I have browsed every forum possible but i can't figure out the problem with A7 module. 2 days ago it was working perfectly fine even on pins other than 1 & 2 but since then it has only gotten worse.
I am able to make calls and sms but only if i input the command manually like : AT ATD"phone number" ATH
It was previously communicating with arduino but now i if i upload a code and it won't just run. It only works manually.
The connections are :-
TX of A7-----> Tx of arduino
RX of A7-----> Rx of Arduino
Ground is common.
Previously simple code for call and sms after uploading to arduino, the A7 would work but now it is only accepting manual commands.
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
I am not familiar with the A7, but I would be connecting.
Rx of A7-----> Tx of arduino
Tx of A7-----> Rx of Arduino
As the flow of data is from Tx to Rx.
I Have tried everything. Even the connections you mentioned. But while inputting manual commands TX to TX and RX to RX works but not the other way round. I still haven't been able to get work by uploading a code to arduino.
The link to A7 Module : https://www.elecrow.com/wiki/index.php?title=A7_GPRS%2BGSM%2BGPS_Shield
Any help is appreciated.