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Smart home automation recipes and local sensing chains — HearthNodes

HearthNodes publishes working smart-home automation recipes: trigger, conditions, actions, hardware and the exact YAML. Filter by protocol, follow the topology, copy the recipe.

Whole-site topology · click any node to open its recipe static topology export ↗

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Light

Light and daylight

1

Twilight path lighting keyed to sun elevation, not a clock Garden path lights come on when the sun hits -4° elevation and dim to 30 % at -12°, so the transition takes 25–40 minutes depending on the season and never looks like a switch was thrown. zwave 30000 ms 2026-09-07

Water

Water and leak

1

Leak-triggered main shutoff with a 4 litre flow threshold Six leak pucks plus a whole-house flow meter close the main valve when any puck gets wet, or when flow exceeds 4 L/min for 12 minutes with no fixture in use. Measured shutoff time from water contact to closed valve: 9 seconds. zwave 9000 ms 2026-08-30

Safety

Access and safety

1

Smoke and CO alarm: egress lighting, unlock, and silencing the HVAC When any interconnected alarm sounds, the house lights the egress path to 100 %, unlocks the front door, opens the garage, stops the HVAC fan and silences the boiler — in that order, all within 4 seconds, and independently of any cloud service. zwave 4000 ms 2026-09-13