GSM Module A6 from the makers of ESP8266
After the huge success of ESP8266 module the AI-THINKER introduces the new A6 GSM module. AT commands are same as that for SIM900. http://www.alselectro.com/gsm-a6-board.html Terminal software : http://www.alselectro.com/files/Terminal.exe AT COMMANDS : http://www.alselectro.com/files/A6-AT-Commands.pdf