[Hack a Day] 2 New Entries: LED menorahs

LED menorahs


4320_d

We’re barely past Halloween and people are already working on their next LED based holiday decorations. For Hanukkah, Gizmodo pointed out the PCB menorah pictured above. It uses a set of DIP switches to control which LEDs are lit. A couple years ago, Evil Mad Scientist Laboratories put together a tutorial for building a more minimal LED menorah. Each of the nine LEDs are soldered directly to the legs of an ATtiny2313 microcontroller. Every time you power up the device an additional LED is lit. [Ori] liked the project and decided to take a slightly different approach. He used an LM3914 DIP18 LED bar driver. A potentiometer controls how many of the LEDs are illuminated.

      

Android executes everything you type


g1

This is one of the more bizarre bugs we’ve ever heard. The T-Mobile G1 has an open root shell that interprets everything you type as a command. It was discovered when a user just happened to type the word ‘reboot’ in a conversation and the phone immediately rebooted. A patch has already been rolled out to fix this issue. It also buttons up the earlier telnetd SUID problem.

[photo: tnkgrl]

      

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