SPOS Circuit Solver

SPOS Circuit Solver — A comprehensive application for analyzing and solving electrical and electronic circuits, designed specifically for students, teachers, and engineers. The application works entirely offline.

SPOS Circuit Solver

A complete application for analyzing and solving electrical and electronic circuits, designed specifically for students, teachers, and engineers. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🎯 Key Features

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📐 Interactive Circuit Editor

• Over 56 electrical and electronic components: voltage and current sources, resistors, capacitors, inductors, transistors (BJT, MOSFET, JFET), logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR), measuring instruments (voltmeter, ammeter, ohmmeter, wattmeter, oscilloscope), transformers, relays, switches, connection points, and more

• Intelligent wire routing that automatically avoids breaks and other wires

• Distinctive amber solder points at wire junctions

• Drag and drop to move components

• Touch zoom

• Rotate components by 90°

• Add/delete/duplicate components

• Keyboard shortcuts (R to rotate, W to connect, Delete to delete)

⚡ Instant circuit solving

• Modified Nodal Analysis (MNA) solver to solve any circuit, no matter how complex

• Clear display of currents, voltages, and power for each component

• Step-by-step explanation (7 complete tutorial steps):

1. Component analysis

2. Source identification

3. Equivalent resistance

4. Applying Ohm's law

5. Power calculation

6. Values ​​of each component (V, I, P)

7. Energy Conservation Verification

• Live Simulation: LED Glow, Motor Rotation, Resistor Heat, Current Flow

• Bode Plot Analysis (Frequency Response) of AC Circuits

• Transient Analysis (Transient Response) of RC/RL Circuits

• Support for AC with Complex Impedance

📚 Integrated Learning Tools

• Resistor Color Code Calculator (4 & 5 Rings) — Visual display of resistance with tolerance

• Comprehensive Unit Converter (7 categories: Resistance, Voltage, Current, Capacitance, Inductance, Power, Frequency)

• Printable Quick Formulas Card — All formulas on one page

• Glossary (Arabic-English) with over 40 terms, symbol, unit, and definition

• Random Exercise Generator with 3 difficulty levels:

✓ Easy: Ohm's Law, Power, Series/Parallel, Voltage Divider

✓ Medium: Mixed Circuits, Branch Current, KVL, Total Power

✓ Very Hard: Wheatstone Bridge, 5-Element Complex Networks, Multiple Sources, Transformation Networks

📖 Comprehensive Learning Library

• 14 ready-made examples with previews + quick name search

• 5 virtual lab experiments (Ohm's Law, voltage divider, series, parallel, LED)

• 3 historical circuits with historical context explanations:

- Original Ohm's Circuit (1827)

- Whetstone Bridge (1843)

- Classical Voltage Divider

• Laws Library with explanations and solved examples (10 laws)

• Interactive Laws Calculator (22 calculators in 7 categories)

🎯 Practice and Challenge

• 9 interactive challenges with best time tracking for each challenge

• Interactive quizzes with varied questions (easy/medium/hard)

• Endless random practice exercises before quizzes

• Detailed statistics: solved circuits, built, completed challenges, consecutive days

• Achievement badges (first circuit, expert analyst, quiz champion, challenger)

• Share achievements with friends

📤 Share and Export

• Camera QR scanner — exchange circuits between devices without Internet

• Export PNG (High-quality image with app logo)

• Export SVG (Editable vector graphic)

• Export PDF (Full report in Arabic with integrated fonts)

• Copy/Paste to Clipboard (with backup manual paste for Android)

• Export Arduino code (.ino)

• Export Python code (SymPy)

• Share solutions and achievements on social media

• Share the app with friends

👨‍🏫 Teacher Mode

• Zoom in on text for classroom presentations

• Hide answers (students solve manually)

• Quiz Mode (hide formulas and explanations)

• Highlight a specific wire

• Quick View button activates 3 options with one tap

🌐 Supports

• Arabic (RTL) and English (LTR) — Instant switching

• Dark and light modes

• Works 100% offline after installation

• Responsive design for phones and tablets

• Splash screen Customized

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📋 App Information

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• Developer: SPOS Systems

• Version: 1.0.0

• Size: ~8 MB

• No internet connection required

• Category: Education

• Website: https://circuitsolver.tools.spos.ly/

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🔑 Required Permissions

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• Camera: For scanning QR codes (optional)

• Storage: To save images and PDF files

• Internet: For internal web view only

【Keywords】

Electrical circuits, circuit solver, law Ohm, Kirchhoff, circuit simulation, electronics, circuit solver, circuit analysis, electrical engineering, physics, resistor