geocam.cloud

Geocam in the Cloud

George's corner of the web. One branch so far, and room for more: each topic gets its own home page below, with its own index. Everything here is static HTML — no tracking, no cookies, nothing to fetch — and every page works saved to disk.

01 · Where to go 1 branchEach row is a home page of its own, with its own index. More will follow.

Cheat Sheets & Lessons

48 sheets · 6 lessons
Dense, single-page references for complex devices, on the belief that every device deserves one. Twelve calculators and pocket computers from the HP-12C of 1981 to the HP Prime and the TI-Nspire CX II CAS — the RPN classics HP-15C and HP-12C with every function and a worked program, the menu-driven HP 17bII+ with its Equation Solver, the clamshell HP-28C with both keyboards drawn, the HP 48SX, the HP 50g in User RPL and System RPL, the HP-71B, the Sharp G850, and DB48X, the modern RPL firmware for Swiss Micros hardware — each with its keyboard drawn and its command set indexed from the original manuals. Ten software sheets share one house style: C, C++, Swift, Java, Objective-C and Cocoa, Python, the shell, Spring Boot, Gforth and osascript. Beside them: macOS /usr/bin and networking, the Raspberry Pi 5 and Orange Pi 3, the Arduino UNO R4 and an ESP32 bench, a Siglent SDS1104X-E oscilloscope, Omarchy, Autodesk Fusion for scale models printed in colour, and the AI coding tools — Claude Code, Copilot, Grok and Kimi. Every sheet has a filter box that narrows every line on the page as you type, and prints to a multi-column bench reference. The six lessons are longer pieces on method — how to actually work with an agentic coding tool — each shipping the files it describes.
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