The basic idea for this ring was to take a piece of a aluminum to make the ring out of, design it to fit the PCB and peltier, and create a heatsink that mounts on the other side of the peltier unit. Originally I had planed to make this a single finger ring but somewhere along the way my brain had fallen for a 2 finger design; It was much more practical, and surprisingly the PCB I made was the perfect size to fit across two fingers, leaving the heat sink on the side. Oddly enough I have a few ring sizing tools hanging around (thanks to my Grandpa having lots of random tools) so I measured the two fingers it would go on and away I went with a design. Continue reading →
The moment I discovered Peltier units I was amazed. First it was at the fact of how cold something could get just by applying a current. As I extended my research, my focus turned to the other effect – or SeeBeck Effect – as it’s called, which is the process or generating a current or voltage through temperature differentials. I know this technology has been used for some time, but the average person is not aware of what electricity, or energy for that matter, really is. Every time I show someone what the peltier unit is able to do just by putting my hand on it, they are amazed. I wanted to design something that would be able to find wasted heat energy from my body and transform it into usable electrical energy. A very simple proof of concept. Continue reading →
I have been meaning to make a self balancing robot for awhile so the other day I decided to see what I could do with some stuff I had laying around. I also had not seen overly small ones made so far so the real goal was to make it as small as possible. Basically I ended up with a Arduino Mini Pro with some components literally soldered to it. I found the wheels and motor from one of those small IR vehicles, cut it in half, and soldered the old battery mount to the lower part of the arduino. For the balancing part I need to note that I did not have a gyro/accelerometer on hand which is why I decided to use the IR switch. I just placed an order at SparkFun for a Gyro, so it should be here in a week or two for me to update this little bot and really make it perform.
Video after the jump.. Continue reading →
Vine is a bit of a rage at the moment, and I have to admit I find it kind of cool. Except the whole making a 6 second video isn’t really my thing, as they are not the kind of ideas that come into my head. One of the most used type of videos I make are Time-lapse. I make them with my DSLR for when I’m working on projects, and have even made a slider rig using an Arduino(I will post in the future). I wondered if it would be possible to do a time-lapse on the Vine app. I haven’t seen it done yet(I didn’t look very hard, as to not discourage my motivation) so I came up with an idea to make it work. Since you are confined to using the Vine app, and for those who have not used it, you have to touch the screen to record video, and when you stop touching it the recording stops. This makes doing scenes and cuts really easy, but hard to do anything but simple video. Instead of making quick videos I had the idea to make stills instead. The design would have to be something that would mimic a quick tap of the screen with a finger. Continue reading →
I’m currently in my last year of University and one of the courses I’m required to take is called Technical Report. The basis of this course is to create a project, document everything, create logs, presentations, and finally a professional report on the project at the end. For awhile now I have had the idea of entering SparkFun’s Autonomous Vehicle Challenge but didn’t really have the time away from school to take on the project. When I was telling a friend the idea of entering, he suggested I try to make the Challenge my TR Project. Well my professors actually loved the idea, and so began this project. An added benefit is they would be able to fund a few things, at the expense of having to leave the things they buy with the school. Continue reading →
On May 13th a new site is born, and coincidentally so was I 25 years ago today. My name is Sean Hodgins and I have created the Idle Hands Project Archives with my friend Abdul Shehata. The Idle Hands Project should bring you many hacks, codes, and completely useless gadgets in the near future. Harmless in nature these posts will include but are not limited to, Arduino projects, robotics, programming, wifi and bluetooth hacking, and anything and everything computers. Intrigued by home hackers of all sorts we would love to see your own projects, so please feel free to send them to email@example.com . This site will mainly be dedicated to our own projects, but are not apposed to posting those of other that are impressive and fitting to the site. Stop by and look out for upcoming updates for newly posted projects.
Now its time to work on a site design and log; But maybe I will sleep first.