KY-039 Finger Heartbeat Detection Sensor DIY Drone Kit with WiFi and Camera The maximum voltage that the

The maximum voltage that the I/O pins can tolerate is 3

Built-in driver IC: Each LED integrates its own WS2812B controller - no external driver chips required

The Arduino Nano 33 BLE Sense Rev 2 is a compact

Standalone WiFi Control: The on-board ESP-01 connects directly to your WiFi router - no Arduino

KY-039 Finger Heartbeat Detection Sensor DIY Drone Kit with WiFi and Camera The maximum voltage that theKY 039 Finger Heartbeat Detection Sensor Quality electronics from The Engineer Store, Bengaluru. Fast shipping, 7 day warranty on manufacturing defects, expert support. Overview The KY 039 is a compact optical heartbeat detection sensor designed to measure pulse rates through finger placement. This versatile component is ideal for health monitoring applications, wearable devices, and educational electronics projects. The sensor uses infrared LED and