Are you into RC? Well, as you know, radio controllers could be quite expensive, especially if you want a lot of channels. A radio channel in RC is a unique sent signal sent corresponding to one of the controller joysticks, swithces or push buttons. In this case, How To Mechatronics YouTube channel
made another great project, a homemade Arduino based radio controller. Yes, it works with an Arduino and an NRF24 radio module that could give a range up to 700m in good conditions
He made the schematic, designed the layout and ordered the boards, which by the way, look very good in the shape of a radio controller.
To order your boards, use PCBWAY.com
and select your color.