Nora Vazbyte / Mbed OS 99Problems-BLEAint1

app critics will say it's money, cash, toes

source/main.cpp@12:3934b9d6d5a3, 2018-11-08 (annotated)

Committer:
vazbyte
Date:
Thu Nov 08 11:58:40 2018 +0000
Revision:
12:3934b9d6d5a3
Parent:
11:5023e8c93e4d
Child:
13:99ed8a3db67a
fixed step_delay, possibly!

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 11:5023e8c93e4d 19
vazbyte 10:8cf4069d064a 20 #include <ctime>
vazbyte 0:07212de2fec1 21 #include <mbed.h>
vazbyte 1:df8884d38960 22 #include "MPU9250.h"
vazbyte 0:07212de2fec1 23 #include "ble/BLE.h"
vazbyte 0:07212de2fec1 24 #include "ble/Gap.h"
vazbyte 1:df8884d38960 25 #include "ble/services/HeartRateService.h"
vazbyte 1:df8884d38960 26
vazbyte 0:07212de2fec1 27
vazbyte 0:07212de2fec1 28 DigitalOut led1(LED1, 1);
vazbyte 0:07212de2fec1 29
vazbyte 1:df8884d38960 30 const static char DEVICE_NAME[] = "ProVaida";
vazbyte 1:df8884d38960 31 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE};
vazbyte 0:07212de2fec1 32
vazbyte 4:af0530752b76 33 int16_t destination[3];
vaida 8:1735fddd5491 34 short hrmCounter = 0;
vaida 9:40874a5c5ad0 35 double step_threshold = 14.45;
vazbyte 12:3934b9d6d5a3 36
vazbyte 12:3934b9d6d5a3 37 //long step_delay = 330;
vazbyte 12:3934b9d6d5a3 38 long step_delay = 5 * 3.3; // clock() increments by 5 for each millisecond ellapsed
vazbyte 12:3934b9d6d5a3 39
vaida 9:40874a5c5ad0 40 double oldAcceleration = 0.0;
vazbyte 10:8cf4069d064a 41 long lastStepTime = 0;
vazbyte 10:8cf4069d064a 42 long timeCurrent;
vazbyte 10:8cf4069d064a 43
vazbyte 1:df8884d38960 44 static HeartRateService* hrService;
vazbyte 4:af0530752b76 45 MPU9250 mpu = MPU9250(P0_26, P0_27);
vazbyte 0:07212de2fec1 46
vazbyte 0:07212de2fec1 47 static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE);
vazbyte 0:07212de2fec1 48
vazbyte 0:07212de2fec1 49 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
vazbyte 0:07212de2fec1 50 {
vazbyte 0:07212de2fec1 51 BLE::Instance().gap().startAdvertising();
vazbyte 0:07212de2fec1 52 }
vazbyte 0:07212de2fec1 53
vazbyte 2:1957a4985d6e 54 void updateSensorValue() {
vazbyte 3:a33709dad06c 55 mpu.readAccelData(destination);
vazbyte 3:a33709dad06c 56
vaida 8:1735fddd5491 57 double acc_x = destination[0] / 1000.0;
vaida 8:1735fddd5491 58 double acc_y = destination[1] / 1000.0;
vaida 8:1735fddd5491 59 double acc_z = destination[2] / 1000.0;
vazbyte 3:a33709dad06c 60
vazbyte 7:9e2172e6550a 61 double sqr_acc_x = acc_x*acc_x;
vazbyte 7:9e2172e6550a 62 double sqr_acc_y = acc_y*acc_y;
vazbyte 7:9e2172e6550a 63 double sqr_acc_z = acc_z*acc_z;
vazbyte 3:a33709dad06c 64
vazbyte 3:a33709dad06c 65 double sum_acc = sqr_acc_x + sqr_acc_y + sqr_acc_z;
vaida 9:40874a5c5ad0 66
vaida 9:40874a5c5ad0 67 double accel = sqrt(sum_acc);
vazbyte 3:a33709dad06c 68
vaida 9:40874a5c5ad0 69 int step = 0;
vazbyte 11:5023e8c93e4d 70
vazbyte 11:5023e8c93e4d 71 timeCurrent = (unsigned long) clock();
vazbyte 11:5023e8c93e4d 72
vazbyte 11:5023e8c93e4d 73
vazbyte 11:5023e8c93e4d 74 printf("timeCurrent: " );
vazbyte 11:5023e8c93e4d 75 printf("%ld\n", timeCurrent);
vazbyte 11:5023e8c93e4d 76
vazbyte 11:5023e8c93e4d 77 printf("lastStepTime: " );
vazbyte 11:5023e8c93e4d 78 printf("%ld\n", lastStepTime);
vazbyte 10:8cf4069d064a 79
vazbyte 11:5023e8c93e4d 80 if (accel < step_threshold && oldAcceleration >= step_threshold && (timeCurrent - lastStepTime > step_delay)) {
vazbyte 10:8cf4069d064a 81 step = 1;
vazbyte 10:8cf4069d064a 82 lastStepTime = timeCurrent;
vazbyte 10:8cf4069d064a 83 }
vaida 9:40874a5c5ad0 84
vaida 9:40874a5c5ad0 85 oldAcceleration = accel;
vaida 9:40874a5c5ad0 86
vaida 9:40874a5c5ad0 87 hrmCounter = (short) step;
vaida 9:40874a5c5ad0 88 printf("STEP: " );
vaida 8:1735fddd5491 89 printf("%hu\n", hrmCounter);
vaida 9:40874a5c5ad0 90
vazbyte 1:df8884d38960 91 hrService->updateHeartRate(hrmCounter);
vazbyte 0:07212de2fec1 92 }
vazbyte 0:07212de2fec1 93
vazbyte 0:07212de2fec1 94 void blinkCallback(void)
vazbyte 0:07212de2fec1 95 {
vazbyte 0:07212de2fec1 96 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
vazbyte 0:07212de2fec1 97 BLE &ble = BLE::Instance();
vazbyte 0:07212de2fec1 98 if (ble.gap().getState().connected) {
vazbyte 0:07212de2fec1 99 eventQueue.call(updateSensorValue);
vazbyte 0:07212de2fec1 100 }
vazbyte 0:07212de2fec1 101 }
vazbyte 0:07212de2fec1 102
vazbyte 0:07212de2fec1 103 /**
vazbyte 1:df8884d38960 104 * This function is called when the ble initialization process has failed
vazbyte 0:07212de2fec1 105 */
vazbyte 0:07212de2fec1 106 void onBleInitError(BLE &ble, ble_error_t error)
vazbyte 0:07212de2fec1 107 {
vazbyte 0:07212de2fec1 108 /* Initialization error handling should go here */
vazbyte 0:07212de2fec1 109 }
vazbyte 0:07212de2fec1 110
vazbyte 0:07212de2fec1 111 void printMacAddress()
vazbyte 0:07212de2fec1 112 {
vazbyte 0:07212de2fec1 113 /* Print out device MAC address to the console*/
vazbyte 0:07212de2fec1 114 Gap::AddressType_t addr_type;
vazbyte 0:07212de2fec1 115 Gap::Address_t address;
vazbyte 0:07212de2fec1 116 BLE::Instance().gap().getAddress(&addr_type, address);
vazbyte 0:07212de2fec1 117 printf("DEVICE MAC ADDRESS: ");
vazbyte 0:07212de2fec1 118 for (int i = 5; i >= 1; i--){
vazbyte 0:07212de2fec1 119 printf("%02x:", address[i]);
vazbyte 0:07212de2fec1 120 }
vazbyte 0:07212de2fec1 121 printf("%02x\r\n", address[0]);
vazbyte 0:07212de2fec1 122 }
vazbyte 0:07212de2fec1 123
vazbyte 0:07212de2fec1 124 /**
vazbyte 0:07212de2fec1 125 * Callback triggered when the ble initialization process has finished
vazbyte 0:07212de2fec1 126 */
vazbyte 0:07212de2fec1 127 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
vazbyte 0:07212de2fec1 128 {
vazbyte 0:07212de2fec1 129 BLE& ble = params->ble;
vazbyte 0:07212de2fec1 130 ble_error_t error = params->error;
vazbyte 0:07212de2fec1 131
vazbyte 0:07212de2fec1 132 if (error != BLE_ERROR_NONE) {
vazbyte 0:07212de2fec1 133 /* In case of error, forward the error handling to onBleInitError */
vazbyte 0:07212de2fec1 134 onBleInitError(ble, error);
vazbyte 0:07212de2fec1 135 return;
vazbyte 0:07212de2fec1 136 }
vazbyte 0:07212de2fec1 137
vazbyte 0:07212de2fec1 138 /* Ensure that it is the default instance of BLE */
vazbyte 0:07212de2fec1 139 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
vazbyte 0:07212de2fec1 140 return;
vazbyte 0:07212de2fec1 141 }
vazbyte 0:07212de2fec1 142
vazbyte 0:07212de2fec1 143 ble.gap().onDisconnection(disconnectionCallback);
vazbyte 0:07212de2fec1 144
vazbyte 0:07212de2fec1 145 /* Setup primary service */
vazbyte 1:df8884d38960 146 hrService = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
vazbyte 0:07212de2fec1 147
vazbyte 0:07212de2fec1 148 /* Setup advertising */
vazbyte 0:07212de2fec1 149 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
vazbyte 0:07212de2fec1 150 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *) uuid16_list, sizeof(uuid16_list));
vazbyte 0:07212de2fec1 151 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *) DEVICE_NAME, sizeof(DEVICE_NAME));
vazbyte 0:07212de2fec1 152 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
vazbyte 0:07212de2fec1 153 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
vazbyte 0:07212de2fec1 154 ble.gap().startAdvertising();
vazbyte 0:07212de2fec1 155
vaida 6:887df9bbe705 156
vazbyte 0:07212de2fec1 157 printMacAddress();
vaida 6:887df9bbe705 158
vazbyte 0:07212de2fec1 159 }
vazbyte 0:07212de2fec1 160
vazbyte 0:07212de2fec1 161 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
vazbyte 0:07212de2fec1 162 BLE &ble = BLE::Instance();
vazbyte 0:07212de2fec1 163 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
vazbyte 0:07212de2fec1 164 }
vazbyte 0:07212de2fec1 165
vazbyte 0:07212de2fec1 166 int main()
vazbyte 4:af0530752b76 167 {
vazbyte 2:1957a4985d6e 168 mpu.initMPU9250();
vazbyte 10:8cf4069d064a 169
vaida 9:40874a5c5ad0 170 eventQueue.call_every(100, blinkCallback);
vazbyte 0:07212de2fec1 171
vazbyte 0:07212de2fec1 172 BLE &ble = BLE::Instance();
vazbyte 0:07212de2fec1 173 ble.onEventsToProcess(scheduleBleEventsProcessing);
vazbyte 0:07212de2fec1 174 ble.init(bleInitComplete);
vazbyte 0:07212de2fec1 175
vazbyte 0:07212de2fec1 176 eventQueue.dispatch_forever();
vazbyte 0:07212de2fec1 177
vazbyte 0:07212de2fec1 178 return 0;
vazbyte 0:07212de2fec1 179 }