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Dependencies: Hexi_KW40Z Hexi_OLED_SSD1351 MAX30101
Fork of HeartRate by
main.cpp
- Committer:
- haoshiz
- Date:
- 2018-06-13
- Revision:
- 4:8cee5929f4d8
- Parent:
- 3:2e12e0cd1f26
File content as of revision 4:8cee5929f4d8:
#include "mbed.h" #include "mbed_events.h" #include "MAX30101.h" #include "string.h" #include "Hexi_OLED_SSD1351.h" #include "Hexi_KW40Z.h" #define FIFO_DATA_MAX 288 void UpdateSensorData(void); void StartHaptic(void); void StopHaptic(void const *n); void txTask(void); DigitalOut pwr1v8(PTA29); DigitalOut pwr3v3b(PTC13); DigitalOut pwr15v(PTB12); I2C i2c0(PTB1, PTB0); InterruptIn maximInterrupt(PTB18); Serial pc(USBTX, USBRX); SSD1351 oled(PTB22,PTB21,PTC13,PTB20,PTE6, PTD15); KW40Z kw40z_device(PTE24, PTE25); DigitalOut haptic(PTB9); EventQueue evqueue(32 * EVENTS_EVENT_SIZE); Thread t; /* Define timer for haptic feedback */ RtosTimer hapticTimer(StopHaptic, osTimerOnce); /*Create a Thread to handle sending BLE Sensor Data */ Thread txThread; MAX30101 hr(i2c0); int realHeartRate; float calorie; int mask_ppg = 0; uint32_t count = 0; uint32_t num; uint8_t testsignal = 60; void StartHaptic(void) { hapticTimer.start(50); haptic = 1; } void ButtonRight(void) { StartHaptic(); kw40z_device.ToggleAdvertisementMode(); } void ButtonLeft(void) { StartHaptic(); kw40z_device.ToggleAdvertisementMode(); } void StopHaptic(void const *n) { haptic = 0; hapticTimer.stop(); } void txTask(void){ while (true) { UpdateSensorData(); /*Notify Hexiwear App that it is running Sensor Tag mode*/ kw40z_device.SendSetApplicationMode(GUI_CURRENT_APP_SENSOR_TAG); //send heartrate kw40z_device.SendHeartRate(testsignal); /*The following is sending dummy data over BLE. Replace with real data*/ /*Send Battery Level for 20% kw40z_device.SendBatteryLevel(battery); Send Ambient Light Level at 50% kw40z_device.SendAmbientLight(light);*/ /*Send Humidity at 90% */ //kw40z_device.SendHumidity(humidity); /*Send Temperature at 25 degrees Celsius kw40z_device.SendTemperature(temperature); /*Send Pressure at 100kPA */ //kw40z_device.SendPressure(pressure); /*Send Mag,Accel,Gyro Data. kw40z_device.SendGyro(x,y,z); kw40z_device.SendAccel(z,x,y); kw40z_device.SendMag(y,z,x);*/ Thread::wait(1000); } } void UpdateSensorData(void) { testsignal+=1; /*battery -= 5; if(battery < 5) battery = 100; light += 20; if(light > 100) light = 0; humidity += 500; if(humidity > 8000) humidity = 2000; temperature -= 200; if(temperature < 200) temperature = 4200; pressure += 300; if(pressure > 10300) pressure = 7500; x += 1400; y -= 2300; z += 1700;*/ } void interruptHandlerQueued() { MAX30101::InterruptBitField_u interruptStatus; hr.getInterruptStatus(interruptStatus); // printf("Interrupt Status: 0x%02x\r\n", interruptStatus.all); if (interruptStatus.bits.pwr_rdy == 0x1) { // printf("Powered on\r\n"); // Soft reset MAX30101::ModeConfiguration_u modeConf; modeConf.all = 0; modeConf.bits.reset = 1; hr.setModeConfiguration(modeConf); wait(0.01); // Configure FIFO MAX30101::FIFO_Configuration_u fifoConf; hr.getFIFOConfiguration(fifoConf); // pc.printf("FIFO Configuration: 0x%02x\r\n", fifoConf.all); // Set LED power hr.setLEDPulseAmplitude(MAX30101::LED1_PA, 0x0C); hr.setLEDPulseAmplitude(MAX30101::ProxModeLED_PA, 0x19); // pc.printf("LED set\r\n"); MAX30101::SpO2Configuration_u spo2Conf; hr.getSpO2Configuration(spo2Conf); spo2Conf.bits.led_pw = MAX30101::PW_1; spo2Conf.bits.spo2_sr = MAX30101::SR_100_Hz; hr.setSpO2Configuration(spo2Conf); hr.getSpO2Configuration(spo2Conf); // pc.printf("SpO2 Configuration: 0x%02x\r\n", spo2Conf.all); // Proximity settings hr.setProxIntThreshold(0x14); // Enable HR mode modeConf.all = 0; modeConf.bits.mode = MAX30101::HeartRateMode; hr.setModeConfiguration(modeConf); // printf("Mode set\r\n"); } if (interruptStatus.bits.prox_int == 0x1) { // printf("Proximity Triggered, entered HR Mode."); } if (interruptStatus.bits.ppg_rdy == 0x1) { // printf("PPG Ready.\r\n"); mask_ppg = 1; } if (interruptStatus.bits.a_full == 0x1) { // printf("FIFO Almost Full.\r\n"); uint8_t data[FIFO_DATA_MAX]; uint16_t readBytes = 0; hr.readFIFO(MAX30101::OneLedChannel, data, readBytes); //printf("data length: %u \r\n",readBytes); //printf("data length: %u \r\n",data); for (uint16_t i = 0; i < readBytes; i += 3) { uint8_t sample[4] = {0}; sample[0] = data[i + 2]; sample[1] = data[i + 1]; sample[2] = data[i]; num = *(uint32_t *) sample; if (num < 310000){ realHeartRate = 0; printf("keep closer to your hand \r\n"); } else { //realHeartRate = 65; realHeartRate = (num - 310000)/100; if (realHeartRate >45){ printf("%d\r\n", realHeartRate); } } //printf("%u\r\n", num); } } interruptStatus.all = 0xFF; if (mask_ppg == 1) { interruptStatus.bits.ppg_rdy = 0; } hr.enableInterrupts(interruptStatus); } void interruptHandler() { evqueue.call(interruptHandlerQueued); } // main() runs in its own thread in the OS int main() { // printf("Hello world.\r\n"); t.start(callback(&evqueue, &EventQueue::dispatch_forever)); kw40z_device.attach_buttonLeft(&ButtonLeft); kw40z_device.attach_buttonRight(&ButtonRight); pwr1v8 = 1; pwr3v3b = 1; pwr15v = 0; maximInterrupt.fall(interruptHandler); maximInterrupt.enable_irq(); MAX30101::InterruptBitField_u interruptStatus; interruptStatus.all = 0xFF; hr.enableInterrupts(interruptStatus); char text[20]; /* Text Buffer */ oled_text_properties_t textProperties = {0}; oled.GetTextProperties(&textProperties); /* Turn on the backlight of the OLED Display */ oled.DimScreenON(); /* Fills the screen with solid black */ oled.FillScreen(COLOR_BLACK); strcpy((char *) text, "Heart Rate:"); oled.Label((uint8_t *)text,7,0); strcpy((char *) text, "Calorie/Hr:"); oled.Label((uint8_t *)text,7,40); //dynamic text setup textProperties.fontColor = COLOR_WHITE; textProperties.alignParam = OLED_TEXT_ALIGN_RIGHT; oled.SetTextProperties(&textProperties); txThread.start(txTask); while (true) { /* Format the time reading */ sprintf(text,"%d",realHeartRate); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text,55,15,35,15); //Increase textbox for more digits if (realHeartRate > 45){ calorie = (-55.1 + (0.6309*realHeartRate)+(0.1988*75)+(0.2017*25))*60/4.184 ; sprintf(text,"%0.2f",calorie); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text,55,55,35,15); //Increase textbox for more digits } else{ sprintf(text,"wait HR"); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text,55,55,35,15); } Thread::wait(1000); } return 0; }