VPD and Temperature-Based Controller for Humidifier, Cooler, Heater, and Dehumidifier

Overview This Home Assistant Blueprint controls a humidifier, cooler, heater, and dehumidifier as simple On/Off switches, independently based on:

VPD (Vapor Pressure Deficit) value (in kPa)

Temperature (in °C)

Humidity (in %)

Features:

✅ Humidifier Control

Turns ON when VPD exceeds the threshold.

Turns OFF when VPD drops below the threshold.

✅ Cooler Control

Turns ON when VPD exceeds the threshold.

Turns ON when temperature exceeds the threshold.

Turns OFF when temperature drops below the threshold, unless activated by VPD.

✅ Heater Control

Turns ON when temperature drops below the threshold.

Turns OFF when temperature rises above the threshold.

✅ Dehumidifier Control

Turns ON when humidity exceeds the threshold.

Turns OFF when humidity drops below the threshold.

✅ Failsafe Dummy Switch

If a device is not available, a Dummy Switch (switch.dummy_switch) is used as a placeholder to prevent errors.

✅ Automatic Updates

The automation triggers every 10 seconds to ensure real-time adjustments.