Part Number: AFE4900
1: how to do the off hand test for afe4900? Now in the process of infrared debugging, there will be a significant distance change waveform above 5cm from the hand, and the value will increase again within 5cm. Display the PPG value waveform of the beat, which is far away from the distance waveform. Compress the LED acquisition board, the value will not change.
2. Please explain the use logic of photodiode
