[youtube=http://www.youtube.com/watch?v=bI06lujiD7E]
We’ve seen several different balancing bot styles over the past few years, but this one is new to us. The BallP, short for Ball inverted Pendulum, balances on top of a ball. We’re not sure what the advantages are to this layout though. Anyone care to enlighten us? Even though we hadn’t seen this style, it is apparently not new. The Ballbot has been around for a while and might seem even more impressive visually.
Tired of waiting for that Arduino sketch to upload? Find yourself limited by code space? Optiboot eases both of these problems. The package is an alternative bootloader that runs at a higher baud rate (115200 versus 57600) and it takes up 1.5 KB less space than the stock version. This means your sketches can be larger without upgrading to a beefier chip and they will take less time to upload, a lot less.
This fully compatible alternative to the Arduino bootloader requires an AVR ISP programmer to burn it to the chip on your Arduino. If you have an extra AVR lying around you could use the Arduino as a programmer and then physically swap the chips.
[Thanks Peter]
[Carmine] let us know about his team’s Automated Football Launcher. Their goal was to combine a football launcher with motion tracking, to allow a player to practice running and catching with the perfect throw. Unfortunately, and we’re not quite sure when, they ended up changing out the Jugs machine for an air cannon, which resulted in the use of foam footballs and the loss of throwing factors such as spiral. Somewhat defeating the purpose but we’ll let it slide; only because we know its going to be shooting potatoes eventually.
The project comes together by using two cameras giving distance and color tracking, combined with a rotating platform (and the best use of garden hose ever), an accurate set-top for their launcher. As seen in the video after the jump, it works out quite nicely. Continue reading “Perfect Spiral, Every Time”
At roughly $20 to build, this 9 digit pulse counter is an excellent example of home built tools. The builder, [Josh] found himself repairing a device and in need of a pulse counter. With the components cheaply available, he just built his own. He says that it has a few limitations, like display brightness, but overall it seems to do the job well. You can download the PCB from his site.
[via MakeZine]
The NY based hacker group named Ithacka has posted an interesting challenge. Buy a box of junk and build something with it following their guidelines. Document it and submit it for voting. There are some rules that allow you to use a few pieces that don’t come from the box, but the list is short. They don’t specify what the prize is, but entries must be submitted by August 1st.
On April first Sony rolled out new firmware for the PlayStation 3 that removed the ability to install Linux on the system by blocking a feature called OtherOS. Now a class action lawsuit has been filed against the company for its actions. It doesn’t take an attorney to figure out that they removed features that were a major selling point for the system. As mentioned in our previous article, the ability to use an exploit to access the hardware doesn’t mean that every user installing Linux on the system plans to do so. The suit asserts that users had no opportunity to negotiate the System Software Licensing Agreement which is only presented to a purchase after the sale is made. The lawsuit is availble in PDF from from IGN.
Who knows where this one will end up. The suit seeks an injunction against the removal of the OtherOS feature as well as compensatory damages. No matter what happens, we still think the removal was a bad move on Sony’s part.
[Thanks Shueddue]
[Gijs] cracked open his Game Boy and added some parts to give him more sound synthesis control. He uses Little Sound Dj (LSDj), a popular Game Boy program used to pump out those classic 8-bit sounds. The unit seen above and heard in the clip after the break has an added potentiometer and circuit board. He’s got a few other hacked Game Boys on his site as well, including an Arduino generating random music on the handheld.
