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Archive for the ‘hacks’ Category

Run a Korg SQ-1 Sequencer from a 9V Stompbox supply

Thursday, July 11th, 2019

  Run a Korg SQ-1 Sequencer from a 9V Stompbox supply: The Korg SQ-1 is a great little sequencer, and one of my favourite bits of kit for its simple hands-on feel and penchant for lucky randomness (I have 3 of them!) I tend to use it in a live...

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Variable Frequency Drive

Tuesday, February 19th, 2019

Lukas Fässler over at Soldernerd wrote an article detailing his homemade VFD drive for his Schaublin 102 lathe. Check out the video after the break. (more…)

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Semiconductor radioactivity detector – part 2

Tuesday, February 19th, 2019

Robert Gawron has been working on a radioactivity detector, that is available on GitHub: There are many ways to measure radioactivity level, semiconductor detectors sense interactions between ionizing radiation and p-n junction. Because in hobbyist area most popular are Geiger-Muller based detectors (in short: not a semiconductor but lamp based...

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Making an e-Paper Etch-a-Sketch

Monday, November 12th, 2018

Scott Baker has been working on making an Etch-a-Sketch using modern e-Paper displays and optical encoders: Above you can see my prototype. I’m using a 4.2″ e-Paper display from Gooddisplay, together with the Waveshare breakout board. I have a couple of ENS1J-B28-R00128 optical encoders that I attained on eBay. I...

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Vintage headset conversion

Monday, October 22nd, 2018

Quinn Dunki wrote a great article describing the conversion process of a 1980s-era Earmark into a bluetooth headset: The obvious thing is to convert it to a bluetooth headset for modern use, right? As I previously warned, converting a 1980s-era air traffic control headset into bluetooth headphones is probably the...

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Atari 5200 Playstation 2 dual-shock controller adapter

Friday, September 28th, 2018

Dr. Scott Baker has developed an adapter that allows you to use Playstation 2 analog controllers on an Atari 5200, that is available on gitHub: This adapter allows you to use a PS2 controller on an Atari 5200 gaming console. The 5200 was notable at the time for its use...

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Wyostat: Open source Thermostat Pt. 1

Thursday, August 2nd, 2018

Kevin has been working on building his own thermostat, that is available on github: Does the world need another connected thermostat? When my thermostat went on the blink last winter, I looked at Nest, and Ecobee, and the other me-too thermostats, and I decided I would rather build my own....

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A software only solution to the vexing Beagle Bone Black PHY issue

Thursday, June 21st, 2018

Josh Levine has a nice write-up about a software only workaround for the Beagle Bone Black PHY issue: Sometimes the Ethernet port on a Beagle Bone Black does not work on power up. It takes either a physical reset button press or a power cycle to fix it. This problem...

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Emulating a hardware ROM in real time with an STM32F4

Thursday, June 14th, 2018

  ROM emulation using an STM32F4: I remember reading dhole’s  Emulating a GameBoy Cartridge with an STM32F4 some time ago thinking that it had a lot of applications with respect to old computers. In that article  a STM32F4 microcontroller  ‘pretends to be a ROM chip for a gameboy’. At the...

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Raspberry Pi virtual floppy for ISA (PC XT/AT) computers

Monday, May 7th, 2018

Dr. Scott M. Baker wrote an article detailing how he turned a Raspberry Pi into a virtual storage device for ISA bus computers: I’m tired of carrying compact flash cards and/or floppies back and forth to my XT computer. I like to do development at my desk using my modern...

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Desoldering station

Thursday, May 3rd, 2018

Stynus writes: Some time ago I bought a lot of Weller soldering irons at an auction for cheap. Between these where a few DSX 80 de-soldering irons. I also had an old Weller IG101 solder station (bought earlyer from another hobbyist), unfortunately I had no iron for this one and the...

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AtPack: Atmel Pack parser, visualizer and fuse calculator

Tuesday, April 17th, 2018

  AtPack - Atmel Pack parser, visualizer and fuse calculator from Vagrearg: Looking for an up-to-date fuse-calculator for the Atmel(*) AVR chips has been something of a long search. There are several online versions, but they have not been updated to the new chips (like the ATmega328PB). When you have got...

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Converting a Seeburg 3WA wallbox into a remote for a modern music player

Friday, April 6th, 2018

Dr. Scott M. Baker wrote an article detailing how he converted a Seeburg 3WA wallbox into a media player for his homebuilt audio player: A bit of background. These Wallboxes were used as remotes in diners and other locations back in the 1950s. You put your nickel, dime, or quarter...

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Philips Hue – control anything hack

Saturday, February 24th, 2018

Fred writes: To be honest, my recent simple relay hack wasn’t really all that great. It just used the high power constant current output to drive a SSR. It wasn’t ideal, but it worked. I decided that it was worth the effort to track down some more useful outputs and...

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PS2-TTLserial adapter for RC2014 and MIDI

Monday, October 30th, 2017

Dr. Scott M. Baker published a new build: The original reason for this project is that I wanted to build a standalone RC2014 with keyboard and display. There is an official RC2014 serial keyboard, but I find it a little inconvenient for my big fingers and poor eyesight. I have...

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Feather M0 express supersizing

Friday, October 20th, 2017

Dastels writes, "In my last post I described how I hacked a 2Mbyte SPI flash onto a Trinket M0 to give it the memory space for CircutiPython of one of the M0 Express boards. This time I supersized an M0 Express board, specifically a Feather M0 Express, although the same hack...

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Vintage MIDI: Roland MT-32, Roland SC-55, HardMPU, and an Xi 8088

Wednesday, October 11th, 2017

https://www.youtube.com/watch?v=UUNkQINpSKw Dr. Scott Baker writes: In this video, I decided to upgrade my home built PC from AdLib sound to MIDI. I tried out a couple different midi modules, the Roland MT-32 and the Roland SC-55. I learned that I'd need an MPU-401 or compatible ISA interface, and I explored...

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Modifying a computer ATX power supply for higher output voltage

Monday, October 9th, 2017

Kerry Wong wrote a post on his blog showing how he modified the 12V rail of a TL494 based ATX power supply to 14.6V for 4S LiFePO4 battery charging: To charge the 110Ah battery bank I built, I need a power supply that can provide at least 10A at 14.6V....

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Multiface 128 recreation project

Thursday, October 5th, 2017

Steve Smith  has been working on a Multiface 128 recreation project: On to the Multiface 128 recreation project. I have been attempting to find a source for an AT&Y SPEC-MATE which is a lesser known snapshot interface for the earlier Sinclair Spectrums. I used to use one back in the...

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TS100 oscilloscope hack

Thursday, September 28th, 2017

Befinitiv wrote an article describing his modification to turn a TS100 soldering iron into an oscilloscope: As you can see in the video, you can use the soldering tip as your measurement probe. Coincidentally, a soldering iron has already a pretty good form factor for an oscilloscope. Here is a still...

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Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please