Controlling a Maglock

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Controlling a maglock with RFID WIZ is easy! We can even use the Vin pin on the WIZ to power the maglock.

Mag Locks are generally available in 12VDC and 24VDC voltages. Make sure to use a maglock and power supply of the same voltage. Double check the current requirements of the lock and match the power supply appropriately.

Using the WIZ's power terminals

projects_Adafruit_Mag_Lock_Example-_Internal_Power.png

Follow the image above to make the following connections:

  • Vin to maglock + wire
  • C to maglock - wire
  • GND to NC

Note - this will only work with a 12V maglock.

This wiring will keep the maglock in the "locked" state until a trained card is placed in front of the reader board. 

Using an external power supply

projects_Adafruit_Mag_Lock_Example-_External_Power_(1).png

In some cases, you might want to use an external power supply. In this case, the onboard relay is acting as a switch to connect and disconnect this external power supply. This would be handy if you're powering a device that needs more than 12VDC. Follow the image above to make the following connections:

  • Maglock connects to +VDC on the power supply and C on the WIZ relay 
  • Connect NC on the WIZ relay to -VDC on the maglock

This will work with either a 12VDC or 24DC maglock. Make sure to match your power supply voltage to your maglock voltage.

This wiring will keep the maglock in the "locked" state until a trained card is placed in front of the reader board. 

The onboard relay can switch up to 10A 250V. However, we recommend using caution if you are using more than 24VDC or any AC voltage source
 Switching Modes Controlling a Power Switch 

This guide was first published on Mar 16, 2022. It was last updated on Mar 16, 2022.

This page (Controlling a Maglock) was last updated on Mar 04, 2022.

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