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For those that have them, the ATC2K action camera is a decent little piece of equipment. It is waterproof and can save video for roughly 30 minutes on a flash card. The viewing angle of the lens leaves something to be desired though. This has been remedied in newer models. [raalst] shows us how to modify the ATC2K to install a new, wider angle lens, while retaining the waterproof seal. He also takes us through a necessary mod to ensure clear video under water since the new lens was not initially intended for it. Just in case you are curious, he’s using his for hobby radio controlled submarine dives.
[Thanh] has spent some time flying quad-copters measuring 12” motor to motor, but wanted to build something smaller so that he could fly indoors. Instead of building just one, he actually constructed five different quad-copters, with motor to motor arm spans ranging from 10” to just 3”.
In his forum post, he highlights the construction process of his 10” copter, covering each step in great detail. While he breaks down his component lists into two categories based on motor to motor span, the one common item is the TI MSP430-based controller board. In particular, he used the eZ430-RF2500 development kit, which has the added benefit of a built-in 2.4 GHz wireless radio. His quad-copter uses a Wii Motion Plus gyro board to help keep it aloft, as well a handful of other components which should be pretty familiar to most of our readers.
It’s great to see the construction broken down in such detail, we imagine it will be a great resource for anyone else looking to build their own quad-copter.
Stick around to see a quick video demonstration of his mini quad-copter in action.
[Thanks, Panikos]
UPDATE: His personal site has been updated.
It was with great sadness that we learned of [Mark Hoekstra]‘s death this morning. Earlier this week, the 34 year old hacker suffered a heart attack while riding his bicycle and was admitted to the hospital in a coma. [Markie] has been a Hack a Day commenter for much of our existence and a project contributor for nearly as long. It started simply with things like his bright green Hack a Day iPod sock and a hand crank iPod charger. He did an excellent job documenting his projects; many people had built IR cameras, but none were nearly as thorough as him. He also enjoyed sharing his love for obsolete hardware with the community. He built a wireless eMate, turned two Mac SE/30′s into audio viualizers, and wired shutter glasses to an old SGI.
It was always a treat to hear about [Mark]‘s latest project and he’ll be missed greatly.
[photo: Bram Belloni]
[JC] built himself a hexapod based on a project he found on the Internet. It worked fairly well, but was mechanically weak and prone to breakage. He set out to improve the design and came up with the unit seen above. It uses three servo motors to control the six legs, and walks quite well as seen in the quick clip after the break. It’s not quite as agile as the little acrobatic six-legger we saw yesterday, but the movement is quite pleasing and it’s capable of moving forward, backward, and turning. [JC's] post is four pages in all so don’t forget to seek out his links for the construction, linkage, and servo control pages to find concept drawings, cad designs, and his thoughts on the process.
Some of us need a little help keeping our green leafy friends happy. The Arduino Tux (translated) plant care system was built to make things a little easier.
The author had a broken tux toy laying around and wanted to do something fun with it. He cut a hole in the front to mount an LED matrix and connected it all to an Arduino. A couple of metal rods serve as a resistivity sensor in the plant’s dirt.
When you water the plant, tux flashes some hearts and a smiley face. As the moisture drops, tux gets less happy with the end result being a big frown.
These are the same people who brought you the Arduino Photolab.
[via Hack a Day Flickr Pool]