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Archive

These documents are engineering history, not instructions.

Everything in this section is a dated design note, implementation plan, or pull request write-up describing work that has already shipped. They are kept because they record why subsystems are shaped the way they are — the constraints, the alternatives considered, and the measurements that settled the argument.

Do not follow these as guides

Archive documents describe the state of the project on the date in their filename. Commands, file paths, constants, and APIs in them may no longer match the code. For anything you intend to do, use the current guides:

Design notes

The "what and why" documents — problem statement, approach, architecture, and non-goals — written before implementation started.

Date Document
2026-03-03 Enhanced launch angle estimation
2026-03-23 K-LD7 angle radar integration
2026-03-28 K-LD7 full stack integration
2026-04-05 K-LD7 raw ADC processing
2026-04-10 Spin detection rework
2026-04-15 Spin & angle data quality validation
2026-04-20 Hardware diagnostic script
2026-06-09 K-LD7 timing and PRF probe
2026-07-25 IWR6843 club path from pre-impact frames
2026-08-09 Optional battery and camera build items

Implementation plans

Task-by-task execution plans, most containing the source and test bodies as they were written at the time.

Date Document
2026-03-03 Enhanced launch angle estimation
2026-03-28 K-LD7 full stack integration
2026-04-05 K-LD7 raw ADC processing
2026-04-06 RADC launch angle full-stack
2026-04-10 Spin detection rework
2026-04-15 Spin & angle data quality validation
2026-04-20 Hardware diagnostic script
2026-06-09 K-LD7 timing and PRF probe
2026-06-13 Sim connector abstraction
2026-08-09 Documentation audit
2026-08-23 Zensical docs site migration
— K-LD7 RADC club head extraction (TODO)

Pull request notes

Date Document
2026-04-02 K-LD7 shot correlation and false-positive filtering