Funkytown Keypad

thingiverse

My tribute to Towelie from South Parkhttp://southpark.wikia.com/wiki/Towel...)https://youtu.be/Sw5TfUi5rtQ This is basically a desk toy/paperweight that you can play tunes on using the keypad. If you play the right melody, it plays 4 different parts of the song Funkytown. I don't know if anyone but me is crazy enough to want this, but I'm posting all the files (design files too) in case they are interested. See it in action here:https://youtu.be/G70gXXTCBV4 Make sure to bring a towel! Print Settings Printer Brand: Prusa Printer: Prusa Mk2 Post-Printing Buttons: If you print the buttons in ABS, use acetone to solvent weld a button base onto each button. Otherwise use some CA (super) glue. Use a toothpick to put a tiny drop of white paint or whiteout into the button's digit. You can go over the black part of the button with a sharpie afterwards. Case: File anything that needs filing to make everything fit. A small screwdriver works good to cleanup the groove for the lid. Use a utitilty knife blade as a scraper for the edges (or use a deburring tool). Circuit: 1 - Arduino Pro Mini 1 - LM7805 regulator 1 - Piezo speaker 12 - tact buttons 1 - RGB LED (Common Cathode) 1 - Red LED (for power display) 1 - switch 3 - 4.7K ohm resistors for the keypad matrix 3 - 200 ohm resistors for RGB LED 1 - 9v battery 1 - 9v battery holder connectors, wire, etc... I'll draw up a schematic later, but it's basically something like this:https://randomnerdtutorials.com/diy-3x4-keypad-for-the-arduino-includes-schematics/