This article is based on another article that I published:

https://www.instructables.com/Radio-Bright-LED

The circuit on this article is a bit more complicated because it includes all of the five channels.

The transmitter range is a lot longer than 20 cm:

My friend published an article on this website:

https://hackaday.io/page/10304-antenna-remote-control

This article about an RF remote control kit from Oatley Electronics (https://oatleyelectronics.com).

The kit included a relay driver that you do not need for this circuit because you are not controlling high current loads.

I purchased the receiver board on eBay and borrowed the transmitter from my friend.

You must not forget that you need to active the board by pressing on the small button that you see on your right.

Side 2:

Step 1: Design the Circuit

I have drawn the circuit via online Easy EDA software:

The positive ends of each of the four LEDs must be connected to each of the four RX480E channel outputs. You need a separate resistor pair (two 1,000 ohm resistors in parallel) for the big blue LED because each of the four LEDs were pulling enough current from the 1 kohm resistor that the potential difference across the big LED was not sufficient enough for the big blue to turn ON at the same time with the small LED (refer to video - the big LED is ON because I did use a separate resistor pair for this LED).

Step 2: Make the Circuit

Making circuit requires basic soldering skills. I would not say that soldering this circuit is for beginners.

I did not have additional two 1 kohm (1,000 ohms) in stock. Thus I used two 1,200 ohms resistors. You do not need the high power resistors that I used for this circuit. I used what I had in stock.

Step 3: Testing

You can see the small LED turning ON in the close up testing videos:

Video 2:

Conclusion

This is a cheap solution for a remote controlled toy. You can connect the RX480E outputs to transistor inputs (BJT or MOSFETs) and make a motor move. Thus you can make toy:

- drones, 

- cars,

- planes,

- helicopters,

- or boats