How to make a ratchet knob (unidirectional knob) with a broomstick and clothespins.
Category Archives: Howto
Bluetooth Keyboard Mouse Adapter (Arduino Minion McDonald’s Toy Hack)
Today we’re building an adapter that turns your favorite keyboard or mouse into a Bluetooth keyboard or mouse! It’s also a McDonald’s toy in disguise!
Arduino Power Cube (Lithium Battery and 5V Booster/Charger)
We’re salvaging old cellphone batteries to make a modular power cube for Arduino projects! This power cube makes use of a DC-DC Booster/Charger Module Board.
Cheap Arduino Bluetooth HID Module (HC05 with RN42 firmware hack)
Arduino makers and hobbyists will appreciate this one. Here’s how to turn a $3 Bluetooth module (HC-05 or HC-06) into an HID module (like the RN-42 or BlueSMiRF HID) with a firmware hack.
Sustainer Pickup DIY (Guitar Infinite Sustain System)
DIY a sustainer pickup for guitar that fits under the strings. This sustainer will enable any guitar to hold out a note infinitely long, achieving that rich, violin-like, sustain sound.
Turn cheap keyboard to MIDI PIANO! (Add MIDI port)
This is a tutorial for adding a MIDI port to a keyboard without one, so that you can use to interface with various programs such as FL Studio, Ableton Live, Cubase, Garage Band, Pro Tools, and more.
Polymer Clay Mini Game Controller (that actually works!)
This is a DIY guide to build a mini retro game controller out of polymer clay and an old keyboard!