This article was automatically translated from the original Turkish version.
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DHT11 is a digital sensor capable of measuring temperature and humidity. Due to its ease of use and low cost, it is commonly preferred in hobby projects and educational applications. It is typically used with Arduino and similar microcontroller platforms and is ideal for monitoring indoor environmental conditions.
The DHT11 sensor measures ambient temperature and humidity. These readings are displayed in real time on an LCD screen. In advanced versions, this data can be transmitted over the internet for remote monitoring.
A DHT11 sensor placed inside a greenhouse continuously monitors environmental conditions. When humidity falls below a set threshold, an automatic irrigation system is activated. Similarly, when temperature rises excessively, ventilation fans can be triggered.
A simple control system can be designed to turn a fan on or off based on humidity data from the DHT11 sensor. This system can be used to automate ventilation needs in small enclosed spaces.

Technical Specifications Table
Various Applications
Digital Weather Station with Arduino
Smart Greenhouse Monitoring System
Humidity-Controlled Fan System