Classroom lighting device based on human body infrared pyroelectric sensor module control

A classroom lighting device based on human body infrared pyroelectric sensor module control is composed of a lightening network module, a single chip microcomputer controlled relay module and a human body infrared pyroelectric sensor module detection module. A live wire, a mechanical switch, a lightening lamp, a relay normally open end and a zero line in the lightening network module are sequentially connected. A P2^0 pin, a resistor and the base of a triode in the single chip microcomputer controlled relay module are sequentially connected, and the emitter of the triode is connected with the control end of the relay. The output end of a human body infrared pyroelectric sensor detection module, a resistor and the base of an NPN triode in the human body infrared pyroelectric sensor module detection module are sequentially connected, and the P2^1 of a single chip microcomputer is connected with the collector of the NPN triode.