Raphael Assenat has designed a circuit that allows a computer parallel port to control 110VAC lighting. It is optically isolated allowing the computer to remain safe as it switches the high voltage. “I had been thinking of controlling my room lighting using my computer. I bought some triacs and opto couplers to do this. I drew the schematic and built a prototype. Everything worked well. When I was wondering in
Our friends at Natural Interaction have revamped their Web site and have a bunch of new videos showing off their cool interactive technology. You can also read more about the technology at SensitiveWall.com. I think it is just a matter of time before we see this interface being used everywhere. It looks very intuitive. “One of the characteristics of a successful natural interface is the reduction of cognitive load
Dick Cappels has made a DIY LC meter. As usual he has provided full schematics and code so you can build your own. “There must be half a dozen similar LC meters on the web. Why didn’t I just download one of them and use it? I suppose part of the answer is that I wanted to do some of it myself. As nice as these other projects are, I
I have never seen this demonstration before. Water running through two small open cans into a larger metal collection container wired together to create 10,000 to 15,000 volts. Is it an accumulation of static electricity? If someone knows what is happening I would love to hear about it! Via: Zedomax
Got a dusty computer room? Don’t clean, just purchase a USB mask. 🙂 “The USB Mask looks essentially like it has a pair of PC case fans on either side that are powered by the black USB cord that comes out of the front of the mask. From the photos, it also appears you’re supposed to wear a standard dust mask underneath the USB Mask for additional air filtration. I
The Dish Maker looks like an interesting product but I think the “recycling†process might be understated. There are issues he needs to address. I hope he made a platter or mixing bowl function. What about strange shaped dishes or pitchers? Will this machine make measuring cups as well? I know my utensils take up every inch my plates cups and bowls do. I am assuming that the dirty dishes will
Check out the latest keyboard project over at uC Hobby. If you want a free LCD display from uC Hobby, read this. “Here you see the controller board sitting in the new box with the wires soldered on. I did do some modifications to the switch box PCB. The red jumper wire provides an isolated ground for the LEDs. The two wires, orange and white in upper left get power
