Hi and welcome back to “12 Days of Arduino”, Day 3! On the third day of Arduino Kevin gave to thee:

Arduino Piano/Keyboard Pitch Shifter

Sort of like a whammy bar! Makes a fantastic 8 bit horror effect!

If you read from day 1 – (Arduino Morse Code Keyer) you can see the simple progression that lead to this point.

Project requires
–Arduino Uno
–Active buzzer
–4x button touch switch
-RGB LED
-220 ohm resistor
-4x 10k ohm resistor
-220 ohm resistor
-Jumper wires
-Ball switch
Continue reading