Concepts — PSB (Post Secondary Brewing)
Chris and Susan’s craft brewery. Three agents: psb-thinking (planning), psb-gemma (brewhouse ops), psb-business (business side).
Active Projects
| Project | Status | Key Concepts |
|---|---|---|
| Fermentation Dashboard | Planning | Home Assistant, TILT hydrometer, Grafana, dashboarding |
| Brewery PID Replacement | Prototyping | ESP32-S3, ESPHome, Home Assistant, PID, PT100, custom PCB |
| Toast POS | In use | Point of sale, product mix reports, email export |
| Pi-hole (brewery) | Not started | DNS, ad-blocking (separate from home Pi-hole) |
Core Skills
- Brewing chemistry — fermentation, yeast, malt, hops
- Home Assistant — telemetry dashboards, TILT integration
- ESP32/ESPhome — brewery sensor integration
- Toast POS — sales reporting, product mix analysis
- PCB design — custom PID controllers (Chris’s growing skill)
- PID control — temperature regulation for brewing vessels
Knowledge Dependencies
Brewery PID Control
├── Temperature sensing (PT100, MAX31865)
├── PID algorithm fundamentals
├── ESP32-S3 + ESPHome
├── Home Assistant integration
└── Solid-state relay (SSR) control
Fermentation Dashboard
├── Home Assistant ( Lovelace dashboards)
├── TILT hydrometer / Bluetooth bridge
├── Grafana (optional, for pretty charts)
└── ESP32 bridge programming
Toast POS
├── Report generation (product mix)
├── CSV export
├── Email automation
└── Google Sheets integration
Gap Analysis for Chris (at brewery)
Chris is strong on: brewing, electronics, PCB design Chris is weak on:
- Home Assistant YAML — configuration, automations, templating
- Dashboard design — making data look good (Grafana, Lovelace)
- Software integration — wiring multiple systems together
Recurring Topics
- Temperature control — PID for vessels (HLT, mash tun, boil kettle, fermenters)
- Home Assistant — telemetry dashboards, sensor integration
- Custom hardware — ESP32 + PT100 + SSR for temperature control
- Data visualization — making fermentation data readable
- PCB design — custom brewery controller boards