Hello everyone,
I'm making a measurement of heart rate using PPG. The LED will blink synchronously with the heart beat. The problem is, i want to make the first blink of led start the elapsed time and second blink of LED stop the elapsed time (using one LED). I can only make the blink of LED stop the time elapsed, but the reading is wrong due to delay..Can anyone help me please?
↧
LED Blink Elapsed Time
↧