I want to replace an RGB LED controller (much like this one) with my own MCU.
Therefore, I think I need to know what voltage(s) the RGB LED controller outputs so I can make my MCU/component have the same output voltage(s). Then I can control the colours with the MCU.
The RGB LED controller has a 12V input, and a 12V + R + G + B output that connects to an LED driver unit.
Unfortunately, I currently only have a basic knowledge of circuits. I have a DC power supply and a multimeter, how would I go about finding out what voltage(s) the RGB LED controller outputs?