Local-first
Grow Core, Home Assistant, firmware, and history keep working without a mandatory cloud account or internet connection.
Concept & prototype · open source
Grow automation you actually control
GrowRig is an open, local-first ecosystem for monitoring and automating grow tents, boxes, and rooms — built on Home Assistant, open controller hardware, and equipment you can replace.
One ecosystem, clear boundaries
The integration of a commercial product, without the lock-in.
Replaceable hardware
Devices are described as structured capabilities, not hard-wired to a single vendor. Swap a fan or sensor without rewriting your setup.
Safe by layers
Hardware, controller firmware, Grow Core, networking, and the UI each own explicit safety responsibilities and fallbacks.
Open and understandable
Source, APIs, protocols, and device profiles are published. Every automated decision can be simulated, observed, and explained.
How it works
Intent flows down; state and safety flow up. Each layer keeps working on its own.
- 1Grow AppSetup, dashboards, alerts
- 2Grow CoreDomain model + control law
- 3Home AssistantDiscovery + protocols
- 4Grow ControllerLocal PWM + failsafes
- 5EquipmentFans · sensors · lights
Works with your gear
24 supported products across 7 categories, from the same definitions the platform uses. Browse by category, just like Home Assistant integrations.
Run the whole system without hardware
The first vertical slice runs end-to-end on a built-in simulator — see the control loop working before you flash a single ESP32.