tmeperature to mobile phone
Dependencies: BLE_API MPU6050 mbed nRF51822
Fork of BLE_HeartRate by
main.cpp
- Committer:
- youyou
- Date:
- 2014-06-10
- Revision:
- 7:c08bcc5e6537
- Parent:
- 5:b0baff4a124f
File content as of revision 7:c08bcc5e6537:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 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 "nRF51822n.h" #include "MPU6050.h" nRF51822n nrf; /* BLE radio driver */ Serial pc(USBTX, USBRX); MPU6050 mpu(P0_22, P0_20); /* Battery Level Service */ uint8_t batt = 88; /* Battery level */ GattService battService (GattService::UUID_BATTERY_SERVICE); GattCharacteristic battLevel (GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); GattService tempService (GattService::UUID_HEALTH_THERMOMETER_SERVICE); GattCharacteristic tempLevel (GattCharacteristic::UUID_TEMPERATURE_MEASUREMENT_CHAR, 2, 3, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); GattCharacteristic tempLocation ( GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); /* Heart Rate Service */ /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */ /* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */ /* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */ GattService hrmService (GattService::UUID_HEART_RATE_SERVICE); GattCharacteristic hrmRate ( GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, 2, 3, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY); GattCharacteristic hrmLocation ( GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, 1, 1, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); /* Device Information service */ uint8_t deviceName[] = {'Y', 'o', 'u','Y', 'o', 'u'}; GattService deviceInformationService ( GattService::UUID_DEVICE_INFORMATION_SERVICE); GattCharacteristic deviceManufacturer ( GattCharacteristic::UUID_MANUFACTURER_NAME_STRING_CHAR, sizeof(deviceName), sizeof(deviceName), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); uint8_t version[]={'Y', 'o', 'u','Y', 'o', 'u',' ','1','.','0'}; GattCharacteristic firmwareVersion ( GattCharacteristic::UUID_FIRMWARE_REVISION_STRING_CHAR, sizeof(version), sizeof(version), GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ); /* Advertising data and parameters */ GapAdvertisingData advData; GapAdvertisingData scanResponse; GapAdvertisingParams advParams (GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); uint16_t uuid16_list[] = {GattService::UUID_BATTERY_SERVICE, GattService::UUID_DEVICE_INFORMATION_SERVICE, GattService::UUID_HEART_RATE_SERVICE, GattService::UUID_HEALTH_THERMOMETER_SERVICE}; /**************************************************************************/ /*! @brief This custom class can be used to override any GapEvents that you are interested in handling on an application level. */ /**************************************************************************/ class GapEventHandler : public GapEvents { virtual void onTimeout(void) { pc.printf("Advertising Timeout!\r\n"); // Restart the advertising process with a much slower interval, // only start advertising again after a button press, etc. } virtual void onConnected(void) { pc.printf("Connected!\r\n"); } virtual void onDisconnected(void) { pc.printf("Disconnected!\r\n"); pc.printf("Restarting the advertising process\r\n"); nrf.getGap().startAdvertising(advParams); } }; /**************************************************************************/ /*! @brief This custom class can be used to override any GattServerEvents that you are interested in handling on an application level. */ /**************************************************************************/ class GattServerEventHandler : public GattServerEvents { //virtual void onDataSent(uint16_t charHandle) {} //virtual void onDataWritten(uint16_t charHandle) {} virtual void onUpdatesEnabled(uint16_t charHandle) { if (charHandle == hrmRate.getHandle()) { pc.printf("Heart rate notify enabled\r\n"); } if (charHandle == tempLevel.getHandle()) { pc.printf("Temperature notify enabled\r\n"); } } virtual void onUpdatesDisabled(uint16_t charHandle) { if (charHandle == hrmRate.getHandle()) { pc.printf("Heart rate notify disabled\r\n"); } if (charHandle == tempLevel.getHandle()) { pc.printf("Temperature notify disabled\r\n"); } } //virtual void onConfirmationReceived(uint16_t charHandle) {} }; /**************************************************************************/ /*! @brief Program entry point */ /**************************************************************************/ int main(void) { float accdata[3]; uint16_t time=0; wait(1); pc.baud(38400); /* Setup the local GAP/GATT event handlers */ nrf.getGap().setEventHandler(new GapEventHandler()); nrf.getGattServer().setEventHandler(new GattServerEventHandler()); /* Initialise the nRF51822 */ pc.printf("Initialising the nRF51822...\r\n"); nrf.init(); /* Make sure we get a clean start */ nrf.reset(); /* Add BLE-Only flag and complete service list to the advertising data */ advData.addFlags(GapAdvertisingData::BREDR_NOT_SUPPORTED); advData.addData(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); advData.addAppearance(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT); nrf.getGap().setAdvertisingData(advData, scanResponse); /* Add the Battery Level service */ battService.addCharacteristic(battLevel); nrf.getGattServer().addService(battService); /* Add the Device Information service */ deviceInformationService.addCharacteristic(deviceManufacturer); deviceInformationService.addCharacteristic(firmwareVersion); nrf.getGattServer().addService(deviceInformationService); /* Add the Heart Rate service */ hrmService.addCharacteristic(hrmRate); hrmService.addCharacteristic(hrmLocation); nrf.getGattServer().addService(hrmService); tempService.addCharacteristic(tempLevel); tempService.addCharacteristic(tempLocation); nrf.getGattServer().addService(tempService); /* Start advertising (make sure you've added all your data first) */ nrf.getGap().startAdvertising(advParams); mpu.setFrequency(100000); wait_ms(10); if (mpu.testConnection()) { pc.printf("MPU connection succeeded!\r\n"); } else { pc.printf("MPU connection failed!\r\n"); //Todo: If connection fails, retry a couple times. Try resetting MPU (this would need another wire?) } wait(2); mpu.setSleepMode(false); mpu.setBW(MPU6050_BW_20); mpu.setGyroRange(MPU6050_GYRO_RANGE_500); mpu.setAcceleroRange(MPU6050_ACCELERO_RANGE_2G); /* Wait until we are connected to a central device before updating * anything */ pc.printf("Waiting for a connection ...\r\n"); while (!nrf.getGap().state.connected) { } wait(3); pc.printf("Connected!\r\n"); /* Now that we're live, update the battery level characteristic, and */ /* change the device manufacturer characteristic to 'mbed' */ nrf.getGattServer().updateValue(battLevel.getHandle(), (uint8_t *)&batt, sizeof(batt)); nrf.getGattServer().updateValue(deviceManufacturer.getHandle(), deviceName, sizeof(deviceName)); nrf.getGattServer().updateValue(firmwareVersion.getHandle(), version, sizeof(version)); /* Set the heart rate monitor location (one time only) */ /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */ uint8_t location = 0x03; /* Finger */ uint8_t hrmCounter = 100; nrf.getGattServer().updateValue(hrmLocation.getHandle(), (uint8_t *)&location, sizeof(location)); nrf.getGattServer().updateValue(tempLocation.getHandle(), (uint8_t *)&location, sizeof(location)); for (;; ) { wait(1); /* Update battery level batt++; if (batt > 100) { batt = 72; } nrf.getGattServer().updateValue(battLevel.getHandle(), (uint8_t *)&batt, sizeof(batt)); */ /* Update the HRM measurement */ /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */ /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */ hrmCounter++; if (hrmCounter == 175) { hrmCounter = 100; } uint8_t bpm[2] = {0x00, hrmCounter}; nrf.getGattServer().updateValue(hrmRate.getHandle(), bpm, sizeof(bpm)); float f =mpu.getTemp(); int t = f; uint8_t temper[2]; temper[0]=t>>8; temper[1]=t; nrf.getGattServer().updateValue(tempLevel.getHandle(), temper, sizeof(temper)); pc.printf("HRM:"); pc.printf("%d",hrmCounter); pc.printf(" Temperature:"); pc.printf("%.2f",f); pc.printf(" "); mpu.getAccelero(accdata); time++; pc.printf("X:%.2f Y:%.2f Z:%.2f Time:%ds\r\n",accdata[0], accdata[1], accdata[2],time); } }