Replicating 433MHz RF

Hardware
1

Hi, I’ve got a dumb gate which opens with a 433MHz RF remote and I want to make it smarter and locally integrated to HA.
I’ve checked some options and it seems that Sonoff Bridge is the most popular option, the problem with this is the new version of the device doesn’t work as expected when flashed with Tasmota (New Sonoff RF Bridge Board Layout (R2 v2.2) · arendst/Tasmota · Discussion #13283 · GitHub). And from what I’ve read, without flashing, it doesn’t pick up all the devices, so there is no guarantee it will be able to pickup the remote, although I’m not sure if this is true or how common this is. Another disadvantage of not being able to flash is you need to use an app/cloud service.
There’s also a rfxcom USB transceiver which seems to satisfy all the conditions, but it’s way too expensive.

If all fails I have a spare remote and am thinking of just getting a switchbot button pusher, but what are other options to replicate the RF signal and have a HA integration?

2

Almost certain it uses rolling codes, and is impossible to clone/replicate.

3

Is there a sure way to check if it does use them or not?
It’s this remote: https://www.rogertechnology.it/en/solutions/categorie/radio-control-radio-receivers/transmitters/series-e80/e80tx52r2

4

It seems not

Radio for copy:    	Yes

But I doubt a Sonoff Rf Bridge will be able to replicate it.

You can still flash Tasmota on an Rf Bridge, just not the extra Portish firmware. Without the extra Portish firmware you are limited to what the native app/cloud service can do, except you don’t need the cloud any more.

1 Like
5

Ah got it. The Sonoff Bridge isn’t super expensive, so I might still give it a shot.
Are there any other options to replicate? Would a DIY solution like CC1101 hooked up to whatever controller (for example Wemos D1 mini esp32) work?

7

I know nothing about gates and how to control them. Is there any reason why a Broadlink RM4 Pro wouldn’t work? They’re super easy to set up these days.