as we cannot connect them to our Amarisoft NB-IoT test network. We had contact Pycom's sales department before buying the modules and we were assured that we would be able to connect them to our network.

[ialkhouri]

Hi @jmarcelino

I am trying the exact same thing on GPy and i am facing a similar issue.

Your quick response is much appreciated.

from network import LTE

lte = LTE()

def send_at_cmd_pretty(cmd):
response = lte.send_at_cmd(cmd).split('\r\n')
for line in response:
print(line)

send_at_cmd_pretty('AT+Cmee=2')
time.sleep(1)

send_at_cmd_pretty('AT+CFUN=0')
time.sleep(1)
send_at_cmd_pretty('AT!="clearscanconfig"')
time.sleep(1)
send_at_cmd_pretty('AT!="addscanfreq band=3 dl-earfcn=1584"')
time.sleep(1)
send_at_cmd_pretty('AT!="zsp0:npc 1"')
time.sleep(1)
send_at_cmd_pretty('AT+CGDCONT=1,"IP","test123"')
time.sleep(3)
send_at_cmd_pretty('AT+CFUN=1')

for i in range(39):
time.sleep(1)
print('sleeping for 30 seconds')

[nalexopo]

Hello @jmarcelino
Any news on this?

[jmarcelino]

Hi @nalexopo

I only used Cat M1 with Amarisoft but I think someone from the team also used it with NB-IoT.

I'll try to find out how it was done, I think it needs some different settings.