Abstract: Effective waste management is a significant challenge in urban/rural environments, driven by increasing population density and waste generation. This paper aims to enhance the management of ...

This project utilizes an Arduino Uno CH340G development board paired with a DHT11 temperature and humidity sensor to create a compact yet capable environmental monitoring system. It measures ambient ...

Abstract: Light source and photodetector are necessary elements for liquid concentration sensing system. Normally, two different devices are needed to realize these functions. The coexistence of ...