Mystery Remote

ESPHome
1

I have this low profile ceiling fan:
https://a.co/d/jj84oR1

I have ESP32 operating a lot of my RF devices in my house, but this one has stumped me. I cannot figure out what frequency this remote is using. Next step is going to be to buy a RF detector, but before I do I want to see if anyone here can give me some clues as to how to figure this out. Here’s some pictures of the remote board

IMG_2943
IMG_29433024×4032 2.15 MB

IMG_2941
IMG_29413024×4032 2.12 MB

I searched for the part numbers, but turned up nothing. There is a small circuit board labeled 24.000 mhz, but I believe this is only indicative of the internal circuitry.

Any clues to help solve this mystery are appreciated

2

Pcb antenna looks like typical 2.4ghz.

3

I had this thought. The fan comes with an ‘app’ (doesn’t seem to work). The app asked to connect to Bluetooth. Is that what you are suggesting?

4

Under 2.4ghz it can be almost whatever. Try nRF-toolbox app to see if it broadcast something in bluetooth.