In circuit design, there are various power symbols that often confuse people. Today, I have compiled 27 of them to share with everyone.The following V represents the meaning of Voltage.1. VCC: C can be understood as the Collector of a transistor or Circuit, referring to the positive terminal of the power supply.2. VDD: D can … Read more
RS485 interfaces form a half-duplex network, typically using a two-wire system, often employing shielded twisted pairs for transmission. This wiring method allows a maximum of 32 nodes to be connected on the same bus topology. Initially, data was output as analog signals for simple process quantities, and the RS232 interface was used for instrument connections, … Read more
The PCB is produced based on the circuit schematic. Those who have seen a circuit schematic know that it contains various physical and electrical standard symbols. By analyzing the circuit schematic, one can determine which electronic components will be used, the relationships between the components, and the performance characteristics of the circuit.To this end, I … Read more
Course Details: This course mainly introduces the development process, methods, techniques, and design concepts of STM32 microcontroller application systems through typical examples. It combines software and hardware, presenting the material in a clear and understandable manner. The course covers various technologies in microcontroller development through 26 module examples, including microcontroller interface expansion, memory expansion, input/output … Read more
CRT (Baidu Baike): The monitor, scientifically known as the “Cathode Ray Tube,” is a type of display that uses a cathode ray tube. It mainly consists of five parts: Electron Gun, Deflection Coils, Shadow Mask, High Voltage Graphite Electrode, and Phosphor Coating along with a Glass Shell. (1) I held a 15-inch Lenovo CRT color … Read more
2025 Towards the Future Together New Tian County, Yongzhou, Hunan Review of Arduino Teaching Background Review In January 2025, eight students from Tsinghua University’s Electronics Department’s “Bridge of Electronics” practical team, full of enthusiasm, went to New Tian County, Yongzhou, Hunan, to bring a four-lecture special course centered on C language fundamentals and Arduino UNO … Read more
The role of the capacitor in the 3.3V voltage regulator circuit Generally speaking, the input capacitor of a 3.3V voltage regulator chip is for filtering, while the output capacitor is to prevent oscillation and maintain voltage regulation performance. However, this is not an absolute rule; as chip designs improve and processes become more sophisticated, some … Read more
Integrated circuits are made by arranging numerous components such as resistors, diodes, and transistors in the form of a circuit on semiconductor silicon wafers, then connecting pins and packaging them. Integrated circuits are commonly referred to as integrated blocks.The LM380 shown in the figure (a) is a common audio amplifier integrated circuit, with its internal … Read more
▲ For more exciting content, please click on the blue text above to follow us! DSP can be traced back to the dawn of the digital age, possibly even earlier. If the construction of the first digital computer ENIAC in 1946 marked the beginning of the digital age, then DSP appeared two years later. In … Read more
10 Questions About Microcontroller Programming 1. What are the advantages and disadvantages of C language and assembly language in developing microcontrollers? Answer: Assembly language is the closest language to machine code, occupying less resources and having high execution efficiency, but it is not easy to port because assembly languages can differ across CPUs. C language, … Read more