If you need a super cheap scope and have a very tight budget this scope is for you. Nothing special but is sure to get the job done. "It has 2 analog inputs and can supply 5V ont the 4 pins header on the right. One of the inputs can be scaled down with the trim pot. The firmware in the Tiny45 is written in C and compiled with
This is a cool Braitenberg Vehicle, they are so bug like that they are almost spooky, watch the video to see what I mean. Full build details are provided so that you can build your own. "This one is even smaller, than the previous one and comes on a custom PCB. It weighs 17 gramms, is driven by two pager motors, powered by a small lipo cell and controlled
This Rubber Band Machine Gun reminds me of a small version of this one. It seems that the rubber bands could have been a bit more powerful but there is still lots of fun packed in the small unit. The firing mechanism is very elegant and simple.
Finkbuilt has a cool article up that shows a lithophane being created. One of these days I would like to put the Fireball V90 through its paces and also make one of these. "Lithophanes were a popular way to hide girlie pictures in the bottom a of gentleman’s tea cup around the end of the 19th century. An image would be molded into the porcelain in the cup so
What is better than a plain old huge TV? One that is huge and mobile! Watch the video that shows this mobile unit being setup. I totally want to rent this Big TV Truck to watch a movie in my back yard. Only problem is that the truck would not fit! This is a perfect example of build it and hope there is demand for it. I might have
This is a great electronic candle that allows you to light it with a match and then extinguish it by pressing it between your fingers. There is additional information in the Elektronika dla Wszystkich magazine which I unfortunately don’t have. I am thinking that the system is using the LED as a light sensor and detecting the bright flame from the match and the darkness that is produced when
Above is an electronic board, the source will not be given to add to the challenge. This contest will run for one week (Aug 15 – 21, 2009). Ending time is based on central standard time. To enter, leave a comment with your best guess of the item price. If you know the source of the ad please do not provide it in the comments. The winner will the
