ā New to Electronics?
Not Sure Where to Start? We've Got You.
Every guide includes a live circuit simulation you can run and modify right now ā no account, no download. Follow this path if you're starting from zero:
Step 1
š° Electronics for Beginners
Voltage, current, resistance ā the three fundamentals
Step 2
ā” Ohm's Law
V = I Ć R ā simulate it live and see it work
Step 3
š Series vs Parallel
How connecting components changes everything
Step 4
š Capacitors
Energy storage, RC time constant, filter uses
Step 5 ā First Real IC
ā± 555 Timer
Build an LED flasher ā your first real circuit project
// shareable resources
Comparison & Reference Pages
Reference Ā· Shareable
š Top 10 Circuits Every Student Should Know
The 10 most important circuits ā each with a live simulation, step-by-step guide link, and why it matters. Perfect to share or bookmark.
Comparison Ā· 2026
š Best Multisim Alternatives 2026
Honest comparison of every Multisim replacement after the September 2026 shutdown ā free and paid, browser and desktop.
// guided simulations
Step-by-Step Build Guides
Beginner Ā· Guided
ā” Build an LED Flasher
555 timer LED flasher with Mermaid diagrams, full calculations, and common mistakes.
Beginner Ā· Guided
š§ Build a Voltage Divider
Calculate, build and test a voltage divider. Includes loading effects and 5Vā3.3V level shifting.
Beginner Ā· Guided
š Capacitor Charging
RC time constant explained with oscilloscope simulation. Watch exponential charging in real time.
Intermediate Ā· Guided
š Build an RC Filter
Low-pass and high-pass filters with cutoff frequency calculations and phase shift analysis.
Intermediate Ā· Guided
š” Build a Transistor Switch
NPN switch with base resistor calculation, flyback protection, and MOSFET comparison.
Intermediate Ā· Guided
š” Build a Bridge Rectifier
Full-wave bridge rectifier with filter capacitor. The basis of every mains power supply.
Beginner Ā· Guided
š„ Logic Gates Step by Step
AND, OR, NOT, XOR gates with interactive truth tables and how to build any gate from NAND.
// start here
Beginner Guides
Beginner Ā· Start Here
Electronics for Beginners
Voltage, current, resistance, and core components. Everything you need to start from zero.
Beginner Ā· Getting Started
How to Use the Circuit Simulator
Full walkthrough of the simulator interface, tools, and controls for new users.
Beginner Ā· Fundamentals
Ohm's Law Explained
Understand voltage, current and resistance by watching them interact in a live simulation.
Beginner Ā· Fundamentals
Series and Parallel Circuits
The two ways to connect components and how voltage, current, and resistance behave in each.
Beginner Ā· Fundamentals
Voltage Dividers
Calculate output voltage, understand loading effects, and learn practical applications.
Beginner Ā· Components
Capacitors Explained
How capacitors work, RC time constant, types, and common uses including decoupling and filtering.
Beginner Ā· Components
Diodes Explained
How diodes work, Zener diodes, LED current limiting, rectifiers, and protection circuits.
Beginner Ā· Digital
Logic Gates Explained
AND, OR, NOT, NAND, NOR, XOR gates with truth tables and interactive simulations.
// go deeper
Intermediate Guides
Intermediate Ā· Analog
555 Timer Circuit Guide
Astable, monostable, bistable modes with frequency calculations and real-world applications.
Intermediate Ā· Analog
Op-Amp Circuits
Six essential configurations ā inverting, non-inverting, follower, summing, differential, comparator.
Intermediate Ā· Analog
RC Low-Pass and High-Pass Filters
Cutoff frequency calculations, filter rolloff, and practical signal processing applications.
Intermediate Ā· Components
Transistor as a Switch
NPN BJT switch design, base resistor calculation, and driving motors and relays safely.
// migration & comparison
Tools & Resources
Info Ā· Migration
Best Free Multisim Alternative 2026
Multisim Live is shutting down. Everything you need to know about switching to a free browser alternative.
Info Ā· Comparison
Best Free Circuit Simulators 2026
Comparing FreeCircuitSim, Falstad, LTspice, EasyEDA and Tinkercad ā which is right for you?