Ultrasonic sensors have the characteristics of high measurement accuracy, stable operation, and temperature compensation. They are widely used in manufacturing, power, metallurgical measured building materials, chemicals, food, automobiles, warehousing, ships, ships, textiles, transportation, explor

Due to the influence of COVID-19, "body temperature measurement" is already a daily need of people. Therefore, the forehead thermometer is another popular product after masks, alcohol, disinfection water and other epidemic prevention materials.The circuit of the forehead gun is relatively simple. It

If you are designing various products (such as home appliances or reliable access control systems, etc.), you should choose a good quality SMD buzzer as the main way to interact with different users. As outlined by www.manorshi.com, you need to understand and master the parameters of the SMD buzzer