This article begins by introducing microcontrollers from the perspective of integrated circuits, mainly covering the pin diagram and functions of microcontrollers, as well as basic programming. First, let’s take a look at the functional block diagram of the 80C51 microcontroller. The 80C51 microcontroller belongs to the MCS-51 series and uses a 40-pin dual in-line package … Read more
Since the introduction of PLCs in the 1960s in the United States to replace traditional relay control devices, PLCs have rapidly developed and been widely applied around the world. At the same time, the functions of PLCs have continuously improved. With the ongoing advancements in computer technology, signal processing technology, control technology, and network technology, … Read more
1. Introduction Many beginners in microcontrollers often ask me, “I am currently a microcontroller beginner, how can I learn it faster? Where should I start?” Regarding this question, I would like to share my thoughts on how I learned microcontrollers, how to get started, and how to become proficient. First, let’s talk about microcontrollers. The … Read more
Click the blue text to follow us Today, we will analyze a classic microcontroller power supply circuit. The circuit schematic is shown in the figure below: ▲ Simplified switch circuit Before powering the circuit, the switch “TEST” is open, and the microcontroller is not powered through VCC. At this time, the base of T1 is … Read more
Must-See! Four Key Development Techniques for Microcontrollers In microcontroller application development, issues such as code efficiency, anti-interference capability, and reliability still pose challenges. Here are several fundamental techniques that should be mastered in microcontroller development. 01 How to Reduce Bugs in Programs To reduce bugs in programs, one should first consider the following out-of-range management … Read more
The 80C51 microcontroller is a classic 8-bit microcontroller released by Intel many years ago. It is widely used in various embedded systems and integrates multiple functions such as CPU, memory, and I/O interfaces. It can connect and communicate with external devices through specific pins. This article will introduce the pins and functions of the 80C51 … Read more
Having worked in the embedded industry for seven or eight years, I would like to share some hardware circuit design schemes and insights for those who are new to embedded systems. 1. Key Circuit R1 Pull-up Resistor: It clamps the uncertain signal to a high level through a resistor, maintaining it in a non-triggered state … Read more
Bus: Refers to the information transmission line that serves multiple components. In microcomputer systems, various components communicate with each other through the bus. Address Bus (AB): The address bus is unidirectional and is used to transmit address information. The width of the address bus is 16 bits, thus allowing direct addressing of 64K external memory. … Read more
With the development of the times, microcontrollers have become one of the essential learning topics for many electronic engineers. However, learning microcontrollers is not easy. If you master the following eight knowledge points or techniques, learning microcontrollers will be much more efficient! 1. Choosing Pull-Up ResistorsIn microcontroller circuits, the choice of pull-up resistors is very … Read more
This Session’s Learning Implementing Two Lines of Different Content on LCD Using Code Knowledge Points for This Session: Understand how to achieve a two-line display effect on the LCD (the last learning session of microcontrollers this semester) Learning Tools: Computer, Keil uVision4 software, Proteus software Microcontroller Explanation After several weeks of studying microcontrollers, I believe … Read more