Hi! I’m completely new to Arduino and a novice programmer and have a project that for me, is rather ambitions.
I want to put together a music box made with sensors that triggers a midi signal to output to a midi synth or other device.
I have looked at the MIDI example on the Arduino.cc website and feel confident I can work with that.
My question is, how do I approach the need for multiple sensors?
So this is my question.
Let’s say I want to trigger basic on/off of a midi signal, (no velocity etc.)
The arduino Uno only has 12 inputs.
How would I set something up to be able to read let’s say, 20 different notes?
Do I need 20 inputs or a bigger board?
The music box will basically have either use photo resistors or switches to detect a colored peg. As the peg passes the photo resistor, it will either trigger the switch or in the case of the photo resistor, will detect a change in the resistance and as a result, trigger a midi signal to the synthesizer through the arduino.
Any ideas on how to approach this?