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Bluetooth Terminal for micro:bit devices
This app communicates between Android and a micro:bit device. You can transmit and receive text in 'notification' or 'indication' mode. The UART communication also has to be implemented at the micro:bit device (Block, Javascript, MBED). Options: - Indication: Default micro:bit mode (otherwise notification mode) - LF: Linefeed added - CR: Carriage return added Requirements: - Min. Android 5 - Bluetooth Low Energy (BLE) - Paired devices - micro:bit programm (developed by yourself) V 2.1: Copy to Clipboard (Option Menu) V 2.2: Clear List (Option Menu), No Log Option V 2.5: Hex Mode MBED example: #include "MicroBit.h" #include "MicroBitUARTService.h" #include "BMP180.h" MicroBit uBit; MicroBitUARTService *uart; BMP180 bmp180(P0_30, P0_0); char buffer[80]; float pressure,temperature; int connected = 0; void onConnected(MicroBitEvent e) { uBit.display.scroll("C"); connected = 1; } void onDisconnected(MicroBitEvent e) { uBit.display.scroll("D"); connected = 0; } void onButtonA(MicroBitEvent e) { uBit.display.scroll(buffer); } void onButtonB(MicroBitEvent e) { uBit.display.scroll("SK"); } /* IMPORTANT !!! Oherwise you will run out of memory ! Recommend disabling the DFU and Event services in MicroBitConfig.h since they are not needed here: microbit->microbit-dal->inc->core->MicroBitConfig.h #define MICROBIT_BLE_DFU_SERVICE 0 #define MICROBIT_BLE_EVENT_SERVICE 0 #define MICROBIT_SD_GATT_TABLE_SIZE 0x500 */ int main() { bmp180.Initialize(64, BMP180_OSS_ULTRA_LOW_POWER); pressure = -1; temperature = -1; if (bmp180.ReadData(&temperature,&pressure)) sprintf(buffer, "%.2f C %4.0f hPa", temperature, pressure); else sprintf(buffer,"NOK"); // Initialise the micro:bit runtime. uBit.init(); uBit.messageBus.listen(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_CONNECTED, onConnected); uBit.messageBus.listen(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_DISCONNECTED, onDisconnected); uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, onButtonA); uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_BUTTON_EVT_CLICK, onButtonB); uart = new MicroBitUARTService(*uBit.ble, 32, 32); uBit.display.scroll(":)"); while(1) { pressure = -1; temperature = -1; if (bmp180.ReadData(&temperature,&pressure)) sprintf(buffer, "%.2f C %4.0f hPa", temperature, pressure); else sprintf(buffer,"NOK"); if (!connected) { uBit.sleep(500); } else { uart->send(buffer); uBit.sleep(1000); } } release_fiber(); }