KY-021 Mini Magnetic Reed Switch Module for Arduino

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sherjaan
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KY-021 Mini Magnetic Reed Switch Module is a switch that is normally open and gets closed when exposed to a magnetic field, sending a digital signal.

 100.00

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KY-021 Mini Magnetic Reed Switch Module is a switch that is normally open and gets closed when exposed to a magnetic field, sending a digital signal. Commonly used in mechanical systems as proximity sensors. Compatible with Arduino, Raspberry Pi, ESP32 and other microcontrollers.

If a magnetic field is detected, the two input pins are short-circuited by pulling them towards each other. A reed module is a magnetic sensor that is normally open and get closed when exposed to a magnetic field. The module includes a 10 K Ohm resistor, so no additional parts needed.

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.

Reed switches are mechanical switches that are activated by a magnet when the magnetic field pulls the metallic switch contacts together.

KY-021 Mini Magnetic Reed Switch Module is a SPST switch with NO (Normally Open) contacts until a magnet comes into close proximity to the glass envelope and then the switch contacts are closed. The output is HIGH when the switch is open and is grounded (LOW) when the contacts are closed.

Real world uses include applications such as home security where a reed switch is placed in proximity to a magnet when a window is closed. If the window is opened, the magnet moves away from the switch that causes it to change states which can then be detected by an MCU.

There is a 3-pin header on the assembly. The ‘-‘ pin is connected to the ground end of the switch and the ‘S‘ output pin is connected to the other side of the switch.

Features: –

  • Outputs logic HIGH or LOW depending on if a magnetic field is near
  • Built-in 10K pull-up resistor
  • 3.3 and 5V compatible

KY-021 Mini Magnetic Reed Switch Module Specifications: –

  • Mini magnetic reed KY-021
  • 100% Brand new and high quality
  • Sensor module Provide the highest possible performance & reliability
  • Fixing bolt holes
  • Material: PCB
  • Working Voltage: 3.3V-5V
  • Can be used with duplicator, refrigerator, camera, water & gas meter.
  • Compatible with standard 2.54mm pins

Pin Description: –

  • -‘ = Ground
  • Center pin = No connection or Vcc
  • S = Signal output connects to digital input pin on MCU
Datasheet: –

cdn-3a4dd4ab.ozdisan.com/…/628120_208158.pdf

Package: –

1 x KY-021 Mini Magnetic Reed Switch Module

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  • Store Name: sherjaan
  • Vendor: sherjaan
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  • 5.00 5.00 rating from 2 reviews
KY-021 Mini Magnetic Reed Switch Module for Arduino
KY-021 Mini Magnetic Reed Switch Module for Arduino

 100.00

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