SIM800 Development Board: What is the Operating voltage of SIM800 Development Board? Answer: It needs +5V 2Amp power supply to work.
Bandspeed Adaptor with 5V 2.6A:
http://www.e-gizmo.net/oc/index.php?route=product/product&product_id=46621 ...
SIM800L GSM Module Microsim Card Board: Is this compatible in Arduino/gizDuino? Answer: Yes, but you need to consider first what are the required power supply and other components for SIM800L module. (See the Datasheet)
SIM800L module's input power ...
SIM800L GSM Module Microsim Card Board: Is this compatible in Raspberry Pi? Answer: Yes, the SIM800L Module is compatible in Raspberry Pi. It has 3.3V power supply also the serial logic to communicate. ...
GSM Remote I/O Kit: What is the Operating voltage of GSM Remote I/O Kit? Answer: It needs +5V 2Amp power supply to work.
Bandspeed Adaptor (5V 2.6A): http://www.e-gizmo.net/oc/index.php?route=product/product&product_id=46621 ...