Hi all of you! :) My name's Mario and I just registered here since the problem I'm currently facing with my Arduino is driving me totally crazy! I've probably been researching every corner on the internet for the last days trying to find a solution and since I haven't been successful on that task I thought I register myself here and ask the pros :)
Let me explain! I've got 6 bars of acrylic... each stuffed with 12 orange LEDs on a PCB. Now the hard part comes up! Since weeks I'm trying to get them all controlled by the Arduino but I simply cannot manage to do that :( I guess I overestimated myself when it comes to electronic skills... How do I manage to have enough power to get all of them illumiated? I know I have to use a MOSFET but I cannot figure out how to wire it up. Can you guys help me out of that? As far as I know one of the outputs delivers around 40mA. Do I need some kind of external power supply like 12V to hook up too or can I just use the voltage the Arduino provides.
For further explanation: I would like to have some kind of fading glow in every acrylic bar. I'm trying to fade those multiple LEDs on every bar, independently, and at different rates. Guess PWM is the way to go...
Just to give you guys some kind of imagination in what direction I want this project to go :)
Thanks so much in advance and for your time you took reading this! With the best regards from the rainy and stormy south of Austria! Mario