RF Transmitter for Joylit Controller?

Hardware
1

I bought an LED sign that uses a JOYLIT DC 5-36V 8A LED Dimmer Controller:

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It comes with a remote but I’d like to automate dimming the sign at night and making it brighter in the day using Home Assistant.

Does anyone know if there’s an RF transmitter I can buy that can talk to the Joylit controller?

2

It looks like a 2.4GHz band, from the logo on the case, which means the easy solutions for 433MHz is out.

You also need a transmitter or transceiver (transmitter and receiver in one package), which is harder to find, because there are many options for only receiver hardware.

I can not name a specific product though, but I hope the info might help your search a bit.