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short-circuit protection
With this module
3pcs M3*12mm
0 Arduino pinout
SIM900 SIM 900 GPRS/GSM Shield Development BoardQuad-Band Module short-circuit protectionSIM900 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.
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