Unconsciously, EE Water Army (EEWORLD Development Board Exchange) has been established for nearly 5 years. From the beginning to today, it has brought together more than 500 electronic bragging enthus
In the schematic diagram of products with metal housings and metal housings for connectors on PCB boards, there is often a capacitor of several nF in parallel with a 1M resistor, which is used to conn
According to data released by the National Bureau of Statistics, the number of civilian cars in my country reached about 260 million at the end of 2019. Although the development speed has slowed down