this is implement of uart adxl345 ble nrf51
Dependencies: BLE_API adxl345 mbed nRF51822
Fork of ADXL345_HelloWorld by
main.cpp
- Committer:
- asyrofi
- Date:
- 2017-12-07
- Revision:
- 1:cfb4bb8f33e9
- Parent:
- 0:9e92575dece6
- Child:
- 2:89f008ca5911
File content as of revision 1:cfb4bb8f33e9:
#include "mbed.h" #include "ble/BLE.h" #include "ble/services/UARTService.h" #include "Serial.h" #include "ADXL345.h" #include "mbed.h" #define NEED_CONSOLE_OUTPUT 1 /* Set this if you need debug messages on the console; * it will have an impact on code-size and power consumption. */ #if NEED_CONSOLE_OUTPUT #define DEBUG(...) { printf(__VA_ARGS__); } #else #define DEBUG(...) /* nothing */ #endif /* #if NEED_CONSOLE_OUTPUT */ BLEDevice ble; DigitalOut led1(LED1); Serial uart1(USBTX,USBRX); UARTService *uartServicePtr; ADXL345 accelerometer(p5, p6, p7, p8); // (SDA, SDO, SCL, CS); uint8_t sFlag = 0; void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { DEBUG("Disconnected!\n\r"); DEBUG("Restarting the advertising process\n\r"); ble.startAdvertising(); } void connectionCallback(const Gap::ConnectionCallbackParams_t *params) { DEBUG("Connected!\n\r"); } uint8_t b[40]={'a','d','q','w'}; void onDataWritten1(const GattWriteCallbackParams *params) { if ((uartServicePtr != NULL) && (params->handle == uartServicePtr->getTXCharacteristicHandle())) { uint16_t bytesRead = params->len; DEBUG("received %u bytes %s\n\r", bytesRead,params->data); // if(sFlag == 1) // ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)b/*params->data*/, 4/*bytesRead*/); } } void periodicCallback(void) { led1 = !led1; } int main() { int readings[3] = {0, 0, 0}; uart1.printf("Starting ADXL345 test...\n"); uart1.printf("Device ID is: 0x%02x\n", accelerometer.getDevId()); //Go into standby mode to configure the device. accelerometer.setPowerControl(0x00); //Full resolution, +/-16g, 4mg/LSB. accelerometer.setDataFormatControl(0x0B); //3.2kHz data rate. accelerometer.setDataRate(ADXL345_3200HZ); //Measurement mode. accelerometer.setPowerControl(0x08); led1 = 1; uart1.baud(9600); Ticker ticker; ticker.attach(periodicCallback, 1); DEBUG("Initialising the nRF51822\n\r"); ble.init(); ble.onDisconnection(disconnectionCallback); ble.onConnection(connectionCallback); ble.onDataWritten(onDataWritten1); /* setup advertising */ ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED); ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.accumulateAdvertisingPayload(GapAdvertisingData::SHORTENED_LOCAL_NAME, (const uint8_t *)"BLE UART", sizeof("BLE UART") - 1); ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, (const uint8_t *)UARTServiceUUID_reversed, sizeof(UARTServiceUUID_reversed)); ble.setAdvertisingInterval(1000); /* 1000ms; in multiples of 0.625ms. */ ble.startAdvertising(); UARTService uartService(ble); uartServicePtr = &uartService; while (1) { ble.waitForEvent(); wait(0.1); accelerometer.getOutput(readings); //13-bit, sign extended values. uart1.printf("%i, %i, %i\n", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]); ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t*)readings[0]/*params->data*/, sizeof(readings),false/*bytesRead*/); ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t*)readings[1]/*params->data*/, sizeof(readings),false/*bytesRead*/); ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (uint8_t*)readings[2]/*params->data*/, sizeof(readings),false/*bytesRead*/); } }