Hi, I have a KRC4 Compact and want to send 'on / off' and 'change colour' instructions to a programmable LED.
Hoping for some advice as I am pretty lost with it all.
Arduino hardware seems pretty widely used in the use of programmable LEDs. I've read elsewhere on this forum that in order to send a signal from the KRC4 to Arduino I'd need an octocoupler to isolate the circuits. Can anyone verify this and / or recommend a suitable hardware setup?
I think the bigger issue is the colour changing aspect. can anyone simplify in programming terms how to send an output signal from the KRC4 that will turn the LED on and change it to a specific colour?