Pulse Rate Sensor Using Arduino Components Arduino Heart Beat sensor module 16x2 LCD Push button Bread board Power Connecting wires Working of Heartbeat Monitor Project Working of this project is quite easy but a little calculation for calculating heart rate is required. There are several methods for calculating heart rate, but here we have read only five pulses. Then we have calculated total heart beat in a minute by applying the below formula: Five_pusle_time=time2-time1; Single_pulse_time= Five_pusle_time /5; rate=60000/ Single_pulse_time; where time1 is first pulse counter value time2 is list pulse counter value rate is final heart rate. When first pulse comes, we start counter by using timer counter function in arduino that is millis();. And take first pulse counter value form millis();. Then we wait for five pulses. After getting five pulses we again take counter value in time2 and then we substarct time1 from time2