D38999/20JD19BD

We will see all kinds of boxes, big and small, some with holes, some with slits, some with open backs, and some with various uncommon names. What do they look like and what are their characteristi...[Details]

　　When repairing televisions and electrical equipment, you will encounter damage to various components, including MOS tubes. This is how our maintenance personnel use commonly used multimeters to jud...[Details]

Composition of an oscilloscope - What parts does an oscilloscope consist of? In digital circuit experiments, several instruments and meters are needed to observe experimental phe...[Details]

　　Mobile devices are becoming an integral part of our daily lives. Take smartphones, for example. In addition to simple phone calling, smartphones now have rich features that support social networkin...[Details]

(1) For high resistance, it is normal for the resistance test results to be different from the pointer meter test results. This is mainly due to slightly different test conditions. (2) When testing ...[Details]

Trend 1: From parallel measurement to serial measurement Embedded designs in the past often used parallel architectures, which meant that each bus component had its own path. Therefore, as long as yo...[Details]

This article introduces MCU chips in the four domains of body, chassis, power, and cockpit from four dimensions: work requirements, performance requirements, industrial structure, and industry barr...[Details]

1. Battery Charger Test  After the rechargeable battery is discharged, it needs a charger to charge it. A good charger should be able to provide a constant current for charging, and automatically sto...[Details]

1. Overview Permanent magnet brushless DC motor (PM-BLDC), due to its many inherent characteristics and my country's abundant rare earth resources, is considered by many motor experts to be a ...[Details]

Since 2010, advanced countries such as Europe, the United States, and Japan have successively implemented laws to ban incandescent bulbs. The reason for the laws is to restrict light sources with low ...[Details]

GPIB is a bus that connects devices to computers. Most desktop instruments are connected to computers via GPIB cables and GPIB interfaces. This paper introduces the GPIB bus interface technology of...[Details]

        I recently used the I2C bus of LPC2214. At first, I felt it was very inconvenient to use PHILIPS because it had to read the value from its status to make a judgment. This invisibly increased t...[Details]

Each button corresponds to an LED light, realizing independent switching of the light. Source code: ** #include reg51.h #define uint unsigned int #define uchar unsigned char //Define the button po...[Details]

On April 7, Mao Weiming, Chairman and Party Secretary of State Grid Corporation of China, and Xin Baoan, General Manager and Deputy Party Secretary, conducted a video survey of the State Grid North...[Details]

First, in the previous example, add the dma.c file to the dev folder, and then add it to the Makefile in that directory: This is the framework. Next, open dma.c to implement it: ...[Details]