Matt Ownby's Cool Projects
Wednesday, February 18, 2026
Halcyon working with real laserdisc player!
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I had uploaded this video back on Apr 2025, but I guess I forgot to post about it here on my blog. So here it is.
Monday, January 20, 2025
Halcyon clone WIP - Voice recognition working!
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Friday, June 28, 2024
Halcyon clone WIP - CPU, speech synth, keyboard, all working!
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Here's a video showing my progress on cloning the RDI Halcyon!
Thursday, June 27, 2024
Halcyon replacement power supply finished
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Since I will need to return the original power supply soon, I needed to whip up a replacement one so I could keep working on Halcyon once I...
Saturday, June 22, 2024
Halcyon v2 repair log - RAM not working correctly
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So I've got far enough with my Halcyon clone project to get the CPU working properly. I wrote a small test program to test RAM I/O and ...
Friday, June 7, 2024
Esh's Aurunmilla hardware is now open source!
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I've sold all of my Esh's clones and commercial demand is exhausted. So I've open sourced everything I created to make an Esh...
Wednesday, March 13, 2024
Halcyon clone v2 repair log
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Wrote test ROM, then hooked up logic analyzer to Z80 to see how far it got. Was surprised to see that RESET' was held low. Using logi...
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