A design of intelligent range hood based on Arduino

This paper designs and implements an intelligent hood control system based on Arduino, which is composed of multiple modules, including gas detection and human body sensing, with a single-chip microcomputer as the core. The system monitors the oil smoke, natural gas concentration, and temperature and humidity changes in the kitchen in real-time using high-precision sensors. The analog signals are digitized by the A/D conversion module and sent to the single-chip microcomputer for processing. The single-chip microcomputer controls the fan speed precisely by pulse width modulation according to the smoke, gas concentration, and temperature data, achieving intelligent adjustment and efficient exhaust. The system has the characteristics of fast response, precise regulation, and energy saving and environmental protection, effectively improving the air quality in the kitchen and user experience.