cell phone - Hack a Day

LED serial debugging for cell phone hacking

posted Jun 28th 2008 8:11am by Will O'Brien
filed under: cellphones hacks, classic hacks

[Barry] needed some way to get serial output to help debug his efforts to port Linux to the HTC TytnII (Windows mobile Pocket PC phone). He wrote some code to send serial output via one of the LEDs on the phone and rigged up an AVR to pic up the output and provide a USB interface to the computer. It runs at about 200bps – perfect for the quick debug session.

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Cell phone controlled door lock

posted Jul 17th 2007 2:22pm by Will O'Brien
filed under: cellphones hacks, misc hacks

Inspired by the knock to open hack, [ashish] put together a fairly simple DTMF decoder to control solenoid door unlocker and connected it to a Nokia 1100 cell phone. Call the phone, input the magic code, and the door unlocks.