SIM808 GPS-GSM-GPRS Module Vibration Sensor Module (801S) all the cathode connections of

all the cathode connections of the LED segments are connected together to 'logic 0' / GND

It communicates with microcontroller via UART port

The pin out is directly compatible with Arduino

For words greater than 4-bits

Mode 1:cellphone carry on WIFI module directly

SIM808 GPS-GSM-GPRS Module Vibration Sensor Module (801S) all the cathode connections ofIntroduction : GPRS GSM GPS Shield based on the SIM808 GSM GPRS GPS all in one cellular phone module. You can add location tracking, voice, text, SMS and data to your project. This shield fits yourArduinoor , it is easy to use. This shield fits right over your Arduino or compatible. IT is a powerful GSM cellular module (we use the latest SIM808) with integrated GPS. This board based on the latest SIMCOM SIM808 GSM GPS module, it offers cellular GSM