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Author Archives: Fernando Gomes
A Stunning Ray Gun Built From Junk
If ever there was a quintessential weapon of science fiction, it would have to be the ray gun. [lonesoulsurfer] built this one-of-a-kind stunner from his impressive collection of junk. It’s centered around a vintage Bakelite soldering gun, a vacuum tube, and a portable stove burner, all of which contribute to …read more
Posted in Bakelite, blaster, Microcontrollers, pew pew pew, phaser, ray gun, soldering gun, vacuum tube
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Software Defined Radio Gets Physical Control
Software Defined Radio (SDR) is a great technology, but there’s something so satisfying about spinning a physical knob to cruise the airwaves. Wanting to restore that tactile experience, [Tysonpower] purchased a cheap USB volume knob and set out to get it working with his software. Unfortunately, getting it up and …read more
Posted in dfu, input device, Microcontrollers, peripherals hacks, reverse engineering, sdr, stm32, usb hid
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An Arduino and an Enigma All Rolled Into One
This hacker has been wanting to design an Enigma machine simulator for a while, but didn’t take the leap until they realized there was a compact Arduino with a surplus of I/O.
The logs go through all sort of variations on the machine. Everything from a plug board variation similar …read more
Supercon SMD Challenge Gets 3D Printed Probes: Build Your Own
This year was the second SMD challenge at Supercon, so it stands to reason we probably learned a few things from last year. If you aren’t familiar with the challenge, you are served some pretty conventional tools and have to solder a board with LEDs getting progressively smaller until you …read more
Posted in 3d Printer hacks, Hackaday Columns, led, probe, smd, SMD Challenge, Supercon, tool hacks
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Custom Nixies Perform When Cranked Up to 100,000 Hertz
With the popularity of Nixie clocks, we’d be forgiven for thinking that the glowing tubes are only good for applications with a stately pace of change. But we forget that before they became the must-have hobbyist accessory, Nixies were used in all kinds of scientific instruments, from frequency counters to …read more
Posted in clock hacks, gas discharge, ground state, half-life, High speed camera, neon, nixie, timer
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Stackable Open Source 3D Printer Enclosure
One of the unfortunate realities of desktop FDM 3D printing is that environmental factors such as ambient temperature and humidity can have a big impact on your results. Even with the exact same settings, a part that printed beautifully in the summer can warp right off the bed during the …read more
Angela Sheehan is Developing Wearable Tech with Whimsy
As a concept, wearable technology excites many of us, but in practice, it’s been hard to nail down. Up to this point, the most high-tech thing the average person might reasonably wear has been a wrist watch. Devices like Google Glass tried to push the state-of-the-art, but it arguably raised …read more
Linux Fu: Debugging Bash Scripts
A recent post about debugging constructs surprised me. There were quite a few comments about how you didn’t need a debugger, as long as you had printf. For that matter, we’ve all debugged systems where you had nothing but an LED to flash or otherwise turn on to communicate …read more
Posted in bash, bashdb, debugging, Hackaday Columns, Linux Fu, linux hacks, shell script, Skills
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A Tree of LEDs That Blows Out Like a Candle
The beautiful workmanship in [Andrew]’s LED tree is gorgeous all on its own, but of course there’s more going on than meets the eye. This LED tree can be blown out like a candle and it even playfully challenges a user to blow out all the lights at once in …read more