psn-site

🌱 Verdant Cell (PSN)

Automated resilience, one shed at a time.
Small, documented, and reproducible.

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📚 PSN Overview & Master Docs

• PSN MasterDoc (overview):
  • PSN_MasterDoc_v1.md
  • PSN Project summary.md
• Documentation Standards (naming, templates):
  • PSN Naming conventions.md
  • 🧩 PSN Project Template for submissions(v1).md (in Documentation Standards)
• Embercore (reference project):
  • Phase 1 – Foundation & Orientation
  • Phase 2 – Build
  • Phase 3 – Installation & Commissioning

TL;DR: PSN is the way we collect, name, and ship projects so humans (and robots) can repeat them without guessing.

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🚀 Start Here (Verdant Cell)

• Phase 1 (Build & Bring-up):
  • VC Phase 1.1 System Integration Snapshot (latest)
  • Component Selection Notes
  • Wiring & Assembly Notes
  • Moisture Sensor Calibration Log
• Arduino Code:
  • VcArduinoCheckoutCode.ino
  • VerdantCellPhase1.1Checkouts.ino
• Diagrams & Pinouts:
  • Arduino pin-out
  • Arduino wiring diagram (PDF)
  • Power diagram (PDF)

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📈 Live Ops

• Daily Log (spreadsheet):
  • Verdant cell daily log.xlsx (in The Verdant cell/Docs)
• Current Phase: 1.3 – Initial Grow Cycle
  • Milestones to watch: Germination → Pump counter on OLED → Week-long stability → First harvest.

Want the fast story? Phase 1.2 closed with a fully automated rig (pump, lights, fan, RTC, OLED).
Phase 1.3 kicked off with seeds planted and 24-hour baseline collected.

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🧪 How to Replicate (high level)

1. Power: 12 V → buck to clean 5 V → feed Arduino 5V pin + relay VCC (common ground).
2. Sensors: 4× soil moisture (A0–A3) with per-sensor dry/wet calibration.
3. Actuators: Pump, Light Zone 1, Light Zone 2, Fan on relay board (active-LOW safe boot).
4. Control: RTC-scheduled lights + moisture threshold pump (hysteresis + cooldown).
5. UI: 128×64 OLED shows date/time, 4× moisture %, avg %, T/RH, and actuator states.

Full details are in the docs above. If you follow the wiring + code as-is, you’ll match the reference build.

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🛠️ Roadmap (near term)

• Add pump cycle counter to OLED + serial logs.
• Tidy fan wiring (strain relief, clips).
• Networking upgrade to enable live telemetry sync from shed laptop (Phase 2 anchor).

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📷 Gallery (coming soon)

(We’ll drop photos of the trays, fan shroud, and controller here.)

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Credits

Built by the PSN community. Contributions welcome — open an issue or PR.