Content in SIM800L GSM Module Microsim Card Board

• Is this compatible in Raspberry Pi?

  Yes, the SIM800L Module is compatible in Raspberry Pi. It has 3.3V power supply also the serial logic to communicate.
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• Is this compatible in Arduino/gizDuino?

  Yes, but you need to consider first what are the required power supply and other components for SIM800L module. (See
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• What is the Operating voltage of SIM800L module?

  The required power supply (modem) is 3.4 ~ 4.4V (4.0V Typical) to work.
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Wireless Devices