If you are a light sleeper and don’t need much to wake you up in the morning then this DIY Gentle Wake Up Alarm Clock by Michiel Spithoven might be the ticket for you. On the other hand if you can sleep through a thunderstorm then you may want to look into a real loud alarm clock instead. 🙂 “First I wrote some test code to check of a small
We have seen tons of cool rubber band guns and lots of potato guns but I think this is the first Sausage Gun I have ever seen. The resulting gun after a 4 hour build looks like lots of fun. I guess it would be classified as a less lethal weapon since I think it would hurt but I don’t think it could kill.
I have taken a few speakers apart over the years to see what makes them tick but I have never rebuilt one. Keith Neufeld goes over the details of how to perform a DIY Speaker Rebuild Kit Installation on his Keith’s Electronics Blog. The process doesn’t look all that bad but it isn’t something you can knock off in an afternoon. There is some serious glue drying periods that drag
The team over at Noisebridge just launched a Near Space Balloon with some gear on board. They got some very nice pictures along the way! It sure seems that this type of project is totally within reach these days. I think my next challenge will be to round up a team of people in Winnipeg who want to attempt this up here. Might have to wait till the snow goes
Here is a nice DIY Single-Ended Tube Amplifier design with a bit of Transformer inspired artwork made from some painted copper clad board. Thanks Gio. “For the circuit I used home made (hand etched) circuit boards, but the tube amplifier is so simple it can be easily connected with point-to-point wiring, especially if you choose to heat the tubes using AC. The LM338K is mounted (with electrical isolation) to an
This Autopilot for Aerial Photography slide show that was done for Barcamp Antwerp looks really interesting. “The autopilot has a built in mixer. On first use you need to tell the autopilot what the channel and mixer arrangement of your transmitter/airplane combination is. To put the autopilot in calibration mode, switch on the transmitter, put all sticks in the center and switch channel 6 to “ON”. Now turn on the
This Coffee Can Clock is a nice piece of work, there is a good build log and tons of details here at the Wise time with Arduino blog. “The electronics is based on Wiseduino (Arduino clone with DS1307 real time clock on board), with a LED matrix shield sitting on top. The shield is built with 74HC595 shift registers that drive two bi-color (red, green, and orange by subtraction) 8×8
