[3-A4] SIM868 development board GSM GPRS Bluetooth GPS module

Penggunaan minimal : 5V 2 Ampere Direkomendasikan menggunakan USB To Serial TTL : https://www.tokopedia.com/raftech/usb-to-ttl-converter-pl2303hx-pl2303-konverter datasheet : https://drive.google.com/open?id=1atwQm92eug9jM5z7fi1WORSmhZdzF6PE Module description 1.RTC backup power: The RTC is powered after the device is powered down. 2. GPS power control pin: used to control whether the GPS part of the module has power, which saves power. 3. GSM antenna interface: Connect to the GSM GPRS antenna, which is the IPX-MINI type antenna interface. 4. DC-DC module: MSP series high reliability power chip is used, and the power enable pin is taken out. 5. Main serial port and power pin: The serial port is compatible with 3.3V and 5V controllers, and supports mainstream MCUs such as 51 STM32. 6. Active GPS antenna: Connect to the GPS antenna. The antenna interface is IPX-MINI type. 7. Headset mic interface: used to solder the voice mic interface, you can achieve the phone function. (We have mics and speakers for sale). 8.MIC SIM card holder: In-line SIM card holder, when the card is inserted, the SIM card is facing outward, and supports various mobile phone cards