[adafruit] wrote in to let us know that the Tweet-a-Watt is now available in kit form. While the plans have been available for a while, a kit is a welcomed addition. The kit doesn’t include the Kill-a-Watt monitor, but rather the XBee adapters and parts necessary to make it talk to your Arduino or computer. The kit is $90, while the Kill-a-Watt can be found for roughly $20.
[oomlout] has released this Opensource robotic arm. It is 5 axis, using cheap hobby servos. The total cost, including having it cut at thingaiverse.com is roughly $150. The plans include all the pieces, down to the servo controller. This means that you’ll have to supply your own microcontroller and programming. They do state “We can guarantee it is loads of fun to play with, and we think potentially very useful for more serious pursuits.” and we would like to test that guarantee. We’ve been keeping an eye out for this ever since the servo switch assemblies.
[via Hack a Day flickr pool]
Since we rely on you, our loyal readers, to supply the tasty projects that we thrive upon, we felt this writeup about how to photograph LEDs could be very useful. Photographing them can be quite difficult at times, they throw off the standard settings on your camera pretty easily. EMSL takes us through all the settings for best results. While you’re brushing up on your photography skills, you might want to consider making a flash ring, or some kind of macro lens. Now go take some awesome pictures and submit your projects.
[youtube=http://www.youtube.com/watch?v=vBRRR0BQyz0]
This year’s Google summer of code has been kicked off with a fairly substantial amount of participants. You can still submit an application until April 3rd, to join the roughly 2,500 “graduates”. For those who don’t know what it is, the Google summer of code pairs developing programmers with open source projects and funding. It’s a great program, resulting in advances in some programs that we follow. We’ve talked about several of the groups that will be participating this year, such as the NUI group, rockbox, openstreetmap, and videoLan.
For those wanting to do some hacking or kernel debugging on their G1, [macpoddotnet] shows how to make a serial to USB cable. He gathered enough information on the Android platform google group to be able to piece something together. He’s using a USB 2.8V serial TTL level converter, and lists several available that should work. Looks like a pretty easy build.
[Mike] sent in this project. It’s a robot, designed to print on wooden coins while people watch. It was built to be in the iHobby Expo 08 in Chicago. The main movement is controlled by a BASIC Stamp2, while the ink jet system is run off of a Propeller. The entire system has 4 servos, 3 stepper motors, a DC motor, a hacked breast pump, an ink jet head, and 5 IR sensors. in case you missed that, it has a breast pump. We’re assuming that’s the part that picks up the wooden nickels with suction. He states that the project was meant to be entertaining, so there are lots of superfluous and inefficient actions as you can see in the video after the break. Great job [Mike].
Using an IR keyboard is now possible with a non jailbroken iPhone. The folks at perceptive development have developed a custom interface that connects through the headphone jack. They had already developed the serial modem, so this was just another step at connecting peripherals. With some smart and small packaging, this could be a nice attachment to keep around. You can see a video of it in action after the break.
