MAX30101 Breakout - Heart Rate, Oximeter, Smoke SensorThe MAX30101 breakout is a sophisticated heart rate, oximeter, and smoke particle sensor, compatible with Raspberry Pi and Arduino. It features three LEDs (green, red, and infra red) and photodetectors to detect the amount of light reflected back. Using photoplethysmography (PPG), it can detect skin color changes with each heartbeat when pressed against a fingertip. This sensor can also detect particles in the air, like smoke, by measuring the light