KY-021 MINI Magnetic Reed Switch Sensor Module




Arduino Magnetic Reed Switch Module Keyes KY-021. A reed switch is a magnetic sensor that is normally open and gets closed when exposed to a magnetic field. The KY-021 mini magnetic reed switch module consists of a 10kΩ resistor and a small reed switch actuated by a magnetic field, commonly used in mechanical systems as proximity sensors. Compatible with popular electronic platforms like Arduino, Teensy, Raspberry Pi and ESP8266.

  • Operating Voltage: 3.3V to 5V
  • Output Type: Digital

MAKE iT WORK Basic Instruction Kit

Check MAKE iT WORK - KY-021 Mini Reed Switch Module for basic instruction.