ABSTRACT
In the electronics guard against theft, there are a lot of applications of human body IR detection. Because it’s cheap price and stable technique, the IR sensors and devices are most welcome used by civil and professional applications. This project is to use a MCU of the AT89S51, and a human body IR sensor to control biography feeling machine, create automatically blunt water device. Turn electromagnetism valve ON/OFF to open or break water through copper pipe, carried out automatically blunt water control system.
