Arduino Four-tone Multi-tones

I had reason recently to take a look at the ATmega32U4 microcontroller again.  This is used on the Arduino Leonardo and the Sparkfun Pro Micro and includes built-in USB functionality.  But it also has four hardware timers, so I thought I'd try to get them working with the three-timer Tone library. https://youtu.be/N0GdLr4a9hM Warning! I strongly … Continue reading Arduino Four-tone Multi-tones

PC USB to Arduino Serial MIDI – Part 2

Having built a stand-alone PC USB to Arduino Serial MIDI link, I thought it might also be useful to have a shield that allows a direct PC USB link to the Arduino too. Warning! I strongly recommend using an old or second hand keyboard for your MIDI experiments.  I am not responsible for any damage to … Continue reading PC USB to Arduino Serial MIDI – Part 2