workss
Dependencies: mbed BLE_API nRF51822 VL53L0X
main.cpp
- Committer:
- vazbyte
- Date:
- 2019-03-14
- Revision:
- 34:1d3818f8c1a1
- Parent:
- 33:3fad9e7238a4
- Child:
- 35:daf134714cee
File content as of revision 34:1d3818f8c1a1:
#include "mbed.h" #include "ble/BLE.h" #include "VL53L0X.h" #include "ble/services/HeartRateService.h" #define range1_addr (0x56) #define range2_addr (0x60) #define range1_XSHUT p15 #define range2_XSHUT p16 #define VL53L0_I2C_SDA p30 #define VL53L0_I2C_SCL p7 #define TIME_SCALE 3 // sensors activated every 100ms * TIME_SCALE #define DIST_MIN 0 #define DIST_MAX 22 Serial pc(USBTX, USBRX); static DevI2C devI2c(VL53L0_I2C_SDA, VL53L0_I2C_SCL); DigitalOut led1(LED1); DigitalOut led2(LED2); DigitalOut led(LED3, 1); uint16_t customServiceUUID = 0xA000; uint16_t readCharUUID = 0xA001; uint16_t writeCharUUID = 0xA002; static DigitalOut shutdown1_pin(range1_XSHUT); static VL53L0X range1(&devI2c, &shutdown1_pin, NC); static DigitalOut shutdown2_pin(range2_XSHUT); static VL53L0X range2(&devI2c, &shutdown2_pin, NC); uint32_t distance1, distance2; int dist1, dist2, status1, status2; const static int cw = 20 / TIME_SCALE; int countdown = cw; bool countdown1_triggered = false, countdown2_triggered = false; bool step_in = false, step_out = false; bool range1_just_triggered = false, range2_just_triggered = false; const static char DEVICE_NAME[] = "OCCUPY-CRICHTON-ST"; static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE}; HeartRateService *hrService; uint8_t hrmCounter = 0; void connectionCallback(const Gap::ConnectionCallbackParams_t *) { printf("Bluetooth connected\n"); } void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *) { printf("Bluetooth disconnected\n"); BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); } void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) { BLE &ble = params->ble; ble_error_t error = params->error; if (error != BLE_ERROR_NONE) { return; } ble.gap().onConnection(connectionCallback); ble.gap().onDisconnection(disconnectionCallback); hrService = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); ble.gap().setAdvertisingInterval(100); ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR); ble.gap().startAdvertising(); } int format_dist(int distance) { int result; if (distance > 1270) result = 127; else result = distance/10; return result; } void wakeup_event_cb() { led != led; if (countdown1_triggered) { countdown--; if (countdown == 0) { countdown1_triggered = false; } } if (countdown2_triggered) { countdown--; if (countdown == 0) { countdown2_triggered = false; } } status1 = range1.get_distance(&distance1); status2 = range2.get_distance(&distance2); dist1 = format_dist(distance1); dist2 = format_dist(distance2); if (status1 == VL53L0X_ERROR_NONE) { printf("Range1 [mm]: %6ld\r\n", dist1); if (dist1 > DIST_MIN && dist1 < DIST_MAX) { led1 = 0; if (!countdown1_triggered && !countdown2_triggered) { countdown1_triggered = true; countdown = cw; } else if (countdown2_triggered && !range1_just_triggered) { printf("STEP IN DETECTED\n"); hrmCounter = 1; hrService->updateHeartRate(hrmCounter); countdown2_triggered = false; } range1_just_triggered = true; } else { led1 = 1; range1_just_triggered = false; } } else { // printf("Range1 [mm]: --\r\n"); led1 = 1; range2_just_triggered = false; } if (status2 == VL53L0X_ERROR_NONE) { printf("Range2 [mm]: %6ld\r\n", dist2); if (dist2 > DIST_MIN && dist2 < DIST_MAX) { led2 = 0; if (!countdown1_triggered && !countdown2_triggered) { countdown2_triggered = true; countdown = cw; } else if (countdown1_triggered && !range2_just_triggered) { printf("STEP OUT DETECTED\n"); hrmCounter = 16; hrService->updateHeartRate(hrmCounter); countdown1_triggered = false; } range2_just_triggered = true; } else { led2 = 1; range2_just_triggered = false; } } else { // printf("Range2 [mm]: --\r\n"); led2 = 1; range2_just_triggered = false; } } int main(void) { range1.init_sensor(range1_addr); range2.init_sensor(range2_addr); BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE); ble.init(bleInitComplete); Ticker ticker; ticker.attach(wakeup_event_cb, 0.1 * TIME_SCALE); while (ble.hasInitialized()) { ble.waitForEvent(); } }