The Design of the Noise Detector Based on AT89C52 Microcontroller

This paper describes the performance and characteristics of AT89C52 micro controller, and the author has designed a kind of noise detector, which has the character of low-cost, high precision, miniature, using AT89C52 micro controller as the core component. The detector is used in the workplace, squares and other public places to detect the size of the noise, providing the basis for control of noise.