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. Kogawaโ€™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 Romaniaโ€™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