sim 900 gprs/gsm แผ่นบอร์ดโมดูลสําหรับ arduino compatible กับ uno mega 2560 850/900/1800/1900/1700

00% Brand New and high quality The GPRS Shield is based on SIM900 module from SIMCOM and compatible with for Arduino and its clones. The GPRS Shield provides you a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module(They are all 2V8 logic) present onboard.