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.
- 3-5.5V DC
- Bolt holes
- Three pins (GND (-), VCC (middle pin), Sensor (S))
For Arduino see here