Nora Vazbyte / Mbed OS 99Problems-BLEAint1

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

source/main.cpp@10:8cf4069d064a, 2018-11-07 (annotated)

Committer:
vazbyte
Date:
Wed Nov 07 19:30:43 2018 +0000
Revision:
10:8cf4069d064a
Parent:
9:40874a5c5ad0
Child:
11:5023e8c93e4d
doesn't compile but will ficc

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