






Innovation Classroom
Lesson Five
Mechanical Society

Microcontroller Basics and Circuit Diagrams
Class Information
Instructor: Shao Ziyang
Location: Room 507, Building 37
Date: November 22 (Friday) at 6:30 PM
Class Content
01
Understanding Microcontroller Basics
First, Minister Shao introduced the unique position of microcontrollers as microcomputers, analyzing their basic structure, including core components like CPU, memory, and I/O interfaces; he led the members to interpret the operational diagram, revealing how microcontrollers efficiently execute instructions to achieve intelligent control.

02
Mainstream Microcontroller Classification and Selection Guide
Next, Minister Shao introduced mainstream microcontrollers such as 51, Arduino, STM32, ESP, and analyzed the differences between different models of STM32, then used STM32F103ZET6 as an example to explain the factors to consider when selecting a microcontroller, helping to accurately match project requirements.
03
Detailed Explanation of Microcontroller Interfaces and Manual Usage Tips
Then, he listed and explained common types of microcontroller interfaces, such as I/O, communication, timers, etc.; explained how to quickly locate and understand specific pin functions in the datasheet based on project needs; and emphasized that the datasheet is an indispensable tool for microcontroller development, which can improve development efficiency.

04
Simple Project Explanation of Microcontrollers
Immediately after that, he introduced some simple projects involving microcontrollers, including servos, motors, and four-channel infrared sensors (in the form of circuit diagrams), and introduced concepts such as voltage regulators and motor drivers during the drawing of the complete circuit.

05
Using Breadboards
Finally, Minister Shao explained the internal structure of the breadboard and how it supports flexible and quick circuit connections.
Reflections
Through this learning journey, students not only mastered the core theoretical knowledge of microcontrollers but also gained a clearer and deeper understanding of the practical applications of microcontrollers through physical demonstrations. This combination of theory and practice provides strong support for students’ future exploration and development in the field of intelligent creation. Whether continuing to delve into microcontroller technology or applying it to practical projects, this learning experience will become their valuable asset and starting point.
Image Source| Mechanical Society
Editor| Zhao Mingyu
Reviewer| Gu Wenshan

