How should i wire this together?

Other Hardware General Electronics
1

Hey guys!

I live in a apparment block with a parking garage. The garage door is controlled by a 433mhz reciever/transmitter.
I got a reciever that i opened up (see the image) and have access to the button that will open the gate.

4250×2390 767 KB

Then i also bought a 433mhz sender/reciever with a relay. And this is where my question lies.

The relay has 3 outputs.
NO
NC
COM

See the specifications here: https://www.ebay.com/itm/Home-12V-10A-Wireless-Switch-Relay-1CH-1-2-3-Remote-Transmitter-Receiver-Module-/182969100436

I’ve attached a wire from NO and COM because it should be “normally open” (aka the button should not be pressed normally).
But when turning the relay on, it’s like it’s resetting itself. See the attached video for what I mean. Like clicking on and off (the relay).

What am I doing wrong, and how should i wire this up instead? I need to make a connection where the red line is on the image with the remote.

2

IS what you bought IDENTICAL to what is used by the door and remote control?

Paul

3

The receiver is 12V relay also, you have 5V

4

What exactly is the box you have photographed.
It looks more like a transmitter module than an actual door controller.
The button you are 'pressing' with the remote receiver unit is the button normally pressed to activate the transmitter.
The clicking you are hearing is from the relay in the little receiver module and its output will be either "continuous" or "pulsed" as configured during its set-up.

5

The item that you have opened up and photographed looks like the transmitter (as others have already said), and not the receiver.

The reason being that it looks portable and has a button to push to transmit.

The receiver is going to be fixed and wired into to the door motor controller. Isn't it?

I suggest that what is happening the way you have it connected is as follows:

  • You press the button on the"new" transmitter
  • this action transmits a signal
  • this signal is received by the "new" receiver
  • the relay turns on
  • the relay contact turns on the "original" transmitter
  • the "original" transmitter begins to transmit
  • there is some interaction between the two transmitters - both transmitting at the same time
  • the receiver is confused by the combination of both the transmitters on at the same time
  • the relay then switches off
  • the second transmitter stops
  • the receiver is no longer confused, now that only one transmitter is on
  • the relay closes again
  • second transmitter comes on again
  • this on/off cycle continues until you let go of the button