Circuit Simulator

A circuit simulator that provides an intuitive platform for designing, modifying, and solving simple DC circuits.

Features

• ✅ Interactive Circuit Design: Create circuit elements like resistors, voltage sources, current sources, wires, and ground on a user-friendly grid interface.

• ✅ Efficient Value Input: Update circuit element values directly with support for metric prefixes (e.g., k, M, µ) for precision.

• ✅ Seamless Input Navigation: Quickly switch between circuit elements to modify values.

• ✅ Multiple Circuits: Design and solve multiple circuits simultaneously within a single canvas.

• ✅ Easy Circuit Solving: Solve the circuit and hover over nodes and elements to view detailed information like voltage and current values.

• ✅ Error Detection: Automatically identifies and alerts you to invalid circuit configurations.

• ✅ Camera Control and Zoom: Adjust the view and zoom level to easily navigate and manage large circuits.

• ✅ Undo/Redo Actions: Effortlessly correct mistakes with undo functionality.

User Guide

1. Creating a Circuit Element

• Start Drawing: Click on any grid intersection to begin creating a circuit element. The element will extend from the clicked intersection to the mouse cursor position.
• Cancel Creation: Right-click or press Ctrl + Z to cancel the creation.
• Complete Element: Click on another grid intersection to finalize the circuit element.
• Switch Elements: Press the first character of a circuit element to switch to its drawing mode:
  • R: Resistor
  • V: Voltage Source
  • C: Current Source
  • W: Wire
  • G: Ground

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2. Modifying Circuit Element Values

• Single Element Input:

  • Left-click on the element to enter input mode.
  • Type the desired value and press Enter (metrix prefixes can be added at the end).
  • Supported metric prefixes include:
    • p: $10^{-12}$
    • n: $10^{-9}$
    • µ: $10^{-6}$ (write u instead of µ)
    • m: $10^{-3}$
    • k: $10^3$
    • M: $10^6$
    • G: $10^9$

• Multiple Elements Input:

  • Press Tab to navigate to the next element.
  • Press Shift + Tab to navigate to the previous element.
  • Input mode exits when:
    • Enter is pressed.
    • Shift + Tab is pressed on the first element.
    • Tab is pressed on the last element.

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3. Solving the Circuit

• Solve Command: Press Ctrl + Enter to solve the circuit (multiple circuits can be solved in one canvas).
• View Results:
  • Hover over nodes to see nodal voltages.
  • Hover over elements to view voltage differences and currents.
• Error Handling: Invalid circuits will display an error message.

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4. Extra Features

• Camera Controls:
  • Move the view: Hold Right Click and drag the mouse.
  • Zoom in/out: Use the mouse wheel or press Ctrl + = / Ctrl + -.
• Undo Actions: Press Ctrl + Z to undo the last action.

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5. Shortcuts Summary

Action	Shortcut
Draw Resistor	R
Draw Voltage Source	V
Draw Current Source	C
Draw Wire	W
Draw Ground	G
Cancel Element Creation	Right Click
Enter Input Mode	Left Click on Element
Enter Input Mode for First Element	Tab
Navigate to Next Element	Tab
Navigate to Previous Element	Shift + Tab
Solve Circuit	Ctrl + Enter
Move Camera	Right Click + Drag
Zoom In/Out	Mouse Wheel / Ctrl + = / Ctrl + -
Undo Last Action	Ctrl + Z

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Project Setup

Steps

1. Install Raylib on your system:

One of the easiest ways to install Raylib is using vcpkg Follow this video for instructions: here

2. Clone the repository:

3. You’re done!:

Run the project via Ctrl + F5.