433MHz transmitter/receiver woes

Using Arduino Networking, Protocols, and Devices
1

Hey guys,

I'm hoping to get some help with 433mhz transmitter/receiver devices like this one

I'm trying to decode my garage door remote signal but have run in to some troubles.
I've read through the forums and tried all suggestions including:

I've also tried a few other things like hooking up the receiver pin to a scope which reveals a ton of noise on the channel. This can also be seen in the following video in which I've used one of the sanity check sketched from 433Utils which basically ties the light on D13 to the state of the 433MHz receiver pin

As you can see by the rapidly blinking light there is a fair bit of noise on the channel.

I'm confident the garage door remote is at the right frequency as my receiver since the D13 led blinks when I press the button, as can be seen in the following video.

I'm stuck at this point and don't know what else to try.
I've got another transmitter/receiver pair in the mail so I'll try this again when it comes in to make sure it's not the device.

Any ideas would be appreciated.
Thanks.

2

For obvious reasons all modern garage door openers use encrypted, rolling code transmissions and are extremely difficult to decode or duplicate.

Your best option is to interface your own receiver to one of the manual garage door switches, and create your own remote. But unless you also use rolling code, encrypted transmissions, anyone with a little knowledge could easily duplicate the remote and get into your garage.

3

Ah damn I had never considered that! I was under the impression this was only something keyless entry systems for cars used.

I might try to buy a new remote and go with your suggestion