We wanted to build something that would let the family make music at any moment‚ even with just a wave of their hands.

This is a pretty simple Infrared Harp. The sensors work like on/off switches to trigger various sounds when they are plugged into your computer's music program. With the MidiTron you can use any type of analog or digital input device, from temperature sensors to regular switches, to trigger your sounds. Get creative, it's really fun to think about all the things you could play!

MATERIALS:

* Epoxy
* 8 - 10 Infrared Sensors
* MidiTron
* 22- 24 gauge wire in red, black, and yellow
* Needle nose pliers
* MIDI to USB converter
* Two 4 - 6' aluminum u- channels
* Two 4 - 6' of 2 x 4 wood
* Large SPST On/Off Switch
* Wood Screws
* Drill
* Stepper drill bit for drilling through metal
* Zip ties (small)
* Zip tie mounts
* Wire Butt Connectors (small 26 - 24)
* Crimper for the connectors
* Multimeter for testing connections
* 9V 300mA power supply with connector
* Solderless Breadboard
* Box of jumper wires
* Jewelry screwdriver set

SOFTWARE:

* Music software like Garage Band
* MidiTron Software
* USB Driver software

The USB software driver should come with the MIDI to USB converter.

One of the most fun highlights of each 2.0 block party -- not to mention the technology makeovers themselves -- is getting to rock the wildly popular Guitar Hero video game on a chest-rattling, state-of-the-art system.

The only catch is, you have to play the notes they want you to play, in the order they want you to play 'em. Green, red, yellow, green, red, blue, yellow...sometimes you just want to escape those colored dots and do your own thing.

Well, now you can.

Programmer Josh Breckman hacked a Wii Guitar Hero guitar controller so it actually can be played like a real instrument, with 45 different available pitches.

While the actual creation of such an instrument is probably best left to those with Guru Lloyd-level computer skills, just watching Josh's video demo should bring a grin to anyone who's ever strapped on a plastic guitar and heard that jarring "SKROINK!" when you hit a bum note.

For those of you out there with real cyber-chops, Josh's directions are quoted below, courtesy of HackedGadgets.com:

“I combined: WiimoteLib and [Wrapper Library for Windows MIDI API] to handle midi stuff

past that, in the same bit of code that looks for nunchuck/classic controller stuff, i managed to figure out the byte/bit patterns of the different keys:

mWiimoteState.GuitarState.Whammy = (float)(buff[offset + 3] - 240) / 10; mWiimoteState.GuitarState.DownStrum = (buff[offset + 4] & 0×40) == 0; mWiimoteState.GuitarState.UpStrum = (buff[offset + 5] & 0×01) == 0; mWiimoteState.GuitarState.Note1 = (buff[offset + 5] & 0×10) == 0; mWiimoteState.GuitarState.Note2 = (buff[offset + 5] & 0×40) == 0; mWiimoteState.GuitarState.Note3 = (buff[offset + 5] & 0×08) == 0; mWiimoteState.GuitarState.Note4 = (buff[offset + 5] & 0×20) == 0; mWiimoteState.GuitarState.Note5 = (buff[offset + 5] & 0×80) == 0;
break;

From there, I had access to midi, what buttons were pressed, the wiimotelib already had the accelerometers rigged up, and all I had to do was put them all together :)”

Kudos, Josh...keep on rockin'!