Designing A Room Comfort Measurement Tool Based on ESP32 Microcontroller for Thermal, Auditory and Visual Comfort

Abstract One of the devices that is frequently used with IoT is microcontrollers, as they are readily available. The devices are also commonly used in sustainable buildings to monitor and control environment parameters such ambient temperature, room lighting, which can improve the energy performance of the building. The purpose of this research is to use the ESP32 to develop a room comfort monitoring system. This study was conducted at the North Bogor Community Health Center (puskesmas) and the IPB University Advanced Research Laboratory. The DHT22, KY-038 and BH1750 sensors were attached to with the ESP32, and the prototype was created and put into use as a programming-controlled monitoring system. Performance tests were carried out to evaluate the Puskesmas waiting room’s comfort level and calibrate the sensors. Following calibration, the temperature sensor’s error value is 2.03%, the relative humidity sensor’s is 2%, the noise sensor’s is 3.15%, and the light intensity sensor’s is 9%. The findings from the ESP32-based comfort measurements reveal that the temperature falls into an uncomfortable range, with an average of 27.87 °C; relative humidity also resides in an uncomfortable zone, averaging 70.17%; noise levels, however, remain within comfortable limits at an average of 56.12 dB; and light intensity is uncomfortably high, with an average of 80.99 lux. The use of microcontroller to monitor and control environmental parameters could help building manager optimize electricity usage, leading to significant cost savings while also reducing the carbon footprint of the building.