SIM808 GPS/GPRS/GSM Shield For Arduino is an integrated quad-band GSM/GPRS and GPS navigation technology from the Arduino Shield. Features only one credit card size, according to Arduino pin packing pattern, is compatible with Arduino UNO, Arduino Leonardo, Arduino Mega and other motherboard.
Compared to the previous generation SIM908, the SIM808 has made some improvements in performance and stability. In addition to normal SMS and phone functions, the shield also supports MMS, DTMF, FTP and other functions. You can get data acquisition, wireless data transceiver, IoT application and GPS guidance.