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or for phase control operation in light dimmers
Backlighting control for display panel
Minimum capacity: 2500 mAh
Wide supply voltage range 3
Jump interface select voltage is 5V or 3
GSM-GPRS Arduino SIM900 4511 or for phase control operationIntroduction : GSM GPRS MODULE is an ultra compact and reliable wireless module. It is based on SIM900 4 Frequency GPRS module. The GSM GPRS Shield is configured and controlled via its UART using simple AT commands. Module have two set power supply interface VCC5 5V power supply, VCC4 interface, 3. 5 4. 5V power supply, optional power on self starting (default) and control start. The MODULE allows you to achieve this via any of the three methods: