Clément Bertolini / Mbed 2 deprecated Keewi_v1

Firmware for Keewi v1 electronic board

Dependencies:   BLE_API mbed nRF51822

Fork of Keewi_v1 by Clément Bertolini

main.cpp@0:4f6fbeb69f11, 2014-07-17 (annotated)

Committer:
clemberto
Date:
Thu Jul 17 15:23:32 2014 +0000
Revision:
0:4f6fbeb69f11
Child:
1:e60b7762dd79
CSC profile

Who changed what in which revision?

UserRevisionLine numberNew contents of line
clemberto 0:4f6fbeb69f11 1 /* mbed Microcontroller Library
clemberto 0:4f6fbeb69f11 2 * Copyright (c) 2006-2013 ARM Limited
clemberto 0:4f6fbeb69f11 3 *
clemberto 0:4f6fbeb69f11 4 * Licensed under the Apache License, Version 2.0 (the "License");
clemberto 0:4f6fbeb69f11 5 * you may not use this file except in compliance with the License.
clemberto 0:4f6fbeb69f11 6 * You may obtain a copy of the License at
clemberto 0:4f6fbeb69f11 7 *
clemberto 0:4f6fbeb69f11 8 * http://www.apache.org/licenses/LICENSE-2.0
clemberto 0:4f6fbeb69f11 9 *
clemberto 0:4f6fbeb69f11 10 * Unless required by applicable law or agreed to in writing, software
clemberto 0:4f6fbeb69f11 11 * distributed under the License is distributed on an "AS IS" BASIS,
clemberto 0:4f6fbeb69f11 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
clemberto 0:4f6fbeb69f11 13 * See the License for the specific language governing permissions and
clemberto 0:4f6fbeb69f11 14 * limitations under the License.
clemberto 0:4f6fbeb69f11 15 */
clemberto 0:4f6fbeb69f11 16
clemberto 0:4f6fbeb69f11 17 #include "mbed.h"
clemberto 0:4f6fbeb69f11 18 #include "BLEDevice.h"
clemberto 0:4f6fbeb69f11 19
clemberto 0:4f6fbeb69f11 20 BLEDevice ble;
clemberto 0:4f6fbeb69f11 21 DigitalOut led1(LED1);
clemberto 0:4f6fbeb69f11 22
clemberto 0:4f6fbeb69f11 23 #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
clemberto 0:4f6fbeb69f11 24 * it will have an impact on code-size and power consumption. */
clemberto 0:4f6fbeb69f11 25
clemberto 0:4f6fbeb69f11 26 #if NEED_CONSOLE_OUTPUT
clemberto 0:4f6fbeb69f11 27 Serial pc(USBTX, USBRX);
clemberto 0:4f6fbeb69f11 28 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
clemberto 0:4f6fbeb69f11 29 #else
clemberto 0:4f6fbeb69f11 30 #define DEBUG(...) /* nothing */
clemberto 0:4f6fbeb69f11 31 #endif /* #if NEED_CONSOLE_OUTPUT */
clemberto 0:4f6fbeb69f11 32
clemberto 0:4f6fbeb69f11 33 const static char DEVICE_NAME[] = "Keewi_v1";
clemberto 0:4f6fbeb69f11 34
clemberto 0:4f6fbeb69f11 35 /* Heart Rate Service */
clemberto 0:4f6fbeb69f11 36 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.cycling_speed_and_cadence.xml*/
clemberto 0:4f6fbeb69f11 37 /* CSC Mes: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.csc_measurement.xml */
clemberto 0:4f6fbeb69f11 38 /* Feature: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.csc_feature.xml */
clemberto 0:4f6fbeb69f11 39 /* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.sensor_location.xml */
clemberto 0:4f6fbeb69f11 40 /* Control point: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.sc_control_point.xml */
clemberto 0:4f6fbeb69f11 41 static uint16_t cscCumulativeWheelRevolutions = 0;
clemberto 0:4f6fbeb69f11 42 static uint16_t cscLastWheelEventTime = 0; // Unit is second & has a resolution of 1/1024s.
clemberto 0:4f6fbeb69f11 43 static uint16_t cscCumulativeCrankRevolutions = 0;
clemberto 0:4f6fbeb69f11 44 static uint16_t cscLastCrankEventTime = 0; // Unit is second & has a resolution of 1/1024s.
clemberto 0:4f6fbeb69f11 45
clemberto 0:4f6fbeb69f11 46 static bool cscWheelRevolutionDataSupported = true;
clemberto 0:4f6fbeb69f11 47 static bool cscWCrankRevolutionDataSupported = true;
clemberto 0:4f6fbeb69f11 48 static bool cscMultipleSensorLocationsSupported = true;
clemberto 0:4f6fbeb69f11 49
clemberto 0:4f6fbeb69f11 50 static uint8_t csc_mes[4] = {cscCumulativeWheelRevolutions, cscLastWheelEventTime, cscCumulativeCrankRevolutions, cscLastCrankEventTime};
clemberto 0:4f6fbeb69f11 51 static uint8_t csc_feat[3] = {cscWheelRevolutionDataSupported, cscWCrankRevolutionDataSupported, cscMultipleSensorLocationsSupported};
clemberto 0:4f6fbeb69f11 52 GattCharacteristic cscMeasurement(GattCharacteristic::UUID_CSC_MEASUREMENT_CHAR, csc_mes, sizeof(csc_mes), sizeof(csc_mes),
clemberto 0:4f6fbeb69f11 53 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
clemberto 0:4f6fbeb69f11 54 static const uint8_t location = 0x09; /* Front Hub */
clemberto 0:4f6fbeb69f11 55 GattCharacteristic cscMesLocation(GattCharacteristic::UUID_CSC_MEASUREMENT_CHAR,
clemberto 0:4f6fbeb69f11 56 (uint8_t *)&location, sizeof(location), sizeof(location),
clemberto 0:4f6fbeb69f11 57 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
clemberto 0:4f6fbeb69f11 58 GattCharacteristic *cscChars[] = {&cscMeasurement, &cscMesLocation, };
clemberto 0:4f6fbeb69f11 59 GattService cscService(GattService::UUID_CYCLING_SPEED_AND_CADENCE, cscChars, sizeof(cscChars) / sizeof(GattCharacteristic *));
clemberto 0:4f6fbeb69f11 60
clemberto 0:4f6fbeb69f11 61 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE};
clemberto 0:4f6fbeb69f11 62
clemberto 0:4f6fbeb69f11 63 void disconnectionCallback(void)
clemberto 0:4f6fbeb69f11 64 {
clemberto 0:4f6fbeb69f11 65 DEBUG("Disconnected!\n\r");
clemberto 0:4f6fbeb69f11 66 DEBUG("Restarting the advertising process\n\r");
clemberto 0:4f6fbeb69f11 67 ble.startAdvertising();
clemberto 0:4f6fbeb69f11 68 }
clemberto 0:4f6fbeb69f11 69
clemberto 0:4f6fbeb69f11 70 /**
clemberto 0:4f6fbeb69f11 71 * Triggered periodically by the 'ticker' interrupt; updates hrmCounter.
clemberto 0:4f6fbeb69f11 72 */
clemberto 0:4f6fbeb69f11 73 void periodicCallback(void)
clemberto 0:4f6fbeb69f11 74 {
clemberto 0:4f6fbeb69f11 75 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
clemberto 0:4f6fbeb69f11 76
clemberto 0:4f6fbeb69f11 77 if (ble.getGapState().connected) {
clemberto 0:4f6fbeb69f11 78 /* Update the HRM measurement */
clemberto 0:4f6fbeb69f11 79 /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
clemberto 0:4f6fbeb69f11 80 /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
clemberto 0:4f6fbeb69f11 81 cscCumulativeWheelRevolutions+=3;
clemberto 0:4f6fbeb69f11 82 cscCumulativeCrankRevolutions++;
clemberto 0:4f6fbeb69f11 83
clemberto 0:4f6fbeb69f11 84 csc_mes[1] = cscCumulativeWheelRevolutions;
clemberto 0:4f6fbeb69f11 85 csc_mes[3] = cscCumulativeCrankRevolutions;
clemberto 0:4f6fbeb69f11 86 ble.updateCharacteristicValue(cscMeasurement.getHandle(), csc_mes, sizeof(csc_mes));
clemberto 0:4f6fbeb69f11 87 }
clemberto 0:4f6fbeb69f11 88 }
clemberto 0:4f6fbeb69f11 89
clemberto 0:4f6fbeb69f11 90 int main(void)
clemberto 0:4f6fbeb69f11 91 {
clemberto 0:4f6fbeb69f11 92 led1 = 1;
clemberto 0:4f6fbeb69f11 93 Ticker ticker;
clemberto 0:4f6fbeb69f11 94 ticker.attach(periodicCallback, 1);
clemberto 0:4f6fbeb69f11 95
clemberto 0:4f6fbeb69f11 96 DEBUG("Initialising the nRF51822\n\r");
clemberto 0:4f6fbeb69f11 97 ble.init();
clemberto 0:4f6fbeb69f11 98 ble.onDisconnection(disconnectionCallback);
clemberto 0:4f6fbeb69f11 99
clemberto 0:4f6fbeb69f11 100 /* setup advertising */
clemberto 0:4f6fbeb69f11 101 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
clemberto 0:4f6fbeb69f11 102 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t*)uuid16_list, sizeof(uuid16_list));
clemberto 0:4f6fbeb69f11 103 ble.accumulateAdvertisingPayload(GapAdvertisingData::CYCLING_SPEED_AND_CADENCE_SENSOR);
clemberto 0:4f6fbeb69f11 104 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
clemberto 0:4f6fbeb69f11 105 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
clemberto 0:4f6fbeb69f11 106 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
clemberto 0:4f6fbeb69f11 107 ble.startAdvertising();
clemberto 0:4f6fbeb69f11 108
clemberto 0:4f6fbeb69f11 109 ble.addService(cscService);
clemberto 0:4f6fbeb69f11 110
clemberto 0:4f6fbeb69f11 111 while (true) {
clemberto 0:4f6fbeb69f11 112 ble.waitForEvent();
clemberto 0:4f6fbeb69f11 113 }
clemberto 0:4f6fbeb69f11 114 }