Design and Development of an Indoor Environmental Comfort Measurement Device for Ergonomic and Health Aspects

Abstract

This study aims to design and develop an Arduino-based indoor environmental comfort measurement device considering ergonomic and health aspects. The device is equipped with a DHT22 sensor for measuring temperature and humidity and a BH1750 sensor for measuring light intensity in real-time. Measurement data are displayed as running text on a dot matrix LCD connected to an Arduino Uno R3. Testing of the BH1750 sensor shows the device can measure light intensity stably and consistently, with quick response and minimal delay, reflecting real lighting conditions. Testing of the DHT22 sensor demonstrates the device can provide temperature readings averaging 29.80°C and relative humidity of 84.00% Rh with good accuracy compared to a reference thermohygrometer. The device operates stably with a 5 Volt DC power supply. Product validation confirms reliability in various indoor environmental conditions. Future improvements include adding sensors for additional comfort parameters such as air quality and noise, as well as integration with smart home systems for automatic environmental control based on acquired data.