Schematic vs Circuit
1. Definition
When working with electronics, you will often see two different ways of showing a project: Schematics and Circuits.
They are closely related but serve different purposes.
- A Schematic is a drawing that shows the symbols of components and how they are connected.
- A Circuit is the real-life physical connection of those components on a breadboard, PCB, or wires.
2. Schematic Diagram
- Uses standard symbols for resistors, capacitors, LEDs, ICs, etc.
- Shows the logic and electrical connections between components.
- Helps in planning, troubleshooting, and documenting projects.
Think of it like a map of your circuit.
Example (schematic of LED + resistor):
3. Circuit (Physical Build)
- The actual hardware setup made with breadboards, jumper wires, or PCBs.
- Components are placed physically and wired together.
- May look messy, but it works exactly as the schematic describes.
📌 Think of it like the real city that the map (schematic) represents.
Example:
- Breadboard with a resistor connected to an LED and powered by a 5V supply.
4. Key Differences
| Feature | Schematic | Circuit (Physical) |
|---|---|---|
| Looks like | A symbolic drawing | Real components & wires |
| Purpose | Understanding & planning | Building & testing |
| Clarity | Very clear and simplified | Can get messy with wires |
| Where used | Documentation, design | Prototypes, final hardware |
5. Beginner Tips
- Always start with a schematic before building the circuit.
- If something doesn’t work, check your build against the schematic.
- Schematics make it easier to share projects with others.
In short: A schematic is the “blueprint,” and the circuit is the “house” you build from it.
6. Video Explanation
Video coming soon