Greg joins Phil and Rohan to share how he built a brewery control system with ESPHome and Home Assistant: Modbus PID retrofits, ESP32-based temperature control with one-wire probes and 24V valves, Bluetooth gravity sensors via proxies, pressure management, and full on-site HA installs with PoE satellites.
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Chapters
00:00:00 Intro, sponsors, and Greg’s background
00:05:30 From Modbus PIDs to ESPHome brewery control (gravity, pressure, 1‑Wire)
00:10:45 Turning it into a business: pilot installs, testbeds, and scale
00:15:45 Local-first architecture: on-site Home Assistant, PoE satellites, Bluetooth proxy
00:22:30 Hardware talk: Blue/Yellow/Green, mini PCs, RAM needs, migration plans
00:28:00 Home automations: locks, Reolink presence, candles, sump/dehumidifier monitoring
00:35:00 Water and power: AI-on-the-edge metering, overuse alerts, three-phase pumps & contactors
00:42:00 QoL automations: fish-feeding sensor, night stair lighting, backup ideas
00:49:30 Fun stuff: ESPN team goal lights, polling vs. streaming delays, event triggers
00:55:00 Data + reporting: Utility Meter, History Stats, InfluxDB, AI ideas, alerts, wrap-up
This episode was made possible thanks to our sponsors
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Phil Hawthorne
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Rohan Karamandi
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