TomO post at 2018-2-28 23:59:39

2G-IOT No fun with AT+CFUN

Hey guys,
I wanted to use the 2G Module on my OPi 2G-IOT, but after receiving
CTZV:...
(sometimes I even get some infos more)
the whole system hangs (no interaction through DebugTTL, SSH and no response to ping).
I tried multiple PSUs, for one I have the Raspberry PI PSU with 5.1V 2,5A, and two laboratory PSUs, one with a limit of 3A and one with a limit of 5A.

an example of the communication:
AT
OK
AT+CPIN?
+CPIN:READY

OK
AT+CREG?
+CREG: 1,10

OK
AT+CSQ
+CSQ: 0,0

OK
AT+CFUN=1
OK

+CTZV:18/2/28,15:51:5,4

+CIEV: service,1
+CIEV: roam, 0

+CREG: 1I also tried the example programs, but the system hangs also with them.

Might this be a hardware defect?

noffe post at 2018-6-3 15:58:06

I use 2G module successfully
Just end AT commands to /dev/modem0 port
Thanks

annokt post at 2018-9-7 20:29:51

Hey TomO,

I have the exact same issue.
Have you resolved it?
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