Hi everyone !
I bought 2 SIM800C modules and i try to play with.
I power it with a 3000mA lipo cell, full charged, and try to communicate with a FTDI 3.3V official cable and the Docklight software.
But my issue is that the modules responds exactly what i send. Like this :
8/02/2018 07:09:56.834 [TX] - ATZ
08/02/2018 07:09:56.850 [RX] - ATZ
08/02/2018 07:23:00.509 [TX] - AT+IPR=115200
08/02/2018 07:23:00.528 [RX] - AT+IPR=115200
08/02/2018 07:23:05.298 [TX] - AT+GMR
08/02/2018 07:23:05.314 [RX] - AT+GMR
The only thing i get that seems nice is when i power down the module by pulling down the “boot” (or “link”) pin.
I get :
NORMAL POWER DOWN
I tried with my 2 modules, with and without SIM card, with and witout a 1000µF cap added…
Did someone got the same ?