1.1 MCU Principles and Applications+ 1.2 The Minimum System of an MCU+ 1.3 Common Terms in Computing+ 1.4 Basics of C51 for MCUs+ 1.5 Using Keil uVision5+ 1.6 Using the Proteus Simulation Software+ 2.1 Lighting Up an LED+ 2.2 Delayed Flashing of LEDs+ 2.3 Design of Water Lamp Circuits+ 2.4 Design of Traffic Light Control Circuits+ 3.1 Design of Independent Control for LEDs with Buttons+ 3.2 Design of Stage Lighting Control+ 3.3 Interrupt System of MCUs+ 3.4 Timer/Counter+ 3.5 Applications of the Timer/Counter+ 3.6 External Interrupts+ 4.1 Static Display of a Single Digit on a Display+ 4.2 Countdown Display from 9 to 0 on the Displays+ 4.3 Dual-key Control of Displaying Different Numbers on a Single Display+ 4.4 Use a Timer to Achieve a 1-second Sequential Display from 0 to 9+ 4.5 Recognition of Matrix Keyboards+ 4.6 Control a Single Display Output with a Matrix Keyboard+ 5.1 8-Digit Display Dynamic Scanning+ 5.2 Calculation and Display of Seconds+ 5.3 Dynamic Refresh Display of Numbers+ 5.4 Calculation and Display of Hours, Minutes, and Seconds+ 5.5 Button Adjustment of the Digital Clock Time+ 5.6 Implementation of Alarm Clock Functionality+ 5.7 Implementation of the Alarm Clock Sound Function+ 6.1 Basics of LED Dot Matrix+ 6.2 Showing Numbers on an 8x8 Dot-Matrix Display+ 6.3 Showing Chinese Characters on a 16x16 Dot-Matrix Display+ 6.4 Showing Multiple Chinese Characters or Graphics on a Dot-Matrix Display+ Course Overview+