The MIDIator is a new synth DIY project that turns a PS2 controller into a MIDI controller.

The current firmware supports remapping of the buttons to different notes or controllers. It’s based on a PIC microchip–full, explained source code and instructions for making modifications are supplied.

Features:

• Supports official PS2 controllers, cheap knockoffs and wireless controllers… and now the guitar hero controller, including the wammy bar and tilt sensor.
• Analog joysticks control pitch bend and several controllers (or whatever you want them to do)
• Three modes: buttons play MIDI notes, send controller messages (pressure sensitive buttons), or they toggle on / off controller messages so you can mute and unmute tracks.
• LCD and menu system for mode switching and remapping the buttons. See the instructions below for more info, but you basically press start, the button you want to remap, and then up/down arrows to remap.
• 3 LEDs for feedback: power, sign of life, and/or whatever else you want.
• Requires DC power supply 7-15 VDC, positive centered barrel plug.

The kit is $60. There are currently cash incentives available for people contributing new features to the project.