Hi, I start to work in a prototype with a module BG95-M3, and only for test it, whit a serial connection I send it simple commands, like ATI, but in the serial port always receive the same data -1, someone knows something about that? or how I can solve it? Hahahah someone can help me please?
I show you my monitor serial outputs
14:14:58.400 โ Start
14:14:59.205 โ ***********************
14:14:59.205 โ ATI
14:14:59.445 โ -1
14:15:00.454 โ AT+GMI=?
14:15:00.695 โ -1
14:15:01.706 โ Start
14:15:02.508 โ ***********************
14:15:02.508 โ ATI
14:15:02.748 โ -1
14:15:03.758 โ AT+GMI=?
14:15:03.998 โ -1
14:15:05.009 โ Start
14:15:05.810 โ ***********************
14:15:05.810 โ ATI
14:15:06.051 โ -1
14:15:07.066 โ AT+GMI=?
14:15:07.307 โ -1
14:15:08.308 โ Start
14:15:09.112 โ ***********************
14:15:09.112 โ ATI
14:15:09.353 โ -1
14:15:10.356 โ AT+GMI=?
14:15:10.594 โ -1
14:15:11.596 โ Start
14:15:12.404 โ ***********************
14:15:12.404 โ ATI
14:15:12.640 โ -1
14:15:13.640 โ AT+GMI=?
14:15:13.880 โ -1