Heart Rate Monitor project

Description

the pulse rate sensor having a green color light on which we have to put our finger so that the light can incident on our skin. after that, the sensor read the value and sens this value to the Arduino. Arduino process on this value and after all the calculation it send the data to OLED display to show. OLED display is black and white display that can only show the white colour in the text as well as in the animation. so I am using them both. 128×64 pixel content in this tiny OLED. so it can show you the 128 characters at a time.

OLED display is more attractive than the old 16X2 display and having more pixels so that it can show more character than the LCD. and it can directly communicate with the I2C Protocol. so, it needs only two wires to communicate with the controller. but the drawback is the pixel size. the words displaying into the display are too short to see. Now talk about the Heart rate sensor. Heart rate sensor work on the optical principle. there are one light and one photodiode that sense the light intensity