
[Jason] sent in his low-tech, but interesting hack to allow the use of a DDR pad with his Gameboy advance to play PacMan. He took a $15 DDR pad, gutted it and wired directly to each of the foil pads that he wanted to use as buttons. For his project, he simply wired each pad directly to the DPad buttons on his Gameboy. It’s really a pre-manufactured version of [fbz] zone switches that she built for her backpack strap wifi detector.
By the way, [matt] over at Instructables wanted me to let you guys know that they’re giving away a $15k Versalaser.
IPhone GPS Module

The boys over at engadget put this up while I was working it over, but I’m still gonna hit it. [Curt] sent in the iPhone GPS he put together. He’s using a micro-controller to send the ground toggle handshake we mentioned in the iPhone serial tutorial, along with a small NMEA serial GPS module. After the handshake is completed, the controller hands over the serial port to the GPS output. (Since the handshake only needs the ground toggle, I’d guess that the module is connected to the TX/RX lines all the time.) By the way, the GPS looks like this SiRF II board sold by spark fun electronics.
IPod Transmitter Radio Modem
[Eric] sent in his iPod transmitter radio modem hack (Internet Archive). Given the short range of these FM modulators (and FCC rules) I’d call this an academic exercise. Combined with a few mods, it could be useful for bursting data from a micro-controller. (Think APRS)
Asus EeePC Bonus:About a week ago, [johnx] added (Internet Archive) a 16GB flash drive and a bluetooth adapter to his. Yesterday, [ta2cba] showed off how he squeezed (Internet Archive) a four port hub inside his – allowing a pair of devices to live in the extra min-ipcie bay and leave two ports to spare for later add-ons.
Autonomous Foosball! (plus)

[Shane ] sent in GATech’s senior design final projects, but his Autonomous single player foosball table is awesome. A Java app tracks player and ball via webcam. Then it acts as the opposite player by controlling servo actuated paddles. He’s copied his project to his personal server, just in case the class files get pulled next semester.
The course page is pretty ugly, but the project pages aren’t. It’s worth some time to check out the rest of the projects. The 2d iRobot based mapping system looks interesting, but lets be honest, the hand washing detector should be mandatory federal equipment at every fast food restaurant.
IPhone Serial Access Tutorial

[TheRain] sent in his tutorial on using the iPhone’s serial port. Apparently there’s a hardware trick required to enable two way communication. Whatever device is attached to the iPhone needs a secret handshake to get things talking both ways. Once the serial ground has been strobed high to low in the proper order, things will work like normal.
Hack-upgrade Your Magellan GPS

[dgoeken] sent in his Magellan 3100 hack. The device runs Windows CE 5.0, and mounts as a standard flash drive. Since everything is easily accessible, it’s just a matter of replacing and modifying the appropriate files. According to the GpsPassion message board, some are finding his guide useful for other models of Magellan GPS. So far he’s added a file manager, media player and upgraded the Points of Interest file. The site is slightly bandwidth challenged, so I’ve mirrored his hack process here.
Wiimote Projector Whiteboard
[Johnny Lee]’s back again with his Wiimote interactive whiteboard. Commercial versions of these things are expensive and heavy. His technique doesn’t even need a projector, just a computer, a Wiimote and a simple IR emitting pen. The pen is just a stylus with an infrared LED in the tip. Hit the video after the break, and you can grab the software from his site here.

