Abstract
Humans spend most of their lives indoors. A comfortable environment contributes to human health, but an indoor environment can change due to various factors. Monitoring indoor temperature, humidity, and dust concentration can help people improve the environment through various measures based on the current values. The author designed a circuit using Arduino and sensors to detect and visualize the values. In this study, two sensors, SHTC3 and GP2Y1014AU0F, were used for the measurements. And LEDs and speakers were used as indicators. The author used the brightness of the LEDs to show the values of temperature and humidity. The author used a speaker to play a melody to remind people to open the windows or turn on the purifier when the particle dust exceeds the normal range in the room. This detection device can help people to detect the environment and alert them simultaneously in order to continuously maintain a good and healthy indoor environment.
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