Type:Voltage RegulatorCondition:NewApplication:ComputerSupply Voltage:1Dissipation Power:1is_customized:YesSIM808 Module GSM GPRS GPS Development Board IPX SMA with GPS Antenna for Raspberry Pi Support 2G 3G 4G SIM CardDescription:Start button: When the board is power on, the LED (PWR) will light up. After a long press (about 2 second) on this button, the other three LEDs will be light. And one of them starts to flash; this suggests that SIM808 is beginning to work now. When the power supply, GSM and GPS antenna and SIM card are connected to the module correctly, the LED will be flash slowly (3Second de 1second light), that indicates that the module is registered to the network, and you can make a call or do something else.TTL serial interface: a TTL level interface. Notice that: The pin of VMCU is used to control the high level of TTL UART, so as to realize to match between 1.25V/3.3V /5V systems. For example, if you want to use the 51 MCU to control this board, the pin of VMCU should be connected the DC5V. And if use the STM32 MCU, the pin of VMCU should be connected the DC3.3V. The pins of RXD is the RXD of SIM808 and the pins of TXD is the TXD of SIM808. The pin of V_IN can connect the Power, the function of this pin has the same function of DC044.USB interface: This interface is just use to update the firmware of SIM808 module.Package Included:1 X SIM808 Moudle1 X GSM Antenna1 X GPS AntennaUnit Type: Set Package Weight: 0.2kg (0.44lb.) Package Size: 8cm x 8cm x 5cm (3.15in x 3.15in x 1.97in)
Trustpilot
2 months ago
3 days ago
