Here is a DIY Digital Light Dimmer that uses 2 push buttons to adjust the brightness output. Full details can be found here. Thanks “The light level can be adjusted with two push-buttons “Up” and “Down”. Controller in this application is PIC16F84 that drives BUZ11 mosfet. Dimmer is tested with a light bulb 12V/4W and mosftet didn’t get even warm (which was expected since the datasheet says: 50V/30A).”
I have seen the writing on the wall for many years now. It is now possible for a single person or a small team to crank out physical items just like the big players with huge factories. In this new age where circuit designs can be cranked out on the coffee table and sent out to China for production the next day is fantastic! The internet has shortened the gap
Long time Hacked Gadgets reader NatureTM has just completed phase 1 of his Hard Drive Clock. It’s using an Arduino to keep track of time and control the clock display LEDs. After accidentally letting out the magic smoke from the hard drive controller he decided to improvise and use a hobby RC motor speed controller. This clock will be super accurate when it is complete since it will eventually be
The next installment of the Dune Buggy Electric Conversion project is in. Since we brought you the 1st installment about a month ago there has been lots of work put into it. There are lots of interesting techniques that can be used next time you are working with some high current applications. I like the way the wire lug ends were made rather than bought. The frame is sure to
Here is another project idea for one of those old hard drives you have laying around. The Multichord turns your hard drive and some other miscellaneous items into a musical instrument. “The Multichord musical instrument is an acoustic stringed instrument with a single string, constructed from wood, a hard drive, 20-lb monofilament, and assorted electronic components. It was the culmination of a project to build an acoustic instrument capable of
Carnegie Mellon University recorded a great talk about starting up a business. Steven Fleck who started ClearCount Medical Solutions moderated the panel. The panel members are Bryan Kaplan of Collaborative Fusion, Nathan Martin of Deep Local, Jessica Trybus of Etcetera Edutainment and David Chen of Fooala. It looks like CMU is doing a good job of fostering business building acumen into their current students. Nice to see that Nathan is
There are tons of cool LEGO CNC machines that have been made. The one pictured above can be seen in operation here (unfortunately we can’t embed the video here). It shows how so many people have real creativity since these CNC machines are obviously only for fun since a LEGO frame would not be adequate for doing any real work. Nice thing about LEGO is that once your design is
