List of MicroSims for Beginning Electronics
Interactive Micro Simulations to help students learn beginning electronics fundamentals.
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555 Pin Numbering and IC Notch Orientation

Interactive p5.js MicroSim for 555 pin numbering and ic notch orientation.
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555 Timer Astable and Monostable Simulator

555 Timer Astable and Monostable Simulator
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74HC595 Datasheet Pinout Diagram Reader

Interactive p5.js MicroSim for 74hc595 datasheet pinout diagram reader.
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74HC595 Shift Register LED Bar Graph and Daisy-Chain Explorer

Interactive p5.js MicroSim for 74hc595 shift register led bar graph and daisy-chain explorer.
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7805 Voltage Regulator Breadboard Circuit

Interactive p5.js MicroSim for 7805 voltage regulator breadboard circuit.
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Active vs. Passive Buzzer Tone Comparison

Interactive p5.js MicroSim for active vs. passive buzzer tone comparison.
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Compare six common battery types by physical form, chemistry, nominal voltage, capacity, and typical use.
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Click any region of a half-size solderless breadboard to see which tie points are secretly wired together underneath the plastic.
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Breadboard Troubleshooting Detective

Interactive p5.js MicroSim for breadboard troubleshooting detective.
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Buck Converter Trimmer Explorer

Interactive p5.js MicroSim for buck converter trimmer explorer.
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Interactive p5.js MicroSim for capacitor value code decoder.
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Compare three visually engaging capstones by purpose, parts, constraints, and challenge level.
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Capstone Project Planning Workflow

Interactive p5.js MicroSim for capstone project planning workflow.
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Circuit Assembly Order Sequencer

Interactive p5.js MicroSim for circuit assembly order sequencer.
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Circuit Continuity and Fault Tester

Interactive p5.js MicroSim for circuit continuity and fault tester.
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Circuit Diagram and Schematic Symbol Explorer

Interactive p5.js MicroSim for circuit diagram and schematic symbol explorer.
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Circuit Safety Hazard Explorer

Interactive p5.js MicroSim for circuit safety hazard explorer.
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Interactive p5.js MicroSim for circuit topology explorer.
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Interactive p5.js MicroSim for combination lock circuit.
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Component Markings: What You Can Read

Compare visible markings and datasheet-only facts for five common component families.
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DC Motor Control and Stall Current Explorer

Interactive p5.js MicroSim for dc motor control and stall current explorer.
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Interactive p5.js MicroSim for diode test mode explorer.
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Top view of 5mm LEDs drawn in p5.js, using the flat cathode edge to show polarity and comparing on and off states across seven LED colors.
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Drawing Resistor Symbols in a MicroSim

How the drawResistor() function draws the international zig-zag schematic symbol in p5.js, in horizontal and vertical orientations with labels placed on any of the four sides.
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Drawing Resistors in a MicroSim

How physical resistors are drawn in p5.js with correct color-code bands and K/M value labels, in both horizontal and vertical orientations.
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Electron Flow vs. Conventional Current

Interactive p5.js MicroSim for electron flow vs. conventional current.
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Compare the 2N2222, 2N3904, BC547, 2N3906, and 2N3055 by polarity, package, ratings, and use.
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Interactive flip-flop circuit simulation showing how a bistable latch stores a single bit and toggles state in response to input pulses.
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Forward vs. Reverse Bias Breadboard Demo

Interactive p5.js MicroSim for forward vs. reverse bias breadboard demo.
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Full Resistor Color Code Decoder

Interactive p5.js MicroSim for full resistor color code decoder.
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Interactive p5.js MicroSim for half-split fault finder.
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Interactive p5.js MicroSim for jumper wire routing practice.
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Kirchhoff's Laws Circuit Explorer

Interactive p5.js MicroSim for kirchhoff's laws circuit explorer.
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Interactive p5.js MicroSim for kit resistor band matcher.
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Interactive viewer for the course learning graph with concept search, category filters, and click-to-explore navigation of prerequisite relationships.
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LED Chaser and Matrix Wiring Explorer

Interactive p5.js MicroSim for led chaser and matrix wiring explorer.
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LED Color, Viewing Angle, and Lens Shape Explorer

Interactive p5.js MicroSim for led color, viewing angle, and lens shape explorer.
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Calculates the current-limiting resistor an LED needs from supply voltage, LED forward voltage, and target current, then finds the nearest standard resistor value.
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LED with Current-Limiting Resistor Breadboard Circuit

Interactive p5.js MicroSim for led with current-limiting resistor breadboard circuit.
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A light-dependent resistor drives a transistor through a voltage divider, switching an LED and buzzer as the light level crosses the 0.7 volt base threshold.
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Interactive p5.js MicroSim for material conductivity sorter.
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Compare DC motors, relays, solenoids, and hobby servos by motion, control, and use.
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Compare ceramic, electrolytic, and tantalum capacitors by polarity, behavior, and best use.
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Compare five fixed, adjustable, light-sensitive, and temperature-sensitive resistor types.
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Compare five common switch and button types by physical form, behavior, wiring, and best use.
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Multi-LED Configuration Explorer

Compare parallel LED branches, strips, matrices, and chasers by wiring and control strategy.
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Interactive p5.js MicroSim for multimeter anatomy explorer.
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Node Voltage and Series Resistance Chain Builder

Interactive p5.js MicroSim for node voltage and series resistance chain builder.
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Ohm's Law Circuit Simulator
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Potentiometer Motor Control Breadboard

Adjust base drive, compare motor speed and transistor power, and inspect flyback diode protection.
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Interactive p5.js MicroSim for potentiometer taper explorer.
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Compare USB, 9 V, AA-pack, and LiPo power sources for beginner electronics projects.
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Pull-Up and Pull-Down Resistor Explorer

Interactive p5.js MicroSim for pull-up and pull-down resistor explorer.
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A breadboard MicroSim where three push buttons each light an LED through a 220 ohm resistor, with animated current flow and a live current and voltage plot.
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PWM Motor Speed Control Breadboard

Interactive p5.js MicroSim for pwm motor speed control breadboard.
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RC Charge and Discharge Curve Explorer

Interactive p5.js MicroSim for rc charge and discharge curve explorer.
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An interactive MicroSim for testing the uniformity of drawResistor, drawInductor, and drawCapacitor functions from the p5-circuit-lib.js library.
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Interactive p5.js MicroSim for relay basics explorer.
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Resistivity and Conductance Calculator

Interactive p5.js MicroSim for resistivity and conductance calculator.
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Resistor Family Matching Sorter

Interactive p5.js MicroSim for resistor family matching sorter.
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RGB LED Color Mixing Breadboard

Interactive p5.js MicroSim for rgb led color mixing breadboard.
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Schematic-to-Breadboard Mapper

Interactive p5.js MicroSim for schematic-to-breadboard mapper.
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Sensor-Logic-Output Block Diagram Builder

Interactive p5.js MicroSim for sensor-logic-output block diagram builder.
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Series and Parallel Circuits Comparison

Series and Parallel Circuits Comparison
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Rewire two identical LEDs between a series chain and two parallel branches on a breadboard, and watch branch current and total supply current change.
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Solar Panel Charging Circuit Explorer

Interactive p5.js MicroSim for solar panel charging circuit explorer.
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Solder Joint Quality Classifier

Interactive p5.js MicroSim for solder joint quality classifier.
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How a 400-tie solderless breadboard is laid out - power rails, terminal strips, the center divider, and row/column labels - and how it is drawn in p5.js as a background for other MicroSims.
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TP4056 Charging Circuit Wiring

Interactive p5.js wiring diagram of a TP4056 charger module connected to a single-cell LiPo battery and a project board.
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Transistor AND and OR Logic Gates with Live Truth Table

Interactive p5.js MicroSim for transistor and and or logic gates with live truth table.
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Transistor as a Switch — Breadboard Demo

Interactive p5.js MicroSim for transistor as a switch — breadboard demo.
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Transistor Current Gain Explorer

Interactive p5.js MicroSim for transistor current gain explorer.
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Transistor Gate Explorer with LED Output

Interactive p5.js MicroSim for transistor gate explorer with led output.
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Transistor Motor Driver — Base Resistor and Darlington Pair Explorer

Interactive p5.js MicroSim for transistor motor driver — base resistor and darlington pair explorer.
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Two ICs Coming Soon — 555 Timer and 74HC595 Preview

Interactive p5.js MicroSim for two ics coming soon — 555 timer and 74hc595 preview.
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Interactive p5.js MicroSim for unit prefix value converter.
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Interactive p5.js MicroSim for virtual multimeter breadboard.
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Voltage Divider Circuit Explorer

Interactive p5.js MicroSim for voltage divider circuit explorer.
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Water Flow Analogy MicroSim
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Two switches in series make an AND gate and two in parallel make an OR gate, with live truth tables that fill in as the student flips the switches.
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XR2206 Waveform Generator Explorer

Interactive p5.js MicroSim for xr2206 waveform generator explorer.