Skarphedinn Sigurdsson / Mbed 2 deprecated BLE_HeartRate

//test comment

Dependencies:   BLE_API mbed nRF51822

main.cpp@0:8db7a61ae7f7, 2014-06-23 (annotated)

Committer:
skarphedinnos
Date:
Mon Jun 23 12:57:46 2014 +0000
Revision:
0:8db7a61ae7f7
//test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
skarphedinnos 0:8db7a61ae7f7 1 /* mbed Microcontroller Library
skarphedinnos 0:8db7a61ae7f7 2 * Copyright (c) 2006-2013 ARM Limited
skarphedinnos 0:8db7a61ae7f7 3 *
skarphedinnos 0:8db7a61ae7f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
skarphedinnos 0:8db7a61ae7f7 5 * you may not use this file except in compliance with the License.
skarphedinnos 0:8db7a61ae7f7 6 * You may obtain a copy of the License at
skarphedinnos 0:8db7a61ae7f7 7 *
skarphedinnos 0:8db7a61ae7f7 8 * http://www.apache.org/licenses/LICENSE-2.0
skarphedinnos 0:8db7a61ae7f7 9 *
skarphedinnos 0:8db7a61ae7f7 10 * Unless required by applicable law or agreed to in writing, software
skarphedinnos 0:8db7a61ae7f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
skarphedinnos 0:8db7a61ae7f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
skarphedinnos 0:8db7a61ae7f7 13 * See the License for the specific language governing permissions and
skarphedinnos 0:8db7a61ae7f7 14 * limitations under the License.
skarphedinnos 0:8db7a61ae7f7 15 */
skarphedinnos 0:8db7a61ae7f7 16 //test
skarphedinnos 0:8db7a61ae7f7 17 #include "mbed.h"
skarphedinnos 0:8db7a61ae7f7 18 #include "BLEDevice.h"
skarphedinnos 0:8db7a61ae7f7 19
skarphedinnos 0:8db7a61ae7f7 20 BLEDevice ble;
skarphedinnos 0:8db7a61ae7f7 21 DigitalOut led1(LED1);
skarphedinnos 0:8db7a61ae7f7 22
skarphedinnos 0:8db7a61ae7f7 23 #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
skarphedinnos 0:8db7a61ae7f7 24 * it will have an impact on code-size and power consumption. */
skarphedinnos 0:8db7a61ae7f7 25
skarphedinnos 0:8db7a61ae7f7 26 #if NEED_CONSOLE_OUTPUT
skarphedinnos 0:8db7a61ae7f7 27 Serial pc(USBTX, USBRX);
skarphedinnos 0:8db7a61ae7f7 28 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
skarphedinnos 0:8db7a61ae7f7 29 #else
skarphedinnos 0:8db7a61ae7f7 30 #define DEBUG(...) /* nothing */
skarphedinnos 0:8db7a61ae7f7 31 #endif /* #if NEED_CONSOLE_OUTPUT */
skarphedinnos 0:8db7a61ae7f7 32
skarphedinnos 0:8db7a61ae7f7 33 /* Heart Rate Service */
skarphedinnos 0:8db7a61ae7f7 34 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */
skarphedinnos 0:8db7a61ae7f7 35 /* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
skarphedinnos 0:8db7a61ae7f7 36 /* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
skarphedinnos 0:8db7a61ae7f7 37 static uint8_t hrmCounter = 100;
skarphedinnos 0:8db7a61ae7f7 38 static uint8_t bpm[2] = {0x00, hrmCounter};
skarphedinnos 0:8db7a61ae7f7 39 GattCharacteristic hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, bpm, sizeof(bpm), sizeof(bpm),
skarphedinnos 0:8db7a61ae7f7 40 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
skarphedinnos 0:8db7a61ae7f7 41 static const uint8_t location = 0x03; /* Finger */
skarphedinnos 0:8db7a61ae7f7 42 GattCharacteristic hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
skarphedinnos 0:8db7a61ae7f7 43 (uint8_t *)&location, sizeof(location), sizeof(location),
skarphedinnos 0:8db7a61ae7f7 44 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
skarphedinnos 0:8db7a61ae7f7 45 GattCharacteristic *hrmChars[] = {&hrmRate, &hrmLocation, };
skarphedinnos 0:8db7a61ae7f7 46 GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, hrmChars, sizeof(hrmChars) / sizeof(GattCharacteristic *));
skarphedinnos 0:8db7a61ae7f7 47
skarphedinnos 0:8db7a61ae7f7 48 void disconnectionCallback(void)
skarphedinnos 0:8db7a61ae7f7 49 {
skarphedinnos 0:8db7a61ae7f7 50 DEBUG("Disconnected!\n\r");
skarphedinnos 0:8db7a61ae7f7 51 DEBUG("Restarting the advertising process\n\r");
skarphedinnos 0:8db7a61ae7f7 52 ble.startAdvertising();
skarphedinnos 0:8db7a61ae7f7 53 }
skarphedinnos 0:8db7a61ae7f7 54
skarphedinnos 0:8db7a61ae7f7 55 /**
skarphedinnos 0:8db7a61ae7f7 56 * Triggered periodically by the 'ticker' interrupt; updates hrmCounter.
skarphedinnos 0:8db7a61ae7f7 57 */
skarphedinnos 0:8db7a61ae7f7 58 void periodicCallback(void)
skarphedinnos 0:8db7a61ae7f7 59 {
skarphedinnos 0:8db7a61ae7f7 60 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
skarphedinnos 0:8db7a61ae7f7 61
skarphedinnos 0:8db7a61ae7f7 62 if (ble.getGapState().connected) {
skarphedinnos 0:8db7a61ae7f7 63 /* Update the HRM measurement */
skarphedinnos 0:8db7a61ae7f7 64 /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
skarphedinnos 0:8db7a61ae7f7 65 /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
skarphedinnos 0:8db7a61ae7f7 66 hrmCounter++;
skarphedinnos 0:8db7a61ae7f7 67 if (hrmCounter == 175) {
skarphedinnos 0:8db7a61ae7f7 68 hrmCounter = 100;
skarphedinnos 0:8db7a61ae7f7 69 }
skarphedinnos 0:8db7a61ae7f7 70 bpm[1] = hrmCounter;
skarphedinnos 0:8db7a61ae7f7 71 ble.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
skarphedinnos 0:8db7a61ae7f7 72 }
skarphedinnos 0:8db7a61ae7f7 73 }
skarphedinnos 0:8db7a61ae7f7 74
skarphedinnos 0:8db7a61ae7f7 75 int main(void)
skarphedinnos 0:8db7a61ae7f7 76 {
skarphedinnos 0:8db7a61ae7f7 77 led1 = 1;
skarphedinnos 0:8db7a61ae7f7 78 Ticker ticker;
skarphedinnos 0:8db7a61ae7f7 79 ticker.attach(periodicCallback, 1);
skarphedinnos 0:8db7a61ae7f7 80
skarphedinnos 0:8db7a61ae7f7 81 DEBUG("Initialising the nRF51822\n\r");
skarphedinnos 0:8db7a61ae7f7 82 ble.init();
skarphedinnos 0:8db7a61ae7f7 83 ble.onDisconnection(disconnectionCallback);
skarphedinnos 0:8db7a61ae7f7 84
skarphedinnos 0:8db7a61ae7f7 85 /* setup advertising */
skarphedinnos 0:8db7a61ae7f7 86 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
skarphedinnos 0:8db7a61ae7f7 87 ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
skarphedinnos 0:8db7a61ae7f7 88 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
skarphedinnos 0:8db7a61ae7f7 89 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
skarphedinnos 0:8db7a61ae7f7 90 ble.startAdvertising();
skarphedinnos 0:8db7a61ae7f7 91
skarphedinnos 0:8db7a61ae7f7 92 ble.addService(hrmService);
skarphedinnos 0:8db7a61ae7f7 93
skarphedinnos 0:8db7a61ae7f7 94 while (true) {
skarphedinnos 0:8db7a61ae7f7 95 ble.waitForEvent();
skarphedinnos 0:8db7a61ae7f7 96 }
skarphedinnos 0:8db7a61ae7f7 97 }