DIY HACK – Wireless Keyless Entry using Relays

Keyless Entry


Here’s a very simple wireless keyless entry DIY using some relays and stuff, very similar to the Wiimote Door Unlocker.

The mechanism is simple enough, just a momentary button on the panel in my apartment, but the mess of wires in the wall is a little unsettling. I took some meter readings of the terminals and sorted out the door button wiring. You can see where the door button is soldered through the PCB, which made it easier to identify the proper terminals. This panel has a “Door”, “Talk” and “Listen” button. The “Door” button is normally-open and the circuit is about 22V. In the following steps we’re going to effectively bypass the button with our own circuit.


5 Responses to DIY HACK – Wireless Keyless Entry using Relays

  1. girrrrrrr2 says:

    this is alot safer that the wii door opener…

  2. Izl says:

    Can you use any kind?

  3. girrrrrrr2 says:

    any kind of what???

  4. Izl says:

    any kind of relay

  5. jman says:

    hey i was wondering if u could help me out i need to build something like this but needs a key pad and an lcd its to open the door to my room preferably on a cubloc console
    if you could help it would be great

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