05 / ENGINEERING LAB
SENSORS. CODE.AI. THE WORLD.
Where load cells meet a stability state machine, where a casino round is authoritative on the server, and where a firmware image is verified to compile before anyone claims a latency number.
FEATURED SYSTEM · GOLDGUARD
AI + HARDWARE + COMPUTER VISION SECURITY SYSTEM
Scroll to pull the system apart. Each layer is a real component of the repository — the camera stream, the vision engine, the tray census, the weighing platform, the event engine, the security layer and the data store.
- 01CAMERAS— machine-vision sensor above the showcase
- 02VISION— person boxes · wrist keypoints · hand region
- 03DETECTION— tray census on native-resolution tiles
- 04SMART SCALE— 4 load cells · ADS1234 24-bit · ESP32-S3
- 05EVENT ENGINE— filters → drift → stability FSM → classifier
- 06SECURITY— RBAC · scoped share links · token-gated WS
- 07DATA— PostgreSQL · morning report · evidence pack
- TESTS GREEN
- 1,125
- API ENDPOINTS
- 51
- DATABASE TABLES
- 27
Method
WRITE IT DOWN. MEASURE IT. THEN SAY IT.
- 01System design documents before code — 50+ numbered docs in GoldGuard alone
- 02Design targets are labelled as targets; only measured numbers are quoted
- 03Tests that touch the production path — the real-Postgres suite runs in CI
- 04Server-authoritative game rounds, cryptographic RNG, idempotent wallets
- 05Repository audits written for the merge, not after it
ENGINEERING-HEAVY SYSTEMS
