Nora Vazbyte / Mbed 2 deprecated BLE_Heartrate_VL53L0X

workss

Dependencies:   mbed BLE_API nRF51822 VL53L0X

main.cpp@32:b9306ebceb61, 2019-03-13 (annotated)

Committer:
vazbyte
Date:
Wed Mar 13 19:58:19 2019 +0000
Revision:
32:b9306ebceb61
Parent:
31:d1ceadbc6c44
Child:
33:3fad9e7238a4
Working step count and Bluetooth integration

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 0:cd5b6733aeb1 1 #include "mbed.h"
andresag 19:477567297aac 2 #include "ble/BLE.h"
vazbyte 24:931eeb8a70fc 3 #include "VL53L0X.h"
vazbyte 25:0a0805c118c0 4 #include "ble/services/HeartRateService.h"
vazbyte 31:d1ceadbc6c44 5
vazbyte 29:6ba8491c1dab 6 #define range1_addr (0x56)
vazbyte 29:6ba8491c1dab 7 #define range2_addr (0x60)
vazbyte 29:6ba8491c1dab 8 #define range1_XSHUT p15
vazbyte 29:6ba8491c1dab 9 #define range2_XSHUT p16
vazbyte 29:6ba8491c1dab 10 #define VL53L0_I2C_SDA p30
vazbyte 29:6ba8491c1dab 11 #define VL53L0_I2C_SCL p7
vazbyte 31:d1ceadbc6c44 12 #define TIME_SCALE 3 // sensors activated every 100ms * TIME_SCALE
vazbyte 29:6ba8491c1dab 13 #define DIST_MIN 0
vazbyte 29:6ba8491c1dab 14 #define DIST_MAX 22
vazbyte 24:931eeb8a70fc 15
vazbyte 24:931eeb8a70fc 16 Serial pc(USBTX, USBRX);
vazbyte 24:931eeb8a70fc 17 static DevI2C devI2c(VL53L0_I2C_SDA, VL53L0_I2C_SCL);
vazbyte 24:931eeb8a70fc 18 DigitalOut led1(LED1);
vazbyte 24:931eeb8a70fc 19 DigitalOut led2(LED2);
vazbyte 24:931eeb8a70fc 20 DigitalOut led(LED3, 1);
mbedAustin 9:b33f42191584 21 uint16_t customServiceUUID = 0xA000;
mbedAustin 13:62b1d32745ac 22 uint16_t readCharUUID = 0xA001;
mbedAustin 9:b33f42191584 23 uint16_t writeCharUUID = 0xA002;
vazbyte 31:d1ceadbc6c44 24
vazbyte 24:931eeb8a70fc 25 static DigitalOut shutdown1_pin(range1_XSHUT);
vazbyte 24:931eeb8a70fc 26 static VL53L0X range1(&devI2c, &shutdown1_pin, NC);
vazbyte 24:931eeb8a70fc 27 static DigitalOut shutdown2_pin(range2_XSHUT);
vazbyte 24:931eeb8a70fc 28 static VL53L0X range2(&devI2c, &shutdown2_pin, NC);
vazbyte 31:d1ceadbc6c44 29
vazbyte 31:d1ceadbc6c44 30 uint32_t distance1;
vazbyte 31:d1ceadbc6c44 31 uint32_t distance2;
vazbyte 31:d1ceadbc6c44 32 int dist1;
vazbyte 31:d1ceadbc6c44 33 int dist2;
vazbyte 31:d1ceadbc6c44 34 int status1;
vazbyte 31:d1ceadbc6c44 35 int status2;
vazbyte 24:931eeb8a70fc 36
vazbyte 31:d1ceadbc6c44 37 const static int cw = 20 / TIME_SCALE;
vazbyte 31:d1ceadbc6c44 38 int countdown = cw;
vazbyte 31:d1ceadbc6c44 39 bool countdown1_triggered = false, countdown2_triggered = false;
vazbyte 31:d1ceadbc6c44 40 bool step_in = false, step_out = false;
vazbyte 31:d1ceadbc6c44 41
vazbyte 31:d1ceadbc6c44 42 const static char DEVICE_NAME[] = "OCCUPY-CRICHTON-ST"; // change this
vazbyte 31:d1ceadbc6c44 43 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE}; //Custom UUID, FFFF is reserved for development
vazbyte 31:d1ceadbc6c44 44
vazbyte 25:0a0805c118c0 45 HeartRateService *hrService;
vazbyte 26:793d65b08afb 46 uint8_t hrmCounter = 0;
vazbyte 31:d1ceadbc6c44 47
vazbyte 32:b9306ebceb61 48 void connectionCallback(const Gap::ConnectionCallbackParams_t *) {
vazbyte 32:b9306ebceb61 49 printf("Bluetooth connected\n");
vazbyte 32:b9306ebceb61 50 }
vazbyte 32:b9306ebceb61 51
andresag 19:477567297aac 52 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
mbedAustin 1:94152e7d8b5c 53 {
vazbyte 32:b9306ebceb61 54 printf("Bluetooth disconnected\n");
andresag 22:406127954d1f 55 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising();
mbedAustin 1:94152e7d8b5c 56 }
vazbyte 31:d1ceadbc6c44 57
andresag 22:406127954d1f 58 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
andresag 22:406127954d1f 59 {
andresag 22:406127954d1f 60 BLE &ble = params->ble;
andresag 22:406127954d1f 61 ble_error_t error = params->error;
andresag 22:406127954d1f 62
andresag 22:406127954d1f 63 if (error != BLE_ERROR_NONE) {
andresag 22:406127954d1f 64 return;
andresag 22:406127954d1f 65 }
vazbyte 32:b9306ebceb61 66
vazbyte 32:b9306ebceb61 67 ble.gap().onConnection(connectionCallback);
andresag 19:477567297aac 68 ble.gap().onDisconnection(disconnectionCallback);
vazbyte 25:0a0805c118c0 69 hrService = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
vazbyte 31:d1ceadbc6c44 70
vazbyte 31:d1ceadbc6c44 71 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); // BLE only, no classic BT
vazbyte 31:d1ceadbc6c44 72 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); // advertising type
vazbyte 31:d1ceadbc6c44 73 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); // add name
vazbyte 31:d1ceadbc6c44 74 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); // UUID's broadcast in advertising packet
vazbyte 31:d1ceadbc6c44 75 ble.gap().setAdvertisingInterval(100); // 100ms.
vazbyte 25:0a0805c118c0 76 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR);
vazbyte 31:d1ceadbc6c44 77
andresag 19:477567297aac 78 ble.gap().startAdvertising();
andresag 22:406127954d1f 79 }
vazbyte 31:d1ceadbc6c44 80
vazbyte 27:903ec28ea7a0 81 int format_dist(int distance) {
vazbyte 31:d1ceadbc6c44 82 // local variable declaration
vazbyte 27:903ec28ea7a0 83 int result;
vazbyte 27:903ec28ea7a0 84
vazbyte 27:903ec28ea7a0 85 if (distance > 1270)
vazbyte 27:903ec28ea7a0 86 result = 127;
vazbyte 27:903ec28ea7a0 87 else
vazbyte 27:903ec28ea7a0 88 result = distance/10;
vazbyte 27:903ec28ea7a0 89
vazbyte 27:903ec28ea7a0 90 return result;
vazbyte 27:903ec28ea7a0 91 }
vazbyte 31:d1ceadbc6c44 92
vazbyte 23:52e8e05df60c 93 void wakeup_event_cb() {
vazbyte 23:52e8e05df60c 94 led != led;
vazbyte 24:931eeb8a70fc 95
vazbyte 29:6ba8491c1dab 96 if (countdown1_triggered) {
vazbyte 29:6ba8491c1dab 97 countdown--;
vazbyte 29:6ba8491c1dab 98 if (countdown == 0) {
vazbyte 29:6ba8491c1dab 99 countdown1_triggered = false;
vazbyte 29:6ba8491c1dab 100 }
vazbyte 29:6ba8491c1dab 101 }
vazbyte 29:6ba8491c1dab 102 if (countdown2_triggered) {
vazbyte 29:6ba8491c1dab 103 countdown--;
vazbyte 29:6ba8491c1dab 104 if (countdown == 0) {
vazbyte 29:6ba8491c1dab 105 countdown2_triggered = false;
vazbyte 29:6ba8491c1dab 106 }
vazbyte 29:6ba8491c1dab 107 }
vazbyte 31:d1ceadbc6c44 108
vazbyte 24:931eeb8a70fc 109 status1 = range1.get_distance(&distance1);
vazbyte 24:931eeb8a70fc 110 status2 = range2.get_distance(&distance2);
vazbyte 26:793d65b08afb 111
vazbyte 27:903ec28ea7a0 112 dist1 = format_dist(distance1);
vazbyte 27:903ec28ea7a0 113 dist2 = format_dist(distance2);
vazbyte 31:d1ceadbc6c44 114
vazbyte 24:931eeb8a70fc 115 if (status1 == VL53L0X_ERROR_NONE) {
vazbyte 31:d1ceadbc6c44 116 printf("Range1 [mm]: %6ld\r\n", dist1);
vazbyte 29:6ba8491c1dab 117 if (dist1 > DIST_MIN && dist1 < DIST_MAX) {
vazbyte 24:931eeb8a70fc 118 led1 = 0;
vazbyte 29:6ba8491c1dab 119
vazbyte 29:6ba8491c1dab 120 if (!countdown1_triggered && !countdown2_triggered) {
vazbyte 29:6ba8491c1dab 121 countdown1_triggered = true;
vazbyte 29:6ba8491c1dab 122 countdown = cw;
vazbyte 29:6ba8491c1dab 123 } else if (countdown2_triggered) {
vazbyte 29:6ba8491c1dab 124 printf("STEP IN DETECTED\n");
vazbyte 32:b9306ebceb61 125 hrmCounter = 1;
vazbyte 32:b9306ebceb61 126 hrService->updateHeartRate(hrmCounter);
vazbyte 29:6ba8491c1dab 127 countdown2_triggered = false;
vazbyte 29:6ba8491c1dab 128 }
vazbyte 24:931eeb8a70fc 129 }
vazbyte 24:931eeb8a70fc 130 else {
vazbyte 24:931eeb8a70fc 131 led1 = 1;
vazbyte 24:931eeb8a70fc 132 }
vazbyte 24:931eeb8a70fc 133 } else {
vazbyte 31:d1ceadbc6c44 134 printf("Range1 [mm]: --\r\n");
vazbyte 24:931eeb8a70fc 135 led1 = 1;
vazbyte 24:931eeb8a70fc 136 }
vazbyte 24:931eeb8a70fc 137 if (status2 == VL53L0X_ERROR_NONE) {
vazbyte 31:d1ceadbc6c44 138 printf("Range2 [mm]: %6ld\r\n", dist2);
vazbyte 29:6ba8491c1dab 139 if (dist2 > DIST_MIN && dist2 < DIST_MAX) {
vazbyte 27:903ec28ea7a0 140 led2 = 0;
vazbyte 29:6ba8491c1dab 141
vazbyte 29:6ba8491c1dab 142 if (!countdown1_triggered && !countdown2_triggered) {
vazbyte 29:6ba8491c1dab 143 countdown2_triggered = true;
vazbyte 29:6ba8491c1dab 144 countdown = cw;
vazbyte 29:6ba8491c1dab 145 } else if (countdown1_triggered) {
vazbyte 29:6ba8491c1dab 146 printf("STEP OUT DETECTED\n");
vazbyte 32:b9306ebceb61 147 hrmCounter = 16;
vazbyte 32:b9306ebceb61 148 hrService->updateHeartRate(hrmCounter);
vazbyte 29:6ba8491c1dab 149 countdown1_triggered = false;
vazbyte 29:6ba8491c1dab 150 }
vazbyte 27:903ec28ea7a0 151 }
vazbyte 24:931eeb8a70fc 152 } else {
vazbyte 31:d1ceadbc6c44 153 printf("Range2 [mm]: --\r\n");
vazbyte 24:931eeb8a70fc 154 led2 = 1;
vazbyte 24:931eeb8a70fc 155 }
vazbyte 23:52e8e05df60c 156 }
vazbyte 31:d1ceadbc6c44 157
andresag 22:406127954d1f 158 int main(void)
andresag 22:406127954d1f 159 {
vazbyte 24:931eeb8a70fc 160 range1.init_sensor(range1_addr);
vazbyte 24:931eeb8a70fc 161 range2.init_sensor(range2_addr);
vazbyte 24:931eeb8a70fc 162
andresag 22:406127954d1f 163 printf("\n\r********* Starting Main Loop *********\n\r");
vazbyte 24:931eeb8a70fc 164
andresag 22:406127954d1f 165 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
andresag 22:406127954d1f 166 ble.init(bleInitComplete);
andresag 22:406127954d1f 167
vazbyte 23:52e8e05df60c 168 Ticker ticker;
vazbyte 31:d1ceadbc6c44 169
vazbyte 31:d1ceadbc6c44 170 ticker.attach(wakeup_event_cb, 0.1 * TIME_SCALE);
vazbyte 24:931eeb8a70fc 171
vazbyte 23:52e8e05df60c 172 while (ble.hasInitialized()) {
vazbyte 24:931eeb8a70fc 173 ble.waitForEvent();
mbedAustin 2:e84c13abc479 174 }
andresag 20:fcc752d401ec 175 }