After constructing a solar panel and battery system to power a Raspberry Pi, I wanted to find a way to monitor how the battery and charger was performing.  There are several ways to accomplish this task, usually involving a voltage […]
While browsing one of our favorite electronic supplier’s web sites, we found that Ladyada sells a really interesting looking clock that uses a vacuum florescent display with eight glowing digits.  This clock proved to be an excellent soldering instruction project […]
One of my interests involves robotics, especially autonomous self-charging robotics. However, I realize most of my skills center around microprocessors, wood construction techniques, electronics, and some limited computer software skills. I knew I was missing the ability to make custom, […]
A few of the regular readers of this blog will know that I enjoy using a Web Energy Logger to track information about my home. Not only does this device track temperatures, but I also use it to interface with […]
A solar panel, battery, and Raspberry Pi
When I first heard about the Raspberry Pi, a $35 computer that can run Linux, I was mildly impressed. My first problem was that I did not understand Linux, and my second problem was that I couldn’t figure out a […]
A yogurt controller.
About a year ago, a friend mentioned how she made yogurt in a Crock-Pot slow cooker. It sounded impressive, and a good way to save on the cost of yogurt. We also figured that we could customize our yogurt recipe […]
Gripper for a robotic arm.
The motivating factor for the construction of this robotic arm originally came from a tour of the Volvo factory in Göteborg, Sweden. It was during this factory tour that I first saw the massive robotic arms used to pick up […]
A view of a lake from the edge of space.
Our PongSat ping pong ball was successfully flown on JP Aerospace flight “Away 47” on April 9, 2011 (it is the experiment on the far left above). It reached a height of 85,549 feet before the balloon carrying the ping […]
Our PongSat ball.
Today, our first PongSat experiment will be launched to the edge of space! JP Aerospace, a group located in California, offers to fly student experiments that fit inside of a ping pong ball to the edge of space, often over […]
It's bread!
Every once in a while, I find something that I haven’t used in a while and it suddenly catches my interest. In this case, it was an automatic bread maker (machine) which had been sitting in a cupboard unused for […]