Hey there. Long time no posting.
I want to control RGB LED light strings with my Arduino, of course using PWM. Problem is I don't know how to increase the output power of the Arduino to be able to power multiple runs of RGB LED strips.
These are the cheap LED strips from China that are 5M long. I want to have up to 20 of them.
I know Relays don't work. Can someone point me to what does work? Cheaper the better.
Also, along the same lines, i'd like to eventually run some NEMA 23 stepper motors from an Arduino so if I can use the same "technology" to run those as I can for the light strings, that would be cool.