---
title: "Smart Home Cooling | Sobhan Heravian"
description: "Measures temperature and humidity, then decides whether to run the evaporative cooler, the air conditioner or both, and at what power."
url: "https://sobhan.heravian.com/projects/smart-cooling/"
lang: "en"
---

# Smart Home Cooling System

Many homes have two ways to cool down: an evaporative cooler (water and pads), which is cheap to run but loses its effect in humid air, and a compressor air conditioner, which works in any humidity but uses far more power. This controller makes the choice between them automatically.

Sensors measure the indoor temperature and humidity. From these readings the controller decides which system to switch on and sets each one's output as a percentage of full power, instead of simply turning it on and off.

## At a glance

- Temperature and humidity sensing.
- Chooses the evaporative cooler, the air conditioner, or both.
- Power set as a percentage, not just on and off.

---

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