demo with ST sensor and ST BLE
Dependencies: BLE_API X_NUCLEO_IDB0XA1 X_NUCLEO_IKS01A1 mbed-src-ST-demo
Fork of BLE_HeartRate_IDB0XA1 by
main.cpp
- Committer:
- NickZhouARM
- Date:
- 2016-04-14
- Revision:
- 16:8621076e799a
- Parent:
- 14:f715c13eb84f
File content as of revision 16:8621076e799a:
/* mbed Microcontroller Library * Copyright (c) 2006-2015 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "mbed.h" #include "ble/BLE.h" #include "ble/services/HeartRateService.h" #include "x_nucleo_iks01a1.h" Serial pc(SERIAL_TX, SERIAL_RX); DigitalOut led1(LED1, 1); /* Instantiate the expansion board */ static X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance(D14, D15); /* Retrieve the composing elements of the expansion board */ static GyroSensor *gyroscope = mems_expansion_board->GetGyroscope(); static MotionSensor *accelerometer = mems_expansion_board->GetAccelerometer(); static MagneticSensor *magnetometer = mems_expansion_board->magnetometer; static HumiditySensor *humidity_sensor = mems_expansion_board->ht_sensor; static PressureSensor *pressure_sensor = mems_expansion_board->pt_sensor; static TempSensor *temp_sensor1 = mems_expansion_board->ht_sensor; static TempSensor *temp_sensor2 = mems_expansion_board->pt_sensor; /* Helper function for printing floats & doubles */ static char *printDouble(char* str, double v, int decimalDigits=2) { int i = 1; int intPart, fractPart; int len; char *ptr; /* prepare decimal digits multiplicator */ for (;decimalDigits!=0; i*=10, decimalDigits--); /* calculate integer & fractinal parts */ intPart = (int)v; fractPart = (int)((v-(double)(int)v)*i); /* fill in integer part */ sprintf(str, "%i.", intPart); /* prepare fill in of fractional part */ len = strlen(str); ptr = &str[len]; /* fill in leading fractional zeros */ for (i/=10;i>1; i/=10, ptr++) { if(fractPart >= i) break; *ptr = '0'; } /* fill in (rest of) fractional part */ sprintf(ptr, "%i", fractPart); return str; } const static char DEVICE_NAME[] = "HRM1"; static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE}; static volatile bool triggerSensorPolling = false; void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) { (void)params; BLE::Instance().gap().startAdvertising(); // restart advertising } void periodicCallback(void) { led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ /* Note that the periodicCallback() executes in interrupt context, so it is safer to do * heavy-weight sensor polling from the main thread. */ triggerSensorPolling = true; } void onBleInitError(BLE &ble, ble_error_t error) { (void)ble; (void)error; /* Initialization error handling should go here */ } void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) { BLE& ble = params->ble; ble_error_t error = params->error; uint8_t id; float value1, value2; char buffer1[32], buffer2[32]; int32_t axes[3]; pc.printf("1\n"); if (error != BLE_ERROR_NONE) { onBleInitError(ble, error); return; } pc.printf("2\n"); if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) { return; } pc.printf("3\n"); ble.gap().onDisconnection(disconnectionCallback); /* Setup primary service. */ uint8_t hrmCounter = 100; // init HRM to 100bps HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER); pc.printf("4\n"); /* Setup advertising. */ ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.gap().setAdvertisingInterval(1000); /* 1000ms */ ble.gap().startAdvertising(); pc.printf("5\n"); humidity_sensor->ReadID(&id); pc.printf("HTS221 humidity & temperature = 0x%X\r\n", id); pressure_sensor->ReadID(&id); pc.printf("LPS25H pressure & temperature = 0x%X\r\n", id); magnetometer->ReadID(&id); pc.printf("LIS3MDL magnetometer = 0x%X\r\n", id); gyroscope->ReadID(&id); pc.printf("LSM6DS0 accelerometer & gyroscope = 0x%X\r\n", id); wait(3); // infinite loop while (true) { // check for trigger from periodicCallback() //pc.printf("6\n"); if (triggerSensorPolling && ble.getGapState().connected) { triggerSensorPolling = false; // Do blocking calls or whatever is necessary for sensor polling. // In our case, we simply update the HRM measurement. hrmCounter++; // 100 <= HRM bps <=175 if (hrmCounter == 175) { hrmCounter = 100; } // update bps hrService.updateHeartRate(hrmCounter); temp_sensor1->GetTemperature(&value1); humidity_sensor->GetHumidity(&value2); pc.printf("HTS221: [temp] %7s°C, [hum] %s%%\r\n", printDouble(buffer1, value1), printDouble(buffer2, value2)); temp_sensor2->GetFahrenheit(&value1); pressure_sensor->GetPressure(&value2); pc.printf("LPS25H: [temp] %7s°F, [press] %smbar\r\n", printDouble(buffer1, value1), printDouble(buffer2, value2)); pc.printf("---\r\n"); magnetometer->Get_M_Axes(axes); pc.printf("LIS3MDL [mag/mgauss]: %6ld, %6ld, %6ld\r\n", axes[0], axes[1], axes[2]); accelerometer->Get_X_Axes(axes); pc.printf("LSM6DS0 [acc/mg]: %6ld, %6ld, %6ld\r\n", axes[0], axes[1], axes[2]); gyroscope->Get_G_Axes(axes); pc.printf("LSM6DS0 [gyro/mdps]: %6ld, %6ld, %6ld\r\n", axes[0], axes[1], axes[2]); } else { ble.waitForEvent(); // low power wait for event } } } int main(void) { Ticker ticker; pc.printf("Hello World !\n"); ticker.attach(periodicCallback, 1); // blink LED every second BLE::Instance().init(bleInitComplete); }