RAK811 LoRa Module Breakout Board Low Power Wireless Communication Module SX1276 Support LoraWan 915MHZ Q108

RAK811 Breakout Board development board support the IPEX interface antenna and the SMA interface antenna. Power supply this board throught Pin20(LoRa_3.3V) and Pin11(GND) with 3.3V. Connect Pin12(BOOT0) to ground, and connect Pin18(RXD), Pin19(TXD) to the computer. Then open the Uart Assist Tool, send AT command to operate the module. How To Upgrade Firmware To upgrade the Breakout board, First we should make the module get into Boot mode. We should connect Pin12(BOOT0) with 3.3V. Then reset the module, Operate according to the steps: 1.Open the Flash Loader Demonstrator tool?Set the serial port parameters; 2.Click the "NEXT" button, arrive the following interface; 3.The again the "Next" button?Choose STM32L1_Cat2-128K; 4.Choose "Download to device"?Set the path to the new firmware, and click "NEXT" button. 5.Upgrading 6.Upgrade Successful.