I have a remote for my kitchen fan where I can turn on the fan and toggle to light.
This remote says on the back to be using 433MHz so I bought a receiver and transmitter for my Raspberry Pi in hopes of sniffing the signal and using the Pi to send the signal.
This didn't work at all as I couldn't sniff the signal. I couldn't see anything change in
piscope either when clicking the buttons.
So now my next project is to connect the remotes buttons to my Pi and simulate a push using the GPIO pins somehow.
I'll attach a picture of the remote at the bottom.
I'm only interested in toggle the light and that is the button furthest down on the PCB.
I'm kind of a noob when it comes to electronics so I have a couple of questions. The remote is powered by 1x AAA batteri thus using 1.5V What is the best way to power the remote in this situation? To use the battery or connect it to the Pi?
And how would I simulate a button press? I read somewhere about removing the button and solder on a optocoupler instead and use that to trigger a button press.
Are there any other methods that are more suitable?