GSM/GPRS GPS/BDS A9G Development Board Wireless Data Transmission Positioning

Description GSM/GPRS GPS/BDS A9G Development Board Description GPRS GSM GPS BDS A9G Development Board GPS Antenna SMS Voice Wireless for Smart Watch AT Basic phone / SMS, GPRS networking communications, GPS / BDS dual-mode positioning capabilities Application: Use GPRS GPS, as well as acceleration sensors for vehicle immobilizer. Remote monitoring intercom using GSM and microphone / speakers Use GPRS / GSM GPS, for Smart watch with 1.54 “capacitive touch screen,heart rate oximeter sensor, 1.54-inch capacitive touch screen monitor the elderly Use GPRS TF camera extension board remote monitoring camera Contains a lithium battery charging management, microphone, speaker interface, USB communication interface, multiple user keys / led, TF card slot, accelerometer, SPI interface, I2C2 interface, ADC interface Can connect external 30W / 200W camera Can add a traditional slot machine Features Supports voice call and SMS message. Supports GSM/ GPRS frequency: 850/ 900/ 1800/ 1900 MHz. Supports GPRS data service, the maximum download data rate is 85.6 Kbps, upload data is 42.8 Kbps. Supports GSM07.07, 07. 05 AT commands and Ai-Thinker explosion command. Supports 3 serial ports, one download serial port, one AT command port. Specifications Size: 19.2mm x 18.8mm x 3mm Working temperature: -30 ℃-80℃ Working voltage: 3.5v – 4.2v (it’s best to power by 4v) Power voltage: >3.5v Low power consumption: Sensitivity: GPIO level: 2.8v Debugging: Use USB to TTL serial cable, VUSB rarr 5V; GND rarr GND; AT_TX rarr RX; AT_RX rarr TX Use USB cable to power the board,GNDrarrGND；AT_TXrarrRX；AT_RXrarrTX Use lithium battery to power the board, VBATrarr(3.3v-4.2)V; GNDrarrGND；AT_TXrarrRX；AT_RXrarrTX(Press power_key button for 2S) Default Baudrate is 115200,in the module initial power-on, you can modify the module’s baud rate Document Link : http://tinyurl.com/A9G-document Power on A9G development board can be powered by USB or lithium battery. It does not require any operation when powered 1-2s. Please press the Rst_Key button to reset. The module enters AT command mode by default. Package list A9G Development Board x 1 GPRS Antenna x 1 GPS Antenna x 1