A True Telnet BBS on a Casio Calculator
ei3lh.eu
August 16, 2026
12 min read
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51/100
Summary
A Bulletin Board Service (BBS) has been successfully hosted on a Casio VX-4 calculator. The developer has created four software applications for the Casio Pocket Computer calculators, with one already published on GitHub and the others planned for open source release.
Key Takeaways
- The author developed four software programs for the Casio Pocket Computer calculators, with one already published on GitHub and the others planned for open source release.
- The author created a logging software called Jamoncito FX for amateur radio contacts using the calculator's BASIC programming capabilities.
- The Casio VX-4 calculator can be upgraded to 64kb of memory by replacing its 8kb chip, enhancing its functionality for programming projects.
- The author utilized an RS232 serial interface on the calculator for various programming and communication experiments.
Coverage & discussions
Hacker News · ei3lh.eu
Community discussions
Hacker News discussion ↗
Historical count: 5 · 5 saved in sample · Historical sample
Analysis ready
Community Sentiment
Positives
- The author’s storytelling style feels like an engaging autobiography, making the reading experience enjoyable and personal.
- The AI-generated fake magazine advert for the VX-4 is a standout highlight that many found amusing.
Concerns
- The quirky font and colors used in the article make it incredibly hard to read, which detracts from the overall experience.
