Nora Vazbyte / Mbed OS 99Problems-BLEAint1

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source/main.cpp@9:40874a5c5ad0, 2018-11-07 (annotated)

Committer:
vaida
Date:
Wed Nov 07 10:55:00 2018 +0000
Revision:
9:40874a5c5ad0
Parent:
8:1735fddd5491
Child:
10:8cf4069d064a
sending steps 0/1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vazbyte 0:07212de2fec1 1 /* mbed Microcontroller Library
vazbyte 0:07212de2fec1 2 * Copyright (c) 2006-2014 ARM Limited
vazbyte 0:07212de2fec1 3 *
vazbyte 0:07212de2fec1 4 * Licensed under the Apache License, Version 2.0 (the "License");
vazbyte 0:07212de2fec1 5 * you may not use this file except in compliance with the License.
vazbyte 0:07212de2fec1 6 * You may obtain a copy of the License at
vazbyte 0:07212de2fec1 7 *
vazbyte 0:07212de2fec1 8 * http://www.apache.org/licenses/LICENSE-2.0
vazbyte 0:07212de2fec1 9 *
vazbyte 0:07212de2fec1 10 * Unless required by applicable law or agreed to in writing, software
vazbyte 0:07212de2fec1 11 * distributed under the License is distributed on an "AS IS" BASIS,
vazbyte 0:07212de2fec1 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vazbyte 0:07212de2fec1 13 * See the License for the specific language governing permissions and
vazbyte 0:07212de2fec1 14 * limitations under the License.
vazbyte 0:07212de2fec1 15 */
vazbyte 0:07212de2fec1 16
vazbyte 0:07212de2fec1 17 #include <events/mbed_events.h>
vazbyte 3:a33709dad06c 18 #include <math.h>
vazbyte 0:07212de2fec1 19 #include <mbed.h>
vazbyte 1:df8884d38960 20 #include "MPU9250.h"
vazbyte 0:07212de2fec1 21 #include "ble/BLE.h"
vazbyte 0:07212de2fec1 22 #include "ble/Gap.h"
vazbyte 1:df8884d38960 23 #include "ble/services/HeartRateService.h"
vazbyte 1:df8884d38960 24
vazbyte 0:07212de2fec1 25
vazbyte 0:07212de2fec1 26 DigitalOut led1(LED1, 1);
vazbyte 0:07212de2fec1 27
vazbyte 1:df8884d38960 28 const static char DEVICE_NAME[] = "ProVaida";
vazbyte 1:df8884d38960 29 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE};
vazbyte 0:07212de2fec1 30
vazbyte 4:af0530752b76 31 int16_t destination[3];
vaida 8:1735fddd5491 32 short hrmCounter = 0;
vaida 9:40874a5c5ad0 33 double step_threshold = 14.45;
vaida 9:40874a5c5ad0 34 double oldAcceleration = 0.0;
vazbyte 1:df8884d38960 35 static HeartRateService* hrService;
vazbyte 4:af0530752b76 36 MPU9250 mpu = MPU9250(P0_26, P0_27);
vazbyte 0:07212de2fec1 37
vazbyte 0:07212de2fec1 38 static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE);
vazbyte 0:07212de2fec1 39
vazbyte 0:07212de2fec1 40 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
vazbyte 0:07212de2fec1 41 {
vazbyte 0:07212de2fec1 42 BLE::Instance().gap().startAdvertising();
vazbyte 0:07212de2fec1 43 }
vazbyte 0:07212de2fec1 44
vazbyte 2:1957a4985d6e 45 void updateSensorValue() {
vazbyte 3:a33709dad06c 46 mpu.readAccelData(destination);
vazbyte 3:a33709dad06c 47
vaida 8:1735fddd5491 48 double acc_x = destination[0] / 1000.0;
vaida 8:1735fddd5491 49 double acc_y = destination[1] / 1000.0;
vaida 8:1735fddd5491 50 double acc_z = destination[2] / 1000.0;
vazbyte 3:a33709dad06c 51
vazbyte 7:9e2172e6550a 52 double sqr_acc_x = acc_x*acc_x;
vazbyte 7:9e2172e6550a 53 double sqr_acc_y = acc_y*acc_y;
vazbyte 7:9e2172e6550a 54 double sqr_acc_z = acc_z*acc_z;
vazbyte 3:a33709dad06c 55
vazbyte 3:a33709dad06c 56 double sum_acc = sqr_acc_x + sqr_acc_y + sqr_acc_z;
vaida 9:40874a5c5ad0 57
vaida 9:40874a5c5ad0 58 double accel = sqrt(sum_acc);
vazbyte 3:a33709dad06c 59
vaida 9:40874a5c5ad0 60 int step = 0;
vaida 9:40874a5c5ad0 61
vaida 9:40874a5c5ad0 62 if (accel < step_threshold && oldAcceleration >= step_threshold) {
vaida 9:40874a5c5ad0 63 // && (timeCurrent - lastStepTime > STEP_DELAY)) {
vaida 9:40874a5c5ad0 64 step = 1;
vaida 9:40874a5c5ad0 65 // lastStepTime = timeCurrent;
vaida 9:40874a5c5ad0 66 }
vaida 9:40874a5c5ad0 67
vaida 9:40874a5c5ad0 68 oldAcceleration = accel;
vaida 9:40874a5c5ad0 69
vaida 9:40874a5c5ad0 70 hrmCounter = (short) step;
vaida 9:40874a5c5ad0 71 printf("STEP: " );
vaida 8:1735fddd5491 72 printf("%hu\n", hrmCounter);
vaida 9:40874a5c5ad0 73
vazbyte 1:df8884d38960 74 hrService->updateHeartRate(hrmCounter);
vazbyte 0:07212de2fec1 75 }
vazbyte 0:07212de2fec1 76
vazbyte 0:07212de2fec1 77 void blinkCallback(void)
vazbyte 0:07212de2fec1 78 {
vazbyte 0:07212de2fec1 79 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
vazbyte 0:07212de2fec1 80 BLE &ble = BLE::Instance();
vazbyte 0:07212de2fec1 81 if (ble.gap().getState().connected) {
vazbyte 0:07212de2fec1 82 eventQueue.call(updateSensorValue);
vazbyte 0:07212de2fec1 83 }
vazbyte 0:07212de2fec1 84 }
vazbyte 0:07212de2fec1 85
vazbyte 0:07212de2fec1 86 /**
vazbyte 1:df8884d38960 87 * This function is called when the ble initialization process has failed
vazbyte 0:07212de2fec1 88 */
vazbyte 0:07212de2fec1 89 void onBleInitError(BLE &ble, ble_error_t error)
vazbyte 0:07212de2fec1 90 {
vazbyte 0:07212de2fec1 91 /* Initialization error handling should go here */
vazbyte 0:07212de2fec1 92 }
vazbyte 0:07212de2fec1 93
vazbyte 0:07212de2fec1 94 void printMacAddress()
vazbyte 0:07212de2fec1 95 {
vazbyte 0:07212de2fec1 96 /* Print out device MAC address to the console*/
vazbyte 0:07212de2fec1 97 Gap::AddressType_t addr_type;
vazbyte 0:07212de2fec1 98 Gap::Address_t address;
vazbyte 0:07212de2fec1 99 BLE::Instance().gap().getAddress(&addr_type, address);
vazbyte 0:07212de2fec1 100 printf("DEVICE MAC ADDRESS: ");
vazbyte 0:07212de2fec1 101 for (int i = 5; i >= 1; i--){
vazbyte 0:07212de2fec1 102 printf("%02x:", address[i]);
vazbyte 0:07212de2fec1 103 }
vazbyte 0:07212de2fec1 104 printf("%02x\r\n", address[0]);
vazbyte 0:07212de2fec1 105 }
vazbyte 0:07212de2fec1 106
vazbyte 0:07212de2fec1 107 /**
vazbyte 0:07212de2fec1 108 * Callback triggered when the ble initialization process has finished
vazbyte 0:07212de2fec1 109 */
vazbyte 0:07212de2fec1 110 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
vazbyte 0:07212de2fec1 111 {
vazbyte 0:07212de2fec1 112 BLE& ble = params->ble;
vazbyte 0:07212de2fec1 113 ble_error_t error = params->error;
vazbyte 0:07212de2fec1 114
vazbyte 0:07212de2fec1 115 if (error != BLE_ERROR_NONE) {
vazbyte 0:07212de2fec1 116 /* In case of error, forward the error handling to onBleInitError */
vazbyte 0:07212de2fec1 117 onBleInitError(ble, error);
vazbyte 0:07212de2fec1 118 return;
vazbyte 0:07212de2fec1 119 }
vazbyte 0:07212de2fec1 120
vazbyte 0:07212de2fec1 121 /* Ensure that it is the default instance of BLE */
vazbyte 0:07212de2fec1 122 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
vazbyte 0:07212de2fec1 123 return;
vazbyte 0:07212de2fec1 124 }
vazbyte 0:07212de2fec1 125
vazbyte 0:07212de2fec1 126 ble.gap().onDisconnection(disconnectionCallback);
vazbyte 0:07212de2fec1 127
vazbyte 0:07212de2fec1 128 /* Setup primary service */
vazbyte 1:df8884d38960 129 hrService = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
vazbyte 0:07212de2fec1 130
vazbyte 0:07212de2fec1 131 /* Setup advertising */
vazbyte 0:07212de2fec1 132 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
vazbyte 0:07212de2fec1 133 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *) uuid16_list, sizeof(uuid16_list));
vazbyte 0:07212de2fec1 134 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *) DEVICE_NAME, sizeof(DEVICE_NAME));
vazbyte 0:07212de2fec1 135 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
vazbyte 0:07212de2fec1 136 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
vazbyte 0:07212de2fec1 137 ble.gap().startAdvertising();
vazbyte 0:07212de2fec1 138
vaida 6:887df9bbe705 139
vazbyte 0:07212de2fec1 140 printMacAddress();
vaida 6:887df9bbe705 141
vazbyte 0:07212de2fec1 142 }
vazbyte 0:07212de2fec1 143
vazbyte 0:07212de2fec1 144 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
vazbyte 0:07212de2fec1 145 BLE &ble = BLE::Instance();
vazbyte 0:07212de2fec1 146 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
vazbyte 0:07212de2fec1 147 }
vazbyte 0:07212de2fec1 148
vazbyte 0:07212de2fec1 149 int main()
vazbyte 4:af0530752b76 150 {
vazbyte 2:1957a4985d6e 151 mpu.initMPU9250();
vaida 9:40874a5c5ad0 152 eventQueue.call_every(100, blinkCallback);
vazbyte 0:07212de2fec1 153
vazbyte 0:07212de2fec1 154 BLE &ble = BLE::Instance();
vazbyte 0:07212de2fec1 155 ble.onEventsToProcess(scheduleBleEventsProcessing);
vazbyte 0:07212de2fec1 156 ble.init(bleInitComplete);
vazbyte 0:07212de2fec1 157
vazbyte 0:07212de2fec1 158 eventQueue.dispatch_forever();
vazbyte 0:07212de2fec1 159
vazbyte 0:07212de2fec1 160 return 0;
vazbyte 0:07212de2fec1 161 }