The Mini Reed Switch Module uses a sensor which reacts to magnetic fields. Without a magnetic field the switch remains open, move magnet close and the switch will close.

We put the reed switch onto a module for your convenience to easily use in your projects where the change of a magnetic field needs to detected.

A Mini Reed Switch is often used in security - paired with a  magnet - to indicate if something has been opened (door, window, etc.).

Connect the minus to GND from your board and the middle pin to your source (e.g. 5V from your board). Read S pin (e.g. via digital pin on your Arduino) to detect the open/close state of the switch.

This Mini Reed Switch Module contains an onboard 10k Ohm Resistor, so there is need for any additional components to use it.

SPECIFICATION

• 3-5.5V DC
• Bolt holes
• Three pins (GND (-), VCC (middle pin), Sensor (S))

EXAMPLES

For Arduino see here