Virtualcogs Open Portable Gaming Platform


[David] thought you guys might like this – and I agree. It’s an open gaming platform built around a PSP LCD. It’s got all the basics, and it’s expandable. They’d like to put together an order for a run of boards, so let em know if you want one. If you’re lazy, here’s the specs:

  • MX21 ARM9 266MHz processor with 64MB SDRAM and 16 MB of FLASH
  • TFT LCD from the PSP (our thanks to Nathan at Sparkfun for helping us out with that)
  • stereo audio CODEC
  • stereo speakers
  • headphone jack
  • microphone
  • couple of joysticks
  • loads of buttons
  • battery pack
  • SD/MMC slot
  • expandable (can add GPS, bluetooth, accelerometers and gyros, etc…)

Most of the hardware is pretty decent, but the battery pack could use some help. Maybe a good surplus li-ion cell phone battery.

Real Life Avatar Style Video Recording


[salvo] enjoys searching for ‘untitled document’ with google. He ran across this crazy little project that just cracked me up. It’s a video camera rig that’s designed to simulate the video presentation of virtual reality games (everquest, etc.) and it actually does a decent job. It would probably get you arrested if you wore it in Boston…

Mini V3 Headphone Amp


Every so often, I like to check out the headphone amp scene at [headwize]. The headphone lovers there never seem to stop. This little amp is one of the latest creations. The latest is the mini v3 – it reflects a trend I’ve been seeing on homebrew hardware: SMD core chips and through hole components for support hardware. A 9 volt supplies power, and a pair of linear regulators. It’s a nice simple, solid design – and you’ve gotta love the thumb screws. (I’m not sure how a more efficient PWM regulated power source would affect the audio output)

Acoustically Generated Holograms


I found this on [hackedgadgets] and checked out the paper describing the project. I’m not sure if it will generate any truly usable graphics any time soon, but the technology is pretty interesting. It combines six video channels and uses acoustic frequencies and tiny but simple looking transducers to vibrate the crystal that channels a laser to generate the hologram. (If I read that paper correctly) Surprisingly, a single nvidia chip generates all six channels for the system. Annoyingly, there’s a lack of info on MITs site, but there’s a nice group of images under the multimedia link of this article.

Xbox 360 Joystick Retrofit


Arcade joystick retrofits aren’t usually that interesting. This one sent in by [Jock] caught my eye for one reason – using those cheap RadioShack reed switch relays to adapt the joystick output to the 360 controllers Dpad. Personally, I think I would have thrown some opto-isolators at it – but the one’s that RS (sometimes) has are pretty crappy.