Arduino · PPGSimulated activity
OPTICAL PULSE · PPG
Sensor offbeats / min
0 s8 s
Simulated pulse — not a measurement of your heartbeat or a medical device.
Your observations
0 / 2Rest
—BPM
Activity
—BPM
Record rest and activity to compare the pulse.
Why does the pulse change?
The sensor shines light into the finger. Blood volume changes with each heartbeat, changing the reflected light. Active muscles need more oxygen, so the heart usually pumps faster; it gradually slows during recovery.