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@elktros
Created November 8, 2017 05:02
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Heartbeat Sensor using Arduino
#include <LiquidCrystal.h>
LiquidCrystal lcd(6, 5, 3, 2, 1, 0);
int data=A0;
int start=7;
int count=0;
unsigned long temp=0;
byte customChar1[8] = {0b00000,0b00000,0b00011,0b00111,0b01111,0b01111,0b01111,0b01111};
byte customChar2[8] = {0b00000,0b11000,0b11100,0b11110,0b11111,0b11111,0b11111,0b11111};
byte customChar3[8] = {0b00000,0b00011,0b00111,0b01111,0b11111,0b11111,0b11111,0b11111};
byte customChar4[8] = {0b00000,0b10000,0b11000,0b11100,0b11110,0b11110,0b11110,0b11110};
byte customChar5[8] = {0b00111,0b00011,0b00001,0b00000,0b00000,0b00000,0b00000,0b00000};
byte customChar6[8] = {0b11111,0b11111,0b11111,0b11111,0b01111,0b00111,0b00011,0b00001};
byte customChar7[8] = {0b11111,0b11111,0b11111,0b11111,0b11110,0b11100,0b11000,0b10000};
byte customChar8[8] = {0b11100,0b11000,0b10000,0b00000,0b00000,0b00000,0b00000,0b00000};
void setup()
{
lcd.begin(16, 2);
lcd.createChar(1, customChar1);
lcd.createChar(2, customChar2);
lcd.createChar(3, customChar3);
lcd.createChar(4, customChar4);
lcd.createChar(5, customChar5);
lcd.createChar(6, customChar6);
lcd.createChar(7, customChar7);
lcd.createChar(8, customChar8);
pinMode(data,INPUT);
pinMode(start,INPUT_PULLUP);
}
void loop()
{
lcd.setCursor(0, 0);
lcd.print("Place The Finger");
lcd.setCursor(0, 1);
lcd.print("And Press Start");
while(digitalRead(start)>0);
lcd.clear();
temp=millis();
while(millis()<(temp+10000))
{
if(analogRead(data)<100)
{
count=count+1;
lcd.setCursor(6, 0);
lcd.write(byte(1));
lcd.setCursor(7, 0);
lcd.write(byte(2));
lcd.setCursor(8, 0);
lcd.write(byte(3));
lcd.setCursor(9, 0);
lcd.write(byte(4));
lcd.setCursor(6, 1);
lcd.write(byte(5));
lcd.setCursor(7, 1);
lcd.write(byte(6));
lcd.setCursor(8, 1);
lcd.write(byte(7));
lcd.setCursor(9, 1);
lcd.write(byte(8));
while(analogRead(data)<100);
lcd.clear();
}
}
lcd.clear();
lcd.setCursor(0, 0);
count=count*6;
lcd.setCursor(2, 0);
lcd.write(byte(1));
lcd.setCursor(3, 0);
lcd.write(byte(2));
lcd.setCursor(4, 0);
lcd.write(byte(3));
lcd.setCursor(5, 0);
lcd.write(byte(4));
lcd.setCursor(2, 1);
lcd.write(byte(5));
lcd.setCursor(3, 1);
lcd.write(byte(6));
lcd.setCursor(4, 1);
lcd.write(byte(7));
lcd.setCursor(5, 1);
lcd.write(byte(8));
lcd.setCursor(7, 1);
lcd.print(count);
lcd.print(" BPM");
temp=0;
while(1);
}
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