1. Header file: #include (I am using STC 89C54RD+) 2. Predefined: sbit LED = P1^0 // Define bit 0 of port P1 as LED Note: The notation “P1^0” is different from A51 (A51 uses P1.0). P1 is a group of ports, with port numbers ranging from 0 to 7. Note 2: sbit is used to … Read more
As an electronics professional, have you studied microcontrollers? Can you apply microcontrollers?I believe you have studied them, but may not necessarily be able to apply them.Learning microcontrollers requires more effort and cost than studying other subjects; it involves not only theoretical knowledge but also practical exercises, and it is primarily through practical operations that one … Read more
A major feature of MakeCode is its ability to enable programming through a graphical interface, making programming simple and enjoyable. Additionally, MakeCode can be extended with various functionalities through packages, allowing connections to various sensors and modules. This not only fully utilizes the convenience of graphical programming but also offers unlimited extensibility, broadening its application … Read more
01 Introduction The mercury switch is a sensor that utilizes the excellent conductivity and fluidity of mercury to control circuit switching. It consists of a glass tube, mercury, fixed electrodes, and leads. 02 Principle Mercury Mercury is a chemical element, element number 80 in the periodic table, commonly known as quicksilver. Its chemical symbol is … Read more
Lesson 1: Traffic Lights 2018/10/15 Students, traffic lights are not unfamiliar to us; their existence makes our traffic life safer and more orderly. Do you know who invented the first traffic light? Let’s find out together. In 1868, British mechanical engineer J. P. Knight installed the world’s first gas-powered traffic light in front of the … Read more
In 2025, Python programming has become an indispensable skill in many fields, whether it is data analysis, artificial intelligence, web development, or office automation, Python has demonstrated its powerful capabilities. Below is a detailed Python programming beginner’s guide to help you grow from a novice to an expert. 1. Basic Introduction (1) Environment Setup Select … Read more
Comprehensive Analysis of Python Tuples Built-in Functions # Get the length of the tuple score = (90, 85, 92, 88) print(len(score)) # Output 4 # Extreme value calculations t = (25, 28, 22, 30) print(max(t)) # 30 print(min(t)) # 22 print(sum(t)) # 105 Common Methods tp = (10, 20, 30, 20, 40) print(tp.index(20)) # Output … Read more
Basic Introduction to File Operations The open() function in Python is used to open a file and create a file object, which can then be used to read and write data. Control the mode of reading and writing file content: t and b (t and b cannot be used alone, they must be combined with … Read more
Detailed Explanation of Python Dictionary Methods Dictionary Object Methods clear() Function: Clears all key-value pairs in the dictionary Example: # Example 1: Clear an existing dictionary d = {'a':1, 'b':2} d.clear() print(d) # {} # Example 2: Operation on an empty dictionary d = {} d.clear() print(d) # {} # Example 3: Clear and then … Read more
This is a compilation of the “Python Memorization Manual” meticulously organized by a ByteDance expert, often referred to as the “New Dictionary of Python.” It encompasses all commonly used foundational knowledge and syntax, presented in an easy-to-understand manner, which can help you easily grasp the basics of Python as follows 🗒: Chapter 1 – Introduction … Read more