Hello, I don't know if anyone can help me or not. I am building a loop pedal, I've built it on breadboard at the moment. this is what I've built. It only has one led on it at the moment, this is to show if the loop pedal is in record mode (when lit) and when in play mode (not lit).
I'm wanting to add a led for each track so when the track is recording it'll light up red and when the track is playing it'll light up green. Similar to the led on my current circuit but I'm wanting to use common cathodes for these ones.
I am wanting to build a circuit like this, but I only need 6 common cathodes with 4 push buttons ( a button for each track) http://forum.arduino.cc/index.php?topic=129431.45
please could someone help me out massively and show me how I would build this on breadboard with a layout image like on fritzing. Any help would be amazing. Thanks