In the spring I assembled the device with this module, everything worked until mid-September, now from 10 sessions to the server comes 1-2. The port monitor showed that there are extra characters in the module responses, for example, the AT + SAPBR = 3.1 command, the "CONTYPE", "GPRS" module responds yyyyyyyyyAT + SAPBR = 3.1, "CONTYPE", "GPRS" OK and when AT + SAPBR = 1.1> commands (switching on the transmitter) in most cases will reboot altogether, and even if the command passes normally, it will restart exactly during the transfer of information. The impression that there is not enough power, I tried with a 35 ampere power supply - the same thing.
|