Monthly Shaarli

All links of one month in a single page.

March, 2018

Crimping Electronics Connectors (Dupont, PH, XH, VH, KF2510)

An overview of JST and similar crimp connectors.

The Chipophone

Linus Ã…kesson (lft) converted an old electronic organ into a MIDI controller and 8-bit synthesizer using two 8-bit ATmega88 microcontrollers. The synthesizer sounds very NES-ish with its bright square+triangle+noise oscillators. lft is musician and has several videos of himself on youtube playing very nice renditions of various chiptunes (from memory) on his Chipophone.

Sprites mods - Connecting an LCD to a non-video-capable Linux device - Intro

Jeroen Domburg's linux framebuffer driver which allows using a SSD1289-based TFT LCD, connected via SPI, as a monitor.

1-Pixel Pac-Man - YouTube
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I really like this aesthetic. Now I want to build a little console system based on a display like this.

Biolab Disaster

An early HTML5 game by Dominic Szablewski.

Simple Made Easy
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In this talk Rich Hickey makes a distinction between "simple" and "easy" to justify some oft advanced (if rather anti-OOP) software engineering practices: prefer composition, avoid state, try not to mess up your data by wrapping it in objects.

BuildIts in Progress: The Rubik's Contraption
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Ben Katz and Jared Di Carlo built this fast Rubik's cube solving machine (six servomotors and two cameras solve a cube in 0.38 seconds).

Mechanical Turing Machine in Wood [PDF]
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Richard J. Ridel's amazing programmable wooden calculator. Bonus: the conclusion has one of the worst descriptions of Universal Turing Machines and the Halting Problem you've read today.

See it in action in his youtube video: https://www.youtube.com/watch?v=vo8izCKHiF0

Repairs You Can Print Contest: Meet the Winners | Hackaday
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One-off repairs of parts that can't be easily made with hand-tools and a drill press is one of the best use-cases for 3D printers that I've seen.

VIC-2000 Expander. Modern Power Using Retro Parts! - Denial

This project in progress by Radical Brad looks really neat. It is a graphics co-processor (including an entire 6502-compatible CPU?) for the Commordore VIC-20 made in 7400 logic running at 25Mhz on a solderless breadboard (though I think he plans to create a PCB for it eventually).

Ring Counter Variations by Ronald Dekker

All about neon tube ring counters, and other non-standard ways to drive nixie tube clocks.

Oscilloscope Pong for one or two players

While I wasn't paying attention, Glen K. finished documenting his analog pong game, complete with nice hand-drawn schematics.

(Original EEVBlog thread: http://www.eevblog.com/forum/projects/oscilloscope-pong-for-1-or-2-players/)

He's now working on an asteroids game: http://www.eevblog.com/forum/projects/asteroids-we-don't-need-not-stinkin'-micro-processor!/

The 4 years of self-imposed crunch that went into Stardew Valley

"It does help if you can absolutely convince yourself that you're destined for greatness," says Barone. "It's not even an ego thing--it's just a way to prevent doubt and insecurity from hindering you."