Computers & Mobile

The latest DIY ideas, techniques and tools for digital gadgetry, open code, smart hacks, and more. Processing power to the people!

Make: Projects – Micro FM Transmitter

Make: Projects – Micro FM Transmitter

This transmitter is commonly credited to Japanese multimedia artist Tetsuo Kogawa. It takes audio input through a 1/4? phono jack and, constructed as shown, without the optional antenna connections, will broadcast an FM radio signal about 30 feet.

This is the standard model of Mr. Kogawa’s simplest FM transmitter, which is slightly more complex than his most basic design in that it includes a trim capacitor to adjust the transmitting frequency. It can be powered by a 9V battery and uses a hand-turned copper coil.

Continue Reading Sean Michael Ragan9
Free Web Accessible Visual Regular Expression Generator

Free Web Accessible Visual Regular Expression Generator

Mark is a programmer who hates writing regular expressions. So he wrote a kind of visual regular expression generator that starts with the string to be searched, identifies recognizable patterns in it, and lets you select those you want. Then it outputs a working (albeit probably inelegant) regular expression to get the job done. The commentariat over at txt2re.com is somewhat predictably divided between grateful regex amateurs and annoyed experts. [via Boing Boing]

Continue Reading Sean Michael Ragan6

Data Sorting Dances

Created at Romania’s Sapientia University. The YouTube channel is AlgoRythmics. Although some naysayers have expressed doubt about the choreographic expression of a quicksort, per the AlgoRythmics Facebook page, videos of both quick- and merge-sort dances will be uploaded in a few days. Stay tuned! [Thanks, Stefan!]

Continue Reading Sean Michael Ragan18