A6 Pro Serial GPRS GSM Module Core Developemnt BoardThis is professional version serial GSM / GPRS core development board based on GPRS A6 module. It supports dual-band GSM/GPRS network, available for GPRS and SMS message data remote transmission. Suitable for SIM800L GSM modules / Arduino SIM900 GPRS Shield
The A9G development board is a multifunctional development board based on AI Thinker’s A9G GPRS/GSM + GPS/ BDS module. You can use it to verify the basic communication and peripheral functions of A9G module. It has the basic phone/SMS, GPRS networking communications and GPS/BDS dual mode positioning function. There are lithium battery charge management, microphone, speaker interface, USB communication interface, multiple user keys/ led, TF card slot, acceleration sensor, SPI interface, I2C2 interface, ADC interface on the boards, so you can develop different functions with this board.