SIM900 SIM 900 GPRS/GSM Shield Development BoardQuad-Band Module 7- Gear ratio: 1:78

7- Gear ratio: 1:78

1 X PS2 game Joystick module

Sensing Time: 2s

With this module

Comply with GSM phase 2/2 +

SIM900 SIM 900 GPRS/GSM Shield Development BoardQuad-Band Module 7- Gear ratio: 1:78SIM900 GSM GPRS shield is based on a chip of SIM900 from SIMCOM and is compatible with Arduino and its clones. It is used to make and receive phone calls, send and receive SMS and connect to the internet using the GPRS network via UART using AT commands. It supports quad band and can communicate through GSM 850 MHz, GSM 900 MHz, DCS 1800 MHz or PCS 1900 MHz networks. It has a power jack along with a toggle switch to use an external power supply.