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Bios Rhythm
biosrhythm.com · Personal blog · on HN since 2012
Bios Rhythm is a personal hobby blog about retro computing and hardware projects, such as typewriter plotters and Hayes Stack Chronograph upgrades.
What HN saysHN commenters link it for specific retro hardware projects and tips, including Commodore-related keyboard interfacing with the Keyrah.
16HN people shared it
3linked it in comments
23stories submitted
553story points
11 months agolast shared
2012people per year2026
Most-shared posts
- 1Typewriter Plotters (2022)4 people · 139 points · first shared 2022 · 12 comments on HN
- 2Modern Upgrades for the Hayes Chronograph3 people · 29 points · first shared 2017 · discussion on HN
- 3Macintosh Emulation and Printing Using Mini VMac on a PocketCHIP3 people · 3 points · first shared 2023 · discussion on HN
- 4LumaFix64: Commodore 64 with less stripes2 people · 89 points · first shared 2016 · 9 comments on HN
- 5Stealth Macintosh Portable case mod2 people · 4 points · first shared 2025 · discussion on HN
- 6A Global AppleTalk Network: Pushing AppleTalk Across the Internet1 people · 89 points · first shared 2024 · 33 comments on HN
- 7WiFi232 – An Internet Hayes Modem for Your Retro Computer1 people · 85 points · first shared 2017 · 8 comments on HN
- 8Convert a Commodore 64 from NTSC to PAL Format1 people · 79 points · first shared 2016 · 8 comments on HN
- 9RS-232 for Commodore PET and Dialing a BBS Over WiFi1 people · 28 points · first shared 2016 · 3 comments on HN
- 10Northern Telecom Displayphone ROMs and Information1 people · 3 points · first shared 2018 · discussion on HN
- 11DIY NES Gamepad to iPad Adapter1 people · 1 points · first shared 2012 · discussion on HN
- 12Converting a Commodore SX-64 to a DX-64 Dual Drive (2015)1 people · 1 points · first shared 2021 · discussion on HN
- 13Commodore Pet 2001 Repair1 people · 1 points · first shared 2022 · discussion on HN
- 14Installing an Ethernet card and video card and other upgrades for a Mac SE/301 people · 1 points · first shared 2022 · discussion on HN
- 15Making DOS and CP/M 5.25″ Boot Disks with Commodore 128 and 1571 Floppy Drive1 people · 1 points · first shared 2018 · discussion on HN
What HN people wrote when they linked it
nickt · 2024-02-22
There’s also some upgrades available for the Hayes Stack Chronograph.
https://biosrhythm.com/?p=1546
retrogradeorbit · 2017-07-13
Just did some more searching and found it. http://biosrhythm.com/?p=1340
smellf · 2015-09-08
You may want to try something like what this guy has done:
http://biosrhythm.com/?p=910
The key piece of hardware is the Keyrah:
http://www.vesalia.de/e_keyrahv2.htm