Pseudo-Medical Monitor Code HeartBeat STUFF
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#define HeartBeat_INT_PIN 4
static const unsigned char PROGMEM still_heart_logo_bmp[] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3C, 0x0F, 0x00, 0x00, 0x67, 0x18, 0xC0, 0x00, 0xC1, 0xB0, 0x60,
0x01, 0x80, 0xE0, 0x20, 0x01, 0x00, 0xC0, 0x30, 0x01, 0x00, 0x40, 0x10, 0x01, 0x00, 0x40, 0x10,
0x01, 0x04, 0x00, 0x10, 0x01, 0x04, 0x00, 0x10, 0x01, 0x0C, 0x00, 0x30, 0x00, 0x88, 0x80, 0x20,
0x00, 0x8B, 0x80, 0x40, 0x0F, 0xF3, 0x70, 0x80, 0x00, 0x13, 0x01, 0x80, 0x00, 0x19, 0x03, 0x00,
0x00, 0x0C, 0x06, 0x00, 0x00, 0x06, 0x0C, 0x00, 0x00, 0x03, 0x18, 0x00, 0x00, 0x01, 0xB0, 0x00,
0x00, 0x00, 0xE0, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const unsigned char PROGMEM beat_heart_logo_bmp[] =
{
0x01, 0xF0, 0x0F, 0x80, 0x06, 0x1C, 0x38, 0x60, 0x18, 0x06, 0x60, 0x18, 0x10, 0x01, 0x80, 0x08,
0x20, 0x01, 0x80, 0x04, 0x40, 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 0x02, 0xC0, 0x00, 0x08, 0x03,
0x80, 0x00, 0x08, 0x01, 0x80, 0x00, 0x18, 0x01, 0x80, 0x00, 0x1C, 0x01, 0x80, 0x00, 0x14, 0x00,
0x80, 0x00, 0x14, 0x00, 0x80, 0x00, 0x14, 0x00, 0x40, 0x10, 0x12, 0x00, 0x40, 0x10, 0x12, 0x00,
0x7E, 0x1F, 0x23, 0xFE, 0x03, 0x31, 0xA0, 0x04, 0x01, 0xA0, 0xA0, 0x0C, 0x00, 0xA0, 0xA0, 0x08,
0x00, 0x60, 0xE0, 0x10, 0x00, 0x20, 0x60, 0x20, 0x06, 0x00, 0x40, 0x60, 0x03, 0x00, 0x40, 0xC0,
0x01, 0x80, 0x01, 0x80, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x60, 0x06, 0x00, 0x00, 0x30, 0x0C, 0x00,
0x00, 0x08, 0x10, 0x00, 0x00, 0x06, 0x60, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x01, 0x80, 0x00
};
MAX30105 particleSensor;
int HeartBeat_x_offset = 0;
int HeartBeat_y_offset = 77;
int HeartBeat_x_width = 46;
int HeartBeat_y_height = 82;
int HeartBeat_initialize_screen = -1;
void HeartBeat_Reset()
{
HeartBeat_initialize_screen = -1;
}
bool setup_HeartBeat()
{
// Initialize sensor
if (!particleSensor.begin()) //Use default I2C port, 400kHz speed
{
Serial.println("MAX30105 was not found. Please check wiring/power. ");
return(false);
}
particleSensor.setup(); //Configure sensor with default settings
particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running
particleSensor.setPulseAmplitudeGreen(0); //Turn off Green LED
return(true);
}
void HeartBeat_Frame_Message(int message_left, int message_top)
{
DrawScreenText(message_left,message_top,"Place",COMMON_WHITE,COMMON_BLACK);
DrawScreenText(message_left,message_top+12,"your",COMMON_WHITE,COMMON_BLACK);
DrawScreenText(message_left,message_top+24,"finger",COMMON_WHITE,COMMON_BLACK);
DrawScreenText(message_left,message_top+36,"on",COMMON_WHITE,COMMON_BLACK);
DrawScreenText(message_left,message_top+48,"sensor",COMMON_WHITE,COMMON_BLACK);
}
void HeartBeat_Frame()
{
int box_top = HeartBeat_y_offset;
int box_left = HeartBeat_x_offset;
int box_width = HeartBeat_x_width;
int box_height = HeartBeat_y_height;
const byte RATE_SIZE = 6; //Increase this for more averaging. 4 is good.
byte rates[RATE_SIZE]; //Array of heart rates
long pulse_ir[RATE_SIZE];
long lastBeat = 0; //Time at which the last beat occurred
float beatsPerMinute;
int beatAvg = -1, lastAvg = 0;
long irAVG = 0;
byte rateSpot = 0;
bool beatDetect = false;
int latentBeatMax = 2;
int latentBeat = 0;
long irValue = 0;
long maxValue = 0;
long lastValue = 0;
long turnValue = 0;
long lastMax = 0;
int now_HeartBeat_Screen = 0;
int last_HeartBeat_Screen = -1;
unsigned long start_time;
unsigned long delta = 0;
int HeartBeat_detect_threshold = 7000;
// Clear rate calculating array
for(byte x = 0; x < RATE_SIZE ; ++x)
rates[x] = 0;
if (HeartBeat_initialize_screen == -1)
{
DrawScreenCompartment(box_left, box_top, box_width, box_height, COMMON_BLACK, COMMON_BLUE);
HeartBeat_Frame_Message(box_left + 2,box_top + 4);
HeartBeat_initialize_screen = 0;
for (byte x = 0 ; x < RATE_SIZE ; x++)
rates[x] = 0;
}
irValue = particleSensor.getIR();
while(irValue > HeartBeat_detect_threshold)
{
irValue = particleSensor.getIR(); //Reading the IR value it will permit us to know if there's a finger on the sensor or not
if (irValue > 7000)
{
//finger is detected
now_HeartBeat_Screen = 1;
if (irValue > maxValue)
maxValue = irValue;
// if ((irValue < maxValue - 200) && (irValue > lastValue + 20)) // alternate detect beat method
if (irValue < maxValue - 200)
{
beatDetect = true;
lastMax = maxValue;
maxValue = irValue;
turnValue = lastValue;
latentBeat = latentBeatMax;
}
lastValue = irValue;
if (beatDetect == true)
{
beatDetect = false;
//We sensed a beat!
delta = millis() - lastBeat; //Measure duration between two beats
lastBeat = millis();
beatsPerMinute = 60 / (delta / 1000.0); //Calculating the BPM
lastAvg = beatAvg;
if ((beatsPerMinute < 255.0) && (beatsPerMinute > 20.0)) //To calculate the average we strore some values (4) then do some math to calculate the average
{
rates[rateSpot++] = (byte)beatsPerMinute;
rateSpot %= RATE_SIZE; //Wrap variable
//Take average of readings
beatAvg = 0;
for (byte x = 0 ; x < RATE_SIZE ; x++)
beatAvg += rates[x];
beatAvg /= RATE_SIZE;
}
}
}
if (irValue < 7000)
{ //If no finger is detected it inform the user and put the average BPM to 0 or it will be stored for the next measure
now_HeartBeat_Screen = 0;
beatAvg=0;
lastAvg = 0;
for(byte x = 0; x < RATE_SIZE ; ++x)
rates[x] = 0;
}
switch(now_HeartBeat_Screen)
{
case 0:
if (last_HeartBeat_Screen != 0)
DrawScreenBlock(box_left+1,box_top+1,box_width-2,box_height-2,COMMON_BLACK);
HeartBeat_Frame_Message(box_left + 2,box_top + 4);
break;
case 1:
if (last_HeartBeat_Screen != 1)
DrawScreenBlock(box_left+1,box_top+1,32,32,COMMON_BLACK);
if (latentBeat == latentBeatMax)
{
DrawScreenBitmap(box_left + 6,box_top + 2,beat_heart_logo_bmp, 32, 32, COMMON_BLACK, COMMON_RED);
}
if (latentBeat == 0)
{
DrawScreenBitmap(box_left + 6,box_top + 2,still_heart_logo_bmp, 32, 32, COMMON_BLACK, COMMON_WHITE);
latentBeat = -1;
}
if (latentBeat > 0)
-- latentBeat;
if (lastAvg != beatAvg)
{
DrawScreenBlock(box_left+1,box_top+34,box_width-2,box_height-35,COMMON_BLACK);
DrawScreenText(box_left + 4, box_top + 34,"BPM",COMMON_WHITE,COMMON_BLACK);
DrawScreenText(box_left + 4, box_top + 44,String(beatAvg),COMMON_WHITE,COMMON_BLACK);
lastAvg = beatAvg;
}
break;
case 2:
DrawScreenBitmap(box_left + 6,box_top + 2,beat_heart_logo_bmp, 32, 32, COMMON_BLACK, COMMON_RED);
DrawScreenBlock(box_left+1,box_top+34,box_width-2,box_height-35,COMMON_BLACK);
DrawScreenText(box_left + 4, box_top + 34,"BPM",COMMON_WHITE,COMMON_BLACK);
DrawScreenText(box_left + 4, box_top + 44,String(beatAvg),COMMON_WHITE,COMMON_BLACK);
//lastAvg = beatAvg;
break;
case 3:
break;
}
last_HeartBeat_Screen = now_HeartBeat_Screen;
delay(90);
}
}
