Bit crushing, rate reducing, weird noises: DIY 10-bit effects/guitar pedal with an Arduino for lo-fi DSP. Check out the demo video on Vimeo. ToolsArduino (Diecimila, or with auto-reset)Soldering ironHot glue gunWire cuttersDrill press or dremel MaterialsEnclosureSolderHot glueWirePerf boardAudio jacks (I used 1/8") (x2)Interface inputs, e.g.: 3 potentiometersInterface outputs, e.g.: 3 LEDs and 3 1