An engineer is simply an individual that can do for a dime what any fool can do for a dollar.

San Francisco, CA
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This user joined on 02/27/2014.

Things I've Built


I thought this would be a mental exercise back in 2004, but it ended up being the lynchpin for two professional projects in 2012: one with Valparaiso University's Solar Research Facility and another with a local company, Sundolier.

Portable Bench Supply

My second project on Hackaday, a portable bench supply with over 10Ah of Li-Po, protection circuits and an on-board charger. Limited to 12V@500mA, it was nonetheless very helpful for low power shop floor projects that ran for long periods.

Bench Supply

My first DIY bench supply; +/- 0-24V @ 1.5A, Fixed 5V@12A and 3.3V@5A. Built out of surplus parts and a beefy transformer out of an old projection TV.

Laptop Monitor

My first project on Hackaday, reusing an old laptop as a second monitor. In mid-2007 using just the LCD would have been an expensive proposition: LVDS cards were $200-$500, so I piped it over a network connection.

CNC Mill

Circa 2007, my first ground-up CNC build. Runs EMC2 (now LinuxCNC) with spindle control, M-Code vacuum and a custom pendant.

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Mitsuru Yamada wrote 02/09/2024 at 00:52 point

Thank you for liking and following my #PERSEUS-3 6802 homebrew computer and #6802 Serial Terminal! The serial terminal could be completed using PERSEUS-3 as an emulator. I was then able to develop the display and keyboard part of the PERSEUS-9 using that hardware and software as a reference. And the integer interpreter I developed on the PERSEUS-3 became the impetus for the subsequent development of my own floating-point interpreter for the PERSEUS-8 and -9.

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