Hackaday featured today LPT DAC circuit. Back in the olden days, around 25 years ago, sound cards were rare on PCs. One hack those days was the original Covox Speech Thing, that connected a simple DAC to to PC parallel port. The Covox Speech Thing (also known as Covox plug) was an external audio device →
Android devices can be used as signal generators and signal analyzers. It is easy when all you want is to get the signal out of the speaker or headphone connector, and you are happy to analyze what internal microphone in the device receives. But what if you want to feed some external signal into your →
Farnell/Newark/Element14 has been running a Conductive Ink Challenge with deadline of 31st August 2014. In it the competition the plan is to draw artistic circuits by hand using nickel or silver-laced “ink”. The aim is to make eye-catching piece of art. Judging is based on creativity, originality and technical and is final To test conductive →
This is a very interesting idea. http://spectrum.ieee.org/geek-life/hands-on/diy-musclememory-programmer Posted from WordPress for Android Video: DIY: Haptic Gloves Teach Touch Typing →
http://spectrum.ieee.org/geek-life/hands-on/build-a-levitating-disco-ball Posted from WordPress for Android →
I saw an interesting kit at banggood.com and decided to try it: DIY Meter Tester Kit For Capacitance ESR Inductance Resistor NPN PNP Mosfet M168 . The reasons for interests are good specifications, based on open source hardware design and price is reasonable ($12.22 / 9.37 Euro). DIY Meter Tester Kit For Capacitance ESR Inductance →
Did you know that it’s possible to build a working compound microscope with nothing but LEGO elements? Collecting votes now on Lego Ideas is a fully functional microscope — constructed entirely out of Lego bricks. Artist Carl Merriam, who is known for his intricate Lego renderings of mythical creature Cthulhu and other custom creations, submitted the →
Simple Ways to Create Face-Melting Digital Experiments blog posting discusses the rise of the IoT and maker culture. It discusses how seemingly simple tasks that earlier took weeks to do can nowdays hacked together in a day when you combine suiable on-line tools and maker hardware solutions. The posting lists many tools that I have →
I just built Android Cardboard DIY Virtual Reality Headset of which I mentioned in the blog two weeks ago. Here is my DIY version. I had to make some changed to lens holding part, because the lenses I had were a little lit larger than the ones the headset was designed to use (not too →
I have last year written about USB soldering irons starting with USB soldering iron posting that introduced the idea. I followed with DIY USB soldering iron posting that gave ideas how to make your own instead of buying a ready made product. Now it is time for an updateon this topic. Element 14 Ben Heck →