Lesson Notes By Weeks and Term v4 - SHS 2

Lesson Video

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Performance objectives

• Describe the basic functions of combinational logic circuits.
• Identify the applications of microcontrollers in everyday devices.
• Construct a simple combinational logic circuit.
• Analyze the operation of a given logic circuit.
• Design a simple project using an Arduino microcontroller.

Lesson summary

In today's world, we are surrounded by "smart" devices. From the mobile money transactions on our phones to the traffic lights that control our busy roads in Accra or Kumasi, digital electronics is the brain behind the operation. These devices make decisions based on inputs. This lesson will introduce you to two key building blocks of this digital world: combinational logic circuits, which perform basic logical operations, and microcontrollers, which are tiny computers that can be programmed to solve real-world problems in our communities.

Lesson notes

Part 1: Combinational Logic Circuits

A combinational logic circuit is a type of digital circuit where the output at any given time depends *only* on the combination of inputs at that same time. It has no memory of past inputs. Think of a simple calculator: when you press `2 + 3`, the answer `5` appears immediately based on those inputs, not on what you calculated before.

Two fundamental applications of combinational logic are binary adders.

A. The Half-Adder

Evaluation guide

• Physics
• 117 Describe c ombinational logic applications and microcontroller.
• Talk for Learning: Describe and explain the function of a given combination logic circuit.
• Project -Based Learning: Learners in groups of mixed abilities describe the features and