Part of the pre-Vista hype was the idea of auxiliary displays. Laptop and desktop displays would provide additional information from your computer. The Vista SideShow feature hasn’t really caught on and the surplus hardware has started to drop in price. Take this PicoLCD for example: It’s a 4×20 character LCD with an IR receiver, multiple buttons, and a USB connection. The best part is: it has Linux drivers and an open source SDK. We know a lot of you like wiring up HD44780 based screens, but it’s hard to pass up a $50 prepackaged solution with such nice extras.
[Karsten Nohl] has recently joined the team on Flylogic’s blog. You may remember him as part of the team that reverse engineered the crypto in MiFare RFID chips. In his first post, he starts out with the basics of identifying logic cells. By studying the specific layout of the transistors you can reproduce the actual logic functions of the chip. The end of post holds a challenge for next week (pictured above). It has 34 transistors, 3 inputs, 2 outputs, and time variant behavior. Also, check out the Silicon Zoo which catalogs individual logic cells for identification.
This is unfortunately another story we missed out on while we were trying to keep things from burning down. We told you that [Jonathan Zdziarski] was going to demonstrate iPhone lock code bypassing in a webcast. The real surprise came when he pointed out that the iPhone takes a screenshot every time you use the home button. It does this so it can do the scaling animation. The image files are presumably deleted immediately, but as we’ve seen before it’s nearly impossible to guarantee deletion on a solid state device. There’s currently no way to disable this behavior. So, even privacy conscious people have no way to prevent their iPhone from filling up storage with screenshots of all their text message, email, and browsing activities. Hopefully Apple will address this problem just like they did with the previous secure erase issue. O’Reilly promises to publish the full webcast soon.
Spark Fun’s centerpiece at Maker Faire back in May was this LED coffee table. They just recently posted about how it was constructed. The surface is made from 64 8×8 RGB LED matrix boards totaling 4096 LEDs. The eight rows are connected to a custom router board so that one SPI line can control the entire display. The main microcontroller is an Olimex LPC2106 dev board. It runs a four player cooperative pong game where multiple balls are added over time. Each player gets a classic Atari paddle for control. You can see a video of the table running a screensaver after the break. Continue reading “LED coffee table”
[jon barber] pointed out another great project on the benheck forums that hasn’t gotten much attention. [techknott] built a wireless video interface for his Xbox 360. Think of it as a sort of video game thin client. It has the form-factor of a portable but doesn’t include the 360’s components. Instead it has a 1.2GHz A/V receiver and the guts of a wireless controller. The specific transmitter was chosen because it wouldn’t interfere with the 2.4GHz controller. The power supply is two 2600mAh batteries running at 7.5V with a built in charging circuit. The draw from the screen is ~500mA. The entire unit is 1 inch thick.
The iphone-dev team seems to still be on top of their game. Only a day after the iPhone 2.1 firmware update was released, they’ve updated both the PwnageTool and QuickPwn to deal with the release. They haven’t begun work on the iPod Touch 2G yet, since no one on the team has one yet.
We tend to agree with Engadget; jailbreaking is becoming less and less important to casual users. Now average users can buy an iPhone in their own country and run apps from the official store. A much different place than we were only a year ago. We know most of our audience are power users though and definitely want out of Apple’s walled garden, but that’s only a small percentage of iPhone users.