dsdaf
Dependencies: FXOS8700 Hexi_KW40Z Hexi_OLED_SSD1351 MAX30101
Fork of HeartRate by
main.cpp
- Committer:
- catchvibes95
- Date:
- 2018-06-11
- Revision:
- 4:eb89733b8642
- Parent:
- 3:2e12e0cd1f26
File content as of revision 4:eb89733b8642:
#include "mbed.h" #include "mbed_events.h" #include "MAX30101.h" #include "Hexi_KW40Z.h" #include "Hexi_OLED_SSD1351.h" #include "OLED_types.h" #include "OpenSans_Font.h" #include "string.h" #include "FXOS8700.h" #define FIFO_DATA_MAX 288 #define LED_ON 0 #define LED_OFF 1 void UpdateSensorData(void); void StartHaptic(void); void StopHaptic(void const *n); void txTask(void); DigitalOut led1(LED_GREEN); // RGB LED FXOS8700 accel(PTC11, PTC10); DigitalOut pwr1v8(PTA29); DigitalOut pwr3v3b(PTC13); DigitalOut pwr15v(PTB12); I2C i2c0(PTB1, PTB0); InterruptIn maximInterrupt(PTB18); Serial pc(USBTX, USBRX); DigitalOut redLed(LED1,1); DigitalOut greenLed(LED2,1); DigitalOut blueLed(LED3,1); DigitalOut haptic(PTB9); RtosTimer hapticTimer(StopHaptic, osTimerOnce); /* Instantiate the Hexi KW40Z Driver (UART TX, UART RX) */ KW40Z kw40z_device(PTE24, PTE25); /* Instantiate the SSD1351 OLED Driver */ SSD1351 oled(PTB22,PTB21,PTC13,PTB20,PTE6, PTD15); /* (MOSI,SCLK,POWER,CS,RST,DC) */ /*Create a Thread to handle sending BLE Sensor Data */ Thread txThread; EventQueue evqueue(32 * EVENTS_EVENT_SIZE); Thread t; MAX30101 hr(i2c0); int mask_ppg = 0; uint32_t count = 0; char text[20]; uint8_t battery = 100; uint8_t light = 0; uint16_t humidity = 4500; uint16_t temperature = 2000; uint16_t pressure = 9000; uint16_t x = 0; uint16_t y = 5000; uint16_t z = 10000; // Variables float accel_data[3]; // Storage for the data from the sensor float accel_rms=0.0; // RMS value from the sensor float ax, ay, az; // Integer value from the sensor to be displayed const uint8_t *image1; // Pointer for the image1 to be displayed char text1[20]; // Text Buffer for dynamic value displayed char text2[20]; // Text Buffer for dynamic value displayed char text3[20]; // Text Buffer for dynamic value displayed float dot; float old_acc=0; float new_acc=0; float old_accx, old_accy, old_accz, old_dot=0.0; uint8_t StepNum = 0, StepNumber = 0; float filter_buf[75]; /****************************Call Back Functions*******************************/ float Filter(int s) { accel.acquire_accel_data_g(accel_data); float filter_sum = 0.0; //printf("%d\n\r",s); for(int i = 0; i < 75; i++) { filter_buf[i] = accel_data[s]; //printf("%4.2f\n\r",filter_buf[i]); filter_sum += filter_buf[i]; } return (float)(filter_sum / 75); } void ButtonRight(void) { StartHaptic(); kw40z_device.ToggleAdvertisementMode(); } void ButtonLeft(void) { StartHaptic(); kw40z_device.ToggleAdvertisementMode(); } void ButtonUp(void) { StartHaptic(); oled.FillScreen(COLOR_BLACK); /* Get OLED Class Default Text Properties */ oled_text_properties_t textProperties = {0}; oled.GetTextProperties(&textProperties); /* Change font color to Blue */ textProperties.fontColor = COLOR_BLUE; oled.SetTextProperties(&textProperties); strcpy((char *) text1,"Steps: "); oled.Label((uint8_t *)text1,3,45); sprintf(text1,"%d",StepNumber); /* Display time reading in 35px by 15px textbox at(x=55, y=40) */ oled.TextBox((uint8_t *)text1,70,45,20,15); //Increase textbox for more digits } void ButtonDown(void) { oled.FillScreen(COLOR_BLACK); /* Get OLED Class Default Text Properties */ oled_text_properties_t textProperties = {0}; oled.GetTextProperties(&textProperties); /* Change font color to Blue */ textProperties.fontColor = COLOR_BLUE; oled.SetTextProperties(&textProperties); /* Display Bluetooth Label at x=17,y=65 */ strcpy((char *) text,"BLUETOOTH"); oled.Label((uint8_t *)text,17,65); /* Change font color to white */ textProperties.fontColor = COLOR_WHITE; textProperties.alignParam = OLED_TEXT_ALIGN_CENTER; oled.SetTextProperties(&textProperties); /* Display Label at x=22,y=80 */ strcpy((char *) text,"Tap Below"); oled.Label((uint8_t *)text,22,80); } void PassKey(void) { StartHaptic(); strcpy((char *) text,"PAIR CODE"); oled.TextBox((uint8_t *)text,0,25,95,18); /* Display Bond Pass Key in a 95px by 18px textbox at x=0,y=40 */ sprintf(text,"%d", kw40z_device.GetPassKey()); oled.TextBox((uint8_t *)text,0,40,95,18); } // Key modification: use the alert functionality enabled by the host-ble interface // to define our own command. void AlertReceived(uint8_t *data, uint8_t length) { StartHaptic(); data[19] = 0; pc.printf("%s\n\r", data); // data (our command) must 20 bytes long. // CMD for turning on: 'ledonledonledonledon' if (data[4] == 'n') { greenLed = LED_ON; redLed = LED_ON; blueLed = LED_ON; pc.printf("on\n\r", data); // CMD for turning off: 'ledoffledoffledoffled' } else if (data[4] == 'f') { greenLed = LED_OFF; redLed = LED_OFF; blueLed = LED_OFF; pc.printf("off\n\r", data); } } 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); 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]; printf("%u\r\n", *(uint32_t *) sample); } } 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)); accel.accel_config(); /* Register callbacks to application functions */ kw40z_device.attach_buttonLeft(&ButtonLeft); kw40z_device.attach_buttonRight(&ButtonRight); kw40z_device.attach_buttonDown(&ButtonDown); kw40z_device.attach_buttonUp(&ButtonUp); kw40z_device.attach_passkey(&PassKey); kw40z_device.attach_alert(&AlertReceived); pc.printf("hello\n\r"); /* Turn on the backlight of the OLED Display */ oled.DimScreenON(); /* Fills the screen with solid black */ uint8_t prevLinkState = 0; uint8_t currLinkState = 0; pwr1v8 = 1; pwr3v3b = 1; pwr15v = 0; maximInterrupt.fall(interruptHandler); maximInterrupt.enable_irq(); MAX30101::InterruptBitField_u interruptStatus; interruptStatus.all = 0xFF; hr.enableInterrupts(interruptStatus); txThread.start(txTask); /*Start transmitting Sensor Tag Data */ while (true) { // blueLed = !kw40z_device.GetAdvertisementMode(); /*Indicate BLE Advertisment Mode*/ Thread::wait(50); } return 0; } void txTask(void){ while (true) { UpdateSensorData(); /*Notify Hexiwear App that it is running Sensor Tag mode*/ kw40z_device.SendSetApplicationMode(GUI_CURRENT_APP_SENSOR_TAG); /*The following is sending dummy data over BLE. Replace with real data*/ /*Send Battery Level for 20% */ kw40z_device.SendBatteryLevel(StepNumber); /*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(10); } } void UpdateSensorData(void) { accel.acquire_accel_data_g(accel_data); //printf("Accelerometer \tX-Axis %4.2f \tY-Axis %4.2f \tZ-Axis %4.2f \tRMS %4.2f\n\r",accel_data[0],accel_data[1],accel_data[2],accel_rms); ax = Filter(0); ay = Filter(1); az = Filter(2); wait(0.02); accel_rms = sqrt((ax*ax)+(ay*ay)+(az*az)/3); //printf("Accelerometer \tX-Axis %4.2f \tY-Axis %4.2f \tZ-Axis %4.2f \tRMS %4.2f\n\r",ax,ay,az,accel_rms); dot = (old_accx * ax)+(old_accy * ay)+(old_accz * az); old_acc = abs(sqrt(old_accx*old_accx+old_accy*old_accy+old_accz*old_accz)); new_acc = abs(sqrt(ax*ax+ay*ay+az*az)); //printf("\nOld Acceleration: %4.2f\n\r",old_acc); //printf("New Acceleration: %4.2f\n\r",new_acc); dot /= (old_acc * new_acc); //printf("\nDot: %4.2f\n\r",dot); //printf("Old Dot: %4.2f\n\r",old_dot); oled_text_properties_t textProperties = {0}; oled.GetTextProperties(&textProperties); /* Set text properties to white and right aligned for the dynamic text */ textProperties.fontColor = COLOR_BLUE; textProperties.alignParam = OLED_TEXT_ALIGN_LEFT; oled.SetTextProperties(&textProperties); /* Display Legends */ //strcpy((char *) text1,"Steps: "); //oled.Label((uint8_t *)text1,3,45); StepNum = StepNumber; if(abs(dot - old_dot) >= 0.05 && abs(dot - old_dot) <= 0.10) { StepNumber += 1; } //printf("%4.2f\n\r",dot); old_accx = ax; old_accy = ay; old_accz = az; old_dot = dot; Thread::wait(250); } void StartHaptic(void) { hapticTimer.start(50); haptic = 1; } void StopHaptic(void const *n) { haptic = 0; hapticTimer.stop(); }