Kopi_
Newbie level 5
Hi everyone,
I have a problem. I have been using SIM900D GSM module but the serial communication don't working.
The module are running and it is connecting on the network.
I am measuring on the pin 4 (TXD) 2,7V.
What is a problem?
I have a problem. I have been using SIM900D GSM module but the serial communication don't working.
The module are running and it is connecting on the network.
I am measuring on the pin 4 (TXD) 2,7V.
What is a problem?