RPi Zero W - GSM SIM808 Issue
Posted: Sun Sep 24, 2017 11:33 am
Hello everyone,
the problem is as follows:
I am getting module response using sudo screen /dev/serial0 9600 as follows :
RDY
+CFUN:1
+CPIN:READY
RDY
+CFUN:1
+CPIN:READY
^And this goes on and on (as if the module is retrying for connection..)
The SIM card is inserted in SIM808 module, and its connected to RPi + powered up normally.
I've setup RPi Zero W with no problems whatsoever (using SSH and/or VNC for connecting to RPi).
The OS is Raspbian stretch?, fully updated (update, upgrade, firmware..)
Below is the GSM SIM808 Breakout Board module:
https://www.aliexpress.com/store/produc ... 07442.html
I've got the basics such as connecting TX to RX and vice versa..
Additional info:
When the SIMCard is not inserted, I get no loop and I can work with module through 'screen /dev/serial0 9600' just fine (using AT commands).
SIM card info:
Sim card is T-mobile, 2G/3G/4G capable. It is activated (tested & works fine on mobile phone).
Hmm, what could be the issue?
the problem is as follows:
I am getting module response using sudo screen /dev/serial0 9600 as follows :
RDY
+CFUN:1
+CPIN:READY
RDY
+CFUN:1
+CPIN:READY
^And this goes on and on (as if the module is retrying for connection..)
The SIM card is inserted in SIM808 module, and its connected to RPi + powered up normally.
I've setup RPi Zero W with no problems whatsoever (using SSH and/or VNC for connecting to RPi).
The OS is Raspbian stretch?, fully updated (update, upgrade, firmware..)
Below is the GSM SIM808 Breakout Board module:
https://www.aliexpress.com/store/produc ... 07442.html
I've got the basics such as connecting TX to RX and vice versa..
Additional info:
When the SIMCard is not inserted, I get no loop and I can work with module through 'screen /dev/serial0 9600' just fine (using AT commands).
SIM card info:
Sim card is T-mobile, 2G/3G/4G capable. It is activated (tested & works fine on mobile phone).
Hmm, what could be the issue?