The Ultimate EveryCircuit Manual: Master Interactive Circuit Simulation EveryCircuit is a powerful, interactive circuit simulator used by students, hobbyists, and professional engineers worldwide. Unlike traditional, text-heavy SPICE simulators, EveryCircuit brings components to life with real-time animations of voltage and current. This comprehensive manual covers everything from basic navigation to advanced circuit analysis, helping you unlock the full potential of the platform. 1. Getting Started: The User Interface Understanding the workspace is your first step toward building flawless simulations. The EveryCircuit interface is split into three main areas. The Schematic Editor This canvas is your primary workspace. Drag, drop, and connect components here. Use two fingers to pinch and zoom, or drag to pan across large schematics. The Component Palette Located at the top or side of your screen. Contains categorized electrical components (Sources, Passives, Semiconductors, Digital). Tap any icon to immediately drop that component onto the canvas. The Simulation Engine & Scope The Run/Pause button controls the live simulation. The Time Speed Slider adjusts how fast the animation runs. The Oscilloscope panel appears at the bottom when you select a component and tap the "Eye" icon. 2. Component Management and Editing Building a circuit requires precise component placement and configuration. Adding and Moving Components Tap a component in the palette to place it. Drag a component with your finger or mouse to reposition it on the canvas. Use the Rotate button (circular arrow) to turn a component 90 degrees clockwise. Use the Flip button to mirror asymmetrical components like transistors or diodes. Wiring Components Tap a terminal (the open dot) on any component. Tap a terminal on another component to automatically route a wire. To create custom wire paths, tap an empty space on the canvas to create an anchor point before tapping the destination terminal. To delete a wire or component, select it and tap the Trash Can icon. Adjusting Parameter Values Select any component to open its properties. Tap the Gear or Wrench icon to reveal the virtual adjustment wheel. Turn the wheel clockwise to increase values and counterclockwise to decrease them. EveryCircuit uses standard engineering notation (e.g., for milli, for micro, for mega). 3. Understanding the Visual Language EveryCircuit stands out because it visualizes invisible electrical forces. Learning to read these animations makes debugging intuitive. Voltage Visualizations Color Coding: Green represents positive voltage. Gray represents zero volts (ground). Orange/Red represents negative voltage. Brightness: The intensity of the color indicates the magnitude of the voltage. A bright green wire carries high positive voltage. Current Visualizations Moving Dots: The small dots moving along the wires represent conventional current flow (from positive to negative). Speed: The speed of the dots is directly proportional to the amount of current (amperes) flowing through that branch. Direction: If the dots reverse direction, your current has changed direction (essential for visualizing alternating current). 4. Advanced Simulation and Analysis Once your circuit is built, use EveryCircuit’s analysis tools to extract precise technical data. Virtual Oscilloscope (The Waveform View) Select any component, node, or wire. Tap the Eye icon to map its electrical behavior onto the oscilloscope. Multiple signals can be tracked simultaneously in different colors. Tap the scope screen to pause the waveform, zoom in on specific peaks, or measure time intervals. Interactive Tuning You do not need to stop the simulation to change component values. Spin a resistor value wheel while the simulation runs to watch an LED dim or brighten in real time. This feature is invaluable for tuning filter frequencies or adjusting transistor biasing. Common Components Reference Component Type Parameters to Adjust Key Visual Indicator DC Source Constant dot speed and wire color AC Source Frequency ( ), Amplitude ( Alternating dot direction and pulsing color Resistor Resistance ( Ωcap omega Slows current dots down Capacitor Capacitance ( Shows charge building up on plates Inductor Inductance ( Visualizes magnetic energy storage delay Diodes / LEDs Forward Voltage ( Emits visual light when forward-biased 5. Troubleshooting Common Simulation Errors If your circuit isn't behaving correctly, check for these common user errors. The "Floating Node" Error Symptom: The simulator freezes, throws an error, or shows erratic voltages. Fix: Every circuit must have a Ground (GND) component. The simulator requires a zero-volt reference point to calculate all other voltages. Ensure at least one ground icon is wired to your circuit. Short Circuits Symptom: Current dots move at infinite speed, and a warning may appear. Fix: Look for wires connecting a voltage source directly to a ground or another voltage source without a resistor to limit the current. Convergence Errors Symptom: The simulation slows down to a crawl or stops. Fix: This happens during rapid transitions (like a perfect switch opening instantly). Add a tiny resistor (e.g., ) or a small capacitor to soften sharp electrical spikes, giving the mathematical engine realistic parameters to calculate. 6. Tips for Power Users Maximize your efficiency with these workflow shortcuts: Custom Labels: Double-tap a component to rename it. Labeling inputs, outputs, and nodes keeps your workspace organized. Community Cloud: Use the cloud icon to save your creations to the public workspace. You can also search the library to open, modify, and learn from thousands of user-submitted circuits. Keyboard Shortcuts: If you are using the desktop web version, use R to rotate, F to flip, and Delete to quickly clear components. To tailor this manual further, tell me how you primarily use EveryCircuit . Are you building analog circuits , digital logic gates , or educational demonstrations ? Share public link This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
The Ultimate EveryCircuit Manual: Build, Simulate, and Master Electronics EveryCircuit is a powerful, interactive circuit simulator used by students, hobbyists, and professional engineers worldwide. Unlike traditional SPICE-based tools that output complex graphs and raw data tables, EveryCircuit uses real-time visual animations to show how current flows and voltages fluctuate. This comprehensive manual covers everything from the basic user interface to advanced simulation techniques and troubleshooting methods. 1. Getting Started with the Interface The EveryCircuit interface is designed to be minimalistic and touch-friendly, operating identically across web browsers, Android, and iOS devices. The Workspace The center of your screen is the infinite grid workspace. You can pan around by dragging the background and zoom in or out using your mouse wheel or pinch-to-zoom gestures. The Top Toolbar Components Bin (Plus Icon): Opens the library of electrical components. Wrench Tool: Accesses parameters for the selected component. Eye Icon: Toggles the visualization of voltage colors and current animations. Play/Pause Button: Starts and stops the real-time simulation. Speed Slider: Adjusts the simulation time step, allowing you to speed up slow circuits or slow down high-frequency waveforms. 2. Placing and Connecting Components Building a circuit requires three basic actions: placing, configuring, and wiring. Adding Components Click the Plus (+) icon to open the library. Select a category (Sources, Passives, Semiconductors, Logic Gates). Click or drag the desired component onto the workspace. Tap the Rotate icon (circular arrow) to change its orientation. Wiring Components EveryCircuit features an intelligent, automatic wiring engine. Click or tap an open terminal (the highlighted node or dot) on a component. Click or tap the destination terminal on another component. The software automatically routes the wire around existing objects. To delete a wire, click it once to highlight it and tap the Trash Can icon. Crucial Rule: Every circuit must contain at least one Ground (GND) component. Without a ground reference point, the simulation engine cannot calculate absolute node voltages and will display an error. 3. Adjusting Component Parameters Every component can be customized to match real-world specifications. Click on the component you want to modify. Click the Wrench icon to open the parameter adjustment wheel. Turn the virtual knob to increase or decrease the value. For precise control, use the multiplier buttons (p, n, µ, m, k, M, G) to instantly scale units from pico to giga. Parameter Examples: DC Voltage Source: Adjust the constant voltage output ( AC Source: Configure the frequency ( ), amplitude ( ), and phase offset. Resistor: Change resistance values ( Ωcap omega Capacitor / Inductor: Change capacitance ( ) or inductance ( 4. Understanding Visual Animations The core strength of EveryCircuit is its real-time visual feedback system. Learning to read these animations helps you debug hardware designs instantly. Current Animation (Moving Dots) Direction: The small yellow dots represent conventional current flowing from positive to negative potentials. Speed: The speed of the moving dots is directly proportional to the amount of current ( ) passing through the wire. Fast dots indicate high current; stationary dots indicate zero current. Voltage Visualization (Color Coding) Green Wires: Represent positive voltage. The brighter or more saturated the green, the higher the voltage. Gray Wires: Represent neutral or ground potential (0V). Orange/Red Wires: Represent negative voltage relative to the ground reference. 5. Using the Virtual Oscilloscope To analyze your circuit quantitatively, EveryCircuit includes a built-in multi-channel virtual oscilloscope. Monitoring Waveforms Click on any component, wire, or node. Look at the bottom bar and click the Eye (Show) icon next to the value you want to track (Voltage or Current). An oscilloscope window will slide up from the bottom of the screen. Adjusting the Scope Scaling: Drag your finger or mouse vertically over the scope window to change the volts/division scale. Timebase: Drag horizontally to change the time/division scale. Multi-waveform Comparison: Tap multiple nodes or components simultaneously and click the eye icon for each. The oscilloscope will display them in different colors on the same timeline, allowing you to analyze phase shifts, propagation delays, and input-vs-output relationships. 6. Advanced Simulation Capabilities EveryCircuit handles complex analog and digital designs seamlessly. Operational Amplifiers (Op-Amps) When using the Op-Amp component, you must supply power rails if you want to simulate clipping and saturation. By default, EveryCircuit provides an ideal Op-Amp model, but you can adjust the maximum output swing in the parameter menu to match real-world chips like the LM741 or TL081. Digital Logic Gates The library includes standard logic gates (AND, OR, XOR, NOT, NAND, NOR) along with flip-flops and counters. Digital high ( ) is represented by the system's logic voltage (usually 5V). Digital low ( ) is represented by 0V (Ground). You can use the Digital Signal Generator to input custom binary sequences or clock pulses into your logic arrays. 7. Troubleshooting Simulation Errors If your circuit behaves unexpectedly or displays an error message, use this checklist to diagnose the issue: "Singular Matrix" or "No Ground" Error: Look closely at your workspace. Ensure a ground symbol is connected to the negative side of your power supply or common rail. "Simulation Diverged" Error: This happens when voltages or currents approach infinity, usually caused by short-circuiting an ideal voltage source directly into a wire or a 0- Ωcap omega resistor. Add a small resistor to limit the current. Frozen Animation: If the yellow dots stop moving but no error appears, check if your capacitors are fully charged or your inductors are fully saturated. Alternatively, increase the simulation speed slider on the top toolbar. To help me tailor this guide to your needs, please share what type of circuit you are trying to build. I can also provide specific component settings or explain how to analyze your exact project. Share public link This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
The Ultimate EveryCircuit Manual: Mastering the Art of Interactive Circuit Simulation Introduction: Why EveryCircuit is Different In the crowded world of Electronic Design Automation (EDA) tools, most software falls into two categories: expensive, complex professional suites (like SPICE or Altium) or static, textbook-style simulators. EveryCircuit breaks this mold. It is an interactive, real-time, gamified simulation engine designed for mobile devices and web browsers. However, because of its visual and multi-touch interface, many users open the app, place a resistor and a battery, watch the electrons flow, and never explore its deeper capabilities. This EveryCircuit Manual will serve as your complete reference guide—from the absolute basics of dragging components to advanced bi-stable multivibrators and MOSFET logic.
Part 1: Getting Started – The Interface Before you build a circuit, you must understand the cockpit. EveryCircuit is designed to feel tactile, but the icons are dense with information. 1.1 The Toolbar (Desktop vs. Mobile) everycircuit manual
The Hand (Pan/Drag): Moves the canvas and grabs components. The Component Library (Plus Sign): The heart of the system. Here you find Passive (R, L, C), Active (Diodes, BJTs, MOSFETs), Sources (Voltage, Current, AC), and Meters. The Play Button (Run/Stop): Starts the live simulation. The Scope (Oscilloscope Icon): Opens the voltage vs. time graph for any two nodes. The Tune Slider: Allows you to change resistance, capacitance, or voltage values while the circuit is running.
1.2 The Unique "Live" Mode Unlike traditional manuals that require you to run an "Analysis," EveryCircuit runs instantly. You will see:
Dynamic Voltages: Wires change color (Green=0V, Red=VCC) to show potential. Moving Dots (Current Flow): Conventional current flow (+) to (-) is animated. Live Plots: You can drag a probe and watch the sine wave change in real-time. The Schematic Editor This canvas is your primary workspace
1.3 The Sandbox vs. Public Library EveryCircuit operates on two modes:
Private Sandbox: Your scratchpad. Nothing is saved automatically. Public Community: Millions of shared circuits. This is the best way to learn. Before building an op-amp from scratch, download one to see how it works.
Part 2: Component Deep Dive (The "No Math" Section) This manual treats EveryCircuit as a learning tool first. Here is how to use the core components practically. 2.1 Resistors (R) you are burning it out (theoretically).
How to use: Tap to select. Use the Tune slider (or pinch on mobile) to change Ohms. Pro Tip: Hold down the resistor while running to see the live power dissipation (Watts) calculation. If the resistor turns red, you are burning it out (theoretically). Manual Override: You can set exact values (e.g., 4.7k) by tapping the numeric value on the side panel.
2.2 Capacitors (C)