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Wyvern quadcopter

Wyvern quadcopter

[William Etter] and his classmates built a quadcopter as a class project. We love the details of these builds and they came through with some thorough documentation.

Via Hack a Day | Posted on 2010.05.11 at 03:36

CPU as a heat sink

CPU as a heat sink

We’ve noticed that wireless routers pump out a bunch of heat. [Jernej Kranjec] wanted to make sure that he didn’t fry it once he started adding more load to his router using OpenWRT.

Via Hack a Day | Posted on 2010.05.11 at 03:17

Hack Your Crystal’s Frequency

Hack Your Crystal’s Frequency

[Drone] tipped us off about [Joachim]‘s efforts to alter a crystal’s frequency. Through a process called penning, a crystal’s resonant frequency is lowered by painting the crystal with an indelible ink marker.

Via Hack a Day | Posted on 2010.05.11 at 02:58

PC side IM-ME hacks

PC side IM-ME hacks

[Paul Klemstine] is working on some PC-side software hacks for the IM-ME. We’ve seen a lot of hardware hacks for this device, such as controlling the display, firmware flashing, and using it as a spectrum analyzer, but if you don’t want to alter the device right away you can try [Paul's] collection of hacks.

Via Hack a Day | Posted on 2010.05.11 at 02:25

RF transmission in the 9 KHz band

RF transmission in the 9 KHz band

[W1VLF] is on a quest to communicate over long distances with a 9 kilohertz transmitter. He built this giant coil with that in mind. A round concrete form was used as a base and wound with magnet wire by hand.

Via Hack a Day | Posted on 2010.04.27 at 16:45

WiFi and Bluetooth sniffing rifle

WiFi and Bluetooth sniffing rifle

[. ronin] built an all-in-one WiFi and Bluetooth sniffer. He used a Nerf rifle as a base and added two Pringles cantennas, a tablet PC, and other various bits to tie it all together.

Via Hack a Day | Posted on 2010.04.27 at 15:49

Building a window mounted antenna for your car

Building a window mounted antenna for your car

If you’re into ham radio and want it when you’re on the go give this antenna mount a try. [Cirictech] started with a design from the November 2009 issue of QST and added his own fabrication touches.

Via Hack a Day | Posted on 2010.04.21 at 23:52

Infrared transmission decoding

Infrared transmission decoding

Alright class, quiet down and open your books to the chapter on Manchester Encoding. [Brian J Hoskins] did just that when building this RC5 decoder.

Via Hack a Day | Posted on 2010.04.21 at 23:32

All about VLF radio

All about VLF radio

If you’re interested in learning about Very Low Frequency communications take a look at what Larry has to offer on his site. He’s put together a guide to VLF receivers that is short enough to read and clear enough to understand with rudimentary knowledge of circuits.

Via Hack a Day | Posted on 2010.04.21 at 23:05

Follow-up: Hacking OnStar

Reader [regulatre] has provided us with his furthering of hacking the OnStar system in GM cars.  Previously, we wrote about some initial attempts to gain access to the system that OnStar uses to monitor and control cars called GMLAN.

Via Hack a Day | Posted on 2010.03.18 at 11:23


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