Portable voice environment parameter tester design

1 Introduction The increasing awareness of people's health and environmental awareness has caused increasing attention to environmental parameters and their impact on the body. However, in real life, people are often surrounded by harmful gases such as gas, cigarettes, alcohol, etc.,

LED medical lighting energy-saving appeal


Unconsciously, a light-emitting diode (also known as a light-emitting diode, referred to as LED) with remarkable energy-saving characteristics plays an increasingly rich role in people's lives, the light source of a mobile phone button, the

Design of Vehicle Power System Based on ISO7637

The development of the modern automobile industry has made a large number of in-vehicle electronic devices widely used in automobiles, such as car satellite navigation systems, car audio and video entertainment systems, body lighting systems, anti-theft systems, and automatic air conditio

ZigBee realizes intelligent dimming system

The emergence of white LED lighting has solved the shortcomings of low luminous efficiency of the original lamps. However, when the outside is not particularly dark, if the indoor white LED lights are all turned on, it will cause unnecessary waste of power. Therefore,