DIY altimeter extra


Last year a friend of mine was kind enough to watch me jump out of a perfectly good airplane. While pondering that incredible adrinaline rush, I thought it was time for an altimeter hacking extra. (Don’t answer your phone for at least 12 hours after the jump or you might accidentally tell your mom…. Even if you’re 30 and in another state, you’ll probably get yelled at.)

The 2004 KAP rig on this page caught my eye. It features a small dongle that logs altimeter data when the shutter is activated on the camera. Schematics are in the pdf. The rest of the setups are pretty freakin’ impressive too.

Of course, there’s the classic model rocket altimeter project. If you’d prefer to leave off the cost of a basic stamp, try the more recently updated recording altimeter. It’s got a nice low parts count.

If you want something a bit more versatile, check out this RF transmitting altimeter. It’s still in progress, but it’s getting a thorough writeup as it progresses.

We’ve seen them before, but I’d be remiss not to mention a GPS data logger. (I took my old garmin foretrex on my skydive, but didn’t have a decent signal until I was out of the plane.

If someone finds a diy audible altimeter, let me know.

ToorCon Seattle Beta


I’m attending ToorCon Seattle Beta this weekend. Today was a single track made up of 20 minute talks. ToorCon is really best in breed when it comes to hacker conferences. Highlights follow:

Beetle, from the Shmoo, opened the conference with WiFight Club. Of course, by me mentioning that, you’re officially in WiFight Club. This will eventually become a competition that is summarized best with the phrase: “Faraday Cage Match”. He mentioned interesting projects like GNU Radio and others. I really want to see where this goes. It looks like a lot of fun.

Rodney Thayer’s talk on credit cards boiled down to this: everyone worries about internet security when doing online transactions, but that doesn’t really matter since the credit card company security policies are garbage.

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