Fresh hacks every day
This isn't a thrift-store coffee table modified as a craft project. [Dandujmich] built it from the ground-up using framing lumber, bottle caps, plastic resin, and some electronics for bling. The first step was to see if he had enough caps on hand for the project. It's hard to grasp how many were used just by looking at it, but the gallery description tells us there's about 1700 which went into … [Read more...]
This tie turned VU meter has us asking: Will anyone be able to look you in the eye during a conversation? It uses an integrated microphone and microcontroller to make a single-column display made of RGB LEDs move to ambient sound. It shouldn't be hard to guess that this project is another build from [Becky Stern]. She's been on fire lately, offering up glowing football helmets and a turn-signal … [Read more...]
If you've ever wanted to make your own VU meter but were scared off by the signal process you need to study this tutorial. Hackaday Alum [Phil Burgess] developed the device using an RGB LED matrix, microphone, and an Arduino. You'll notice that is doesn't include an MSGEQ7 chip which we see in most of these types of projects. We have seen a few that use the Fast Fourier Transform to map the … [Read more...]
EMC2 CNC keyboard labels If you've got a dedicated computer running EMC2 for CNC control you may be interested in these keyboard labels. [Rich] mentions that they use the labels for their engraver at the Connecticut Hackerspace. Just print them out and glue them in the face of the keys. Dev board seminars and freebies [Mike] wrote in to tell us STM is giving away samples of the … [Read more...]
Check out the LED cube which [Thomas], [Max], and [Felix] put together. But don't forget to look at that beautiful PCB which drives it... nice! But hardware is only part of what goes into a project like this one. After the soldering iron had cooled they kept going and wrote their own software to generate patterns for the three-dimensional display. Looking at a clean build like this one doesn't … [Read more...]
Another way to break out dual pin headers [Uwe] wrote in to share his technique for breaking out dual pin headers. He uses two single pin headers, a piece of protoboard, and a dual row pin socket to make an adapter. This is removable where the other method we saw this week was not. Web-based slide show hack Wanting to use an old Android tablet as a digital picture frame, [Gordon] … [Read more...]
This VU meter uses Nixie tubes as the display. There are a total of fourteen IN-13 bar graph tubes that map out the audio spectrum. The build uses purely hardware for the display; no microcontroller processing, or dedicated VU-meter chips were used. Input begins with a dual Op-Amp along with a pair of potentiometers which allow the left and right channels to be balanced. Both channels are then … [Read more...]
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