Open garage door indicator

posted Sep 26th 2009 6:09pm by Jakob Griffith
filed under: home hacks, led hacks

FTMF3EVFZQ1FVJ3.MEDIUM

How many times has this one happened to you? Just coming home from work, you walk in from the garage, settle down, and pick up the newspaper. But wait, did you remember to shut the garage door?

Presenting the open garage door indicator. [xjc2010] chose the simplest circuit possible, using only a switch to turn on and off the setup, an LED acting as the signal, and a transformer/resistor combo to drop the voltage to an acceptable LED friendly 2.8 volts. We don’t like how he strung wire all over his house to place the beacon, and would have preferred something wireless in one way or another, but for under 6 bucks this gets the job done quickly and cheaply. Now if only we could get it to remind us if we turned off the oven while on vacation.

[thanks Craig]

MioPocket 2.0 Release 27

posted Sep 5th 2008 1:30pm by Adam Harris
filed under: gps hacks, handhelds hacks, news

Miopocket Screenshot

GpsPasSion forum member [Ospray] has released a new version of MioPocket. For those of you that don’t know, MioPocket is a great unlock kit for GPS units. It basically unlocks the hidden potential of your GPS so you can access the built-in functionality of a PDA as well as retaining the GPS software. This means you can play music, watch video, play games, read and write office documents, and many other things with the once single-purpose device.

Originally written for Mio brand devices, it has been successfully used on a couple other brands. We’ve seen it on a Navigon 2100 using a modified install. This software can run directly off the SD card, so it can easily be updated or removed.

The fun part is fiddling with the scripts to get the newest releases to work on the Navigon and Magellan devices.




Simple fan controller

posted Apr 24th 2008 9:35pm by Will O'Brien
filed under: misc hacks


When I built my LumenLab projector, I used a thermal switch to run the fan. This simple control circuit looks like a nice alternative. The circuit is a simple adjustable temperature triggered Fet. If you know the resistance needed, you can replace the potentiometer with a cheap resistor. (You’ll want to use a DC fan)

Hack a Day serves up fresh hacks each day, every day from around the web and a special How-To hack each week.

Send us your hacks