Hi
I have a (Uno + 4 CH Relay Module and RF module) working fine between 2 Ardunio UNO's via RF,
On one end I would like to replace the 3 pieces with one but the new module has no instructions. It is a 4Channel RF module which usually gets Relay control via a small hand held 4 button remote like a car door unlock/starter.
What I have now and it works good.
What I want to replace it with which saves me the cost of an UNO and is smaller/simpler.
Because I don't have or want to use a button remote I want to simulate the button control using the remote UNO and RF. What code will send the same RF signal as the 4 buttons?
I bought the new module here. Thus the reason for no instructions.
link
Thanks for looking. I am sure someone else has already done this.