Explore
Find the right bench tool fast.
Search across calculators, lessons, project builds, simulator tools, repair guidance, PCB planning, and mentor prompts.
Safety first, always.
ElectroLab AI teaches theory, low-voltage electronics, and planning concepts. Mains voltage, switchboards, fixed wiring, high-current systems, and legal electrical work must only be performed by licensed electricians where required.
Open Safety CenterShowing 77 of 77
Low-voltage learning, theory, projects, and tools
Trade Calculators
Core trade maths for voltage, current, power, ratios, and field checks.
Circuit Simulator
Sketch low-voltage circuits today, with a simulation engine planned next.
Interactive Labs
Slider-driven diagrams for current, timing, coils, audio, solar, and radio intuition.
Electronics Academy
Short lessons for parts, AC/DC theory, waves, and practical electronics.
Magnet & Coil Lab
Explore inductors, electromagnets, motors, generators, and induction.
Audio / Amplifier Lab
Audio paths, gain, filters, amplifier basics, and repair thinking.
Speaker & Crossover Lab
Speaker repairs, impedance, crossover frequency, and enclosure ideas.
RF / Radio Lab
Radio waves, frequencies, antennas, crystal radios, and tuning basics.
PCB Design Studio
Beginner PCB flow: schematic, footprints, layout, checks, and export.
DIY Build Projects
Hands-on, low-voltage builds with parts lists and learning goals.
Solar & Battery Projects
Battery runtime, solar charging, protection, and portable power ideas.
Repair Assistant
Fault-finding prompts for power, audio, connectors, switches, and boards.
AI Electrical Mentor
Apprentice-friendly explanations, checks, and safe next-step guidance.
Ohm's Law
Find current from voltage and resistance. Formula: I = V / R
Power
Calculate electrical power from voltage and current. Formula: P = V x I
Transformer Turns Ratio
Estimate secondary voltage from primary voltage and turns. Formula: Vs = Vp x Ns / Np
RC Time Constant
Find the charging time constant for a resistor-capacitor circuit. Formula: tau = R x C
RL Time Constant
Find the current-rise time constant for a resistor-inductor circuit. Formula: tau = L / R
RLC Resonance
Estimate the resonant frequency of an LC tank. Formula: f = 1 / (2pi sqrt(LC))
Speaker Crossover Frequency
Find first-order crossover frequency from impedance and capacitor. Formula: f = 1 / (2pi R C)
Solar Battery Runtime
Estimate battery runtime from capacity, voltage, load, and efficiency. Formula: hours = Ah x V x efficiency / load W
AC vs DC
DC flows one way. AC changes direction repeatedly and is used for power distribution.
Resistors
Resistors limit current, divide voltage, set bias points, and turn electrical energy into heat.
Capacitors
Capacitors store charge, smooth supplies, pass changing signals, and block steady DC.
Inductors
Inductors store energy in magnetic fields and resist changes in current.
Transformers
Transformers transfer AC energy through magnetic coupling and change voltage by turns ratio.
Amplifiers
Amplifiers use a small signal to control a larger signal for audio, sensors, and communication.
Speakers
Speakers use a voice coil in a magnetic field to move air and create sound.
Radio Waves
Radio uses electromagnetic waves to carry information through space.
Solar Basics
Solar panels provide variable DC power that needs regulation before charging batteries.
LED Flasher
Learn timing, polarity, current limiting, and breadboard layout. Parts: 555 timer, LEDs, resistors, capacitor, breadboard
Mini Amplifier
Build a small audio amp and understand gain, coupling, and noise. Parts: LM386 module or IC, speaker, potentiometer, capacitors
Solar Phone Charger
Learn solar input, battery protection, boost conversion, and load limits. Parts: Solar panel, charge controller module, battery pack, USB boost module
Electromagnet
See magnetic fields from current and learn why coils need current limits. Parts: Enamelled wire, iron bolt, low-voltage battery, switch
Crystal Radio
Explore resonance, detection, antennas, and radio waves without a battery. Parts: Coil, variable capacitor, diode, high-impedance earphone, antenna
Speaker Crossover
Split audio bands and learn how filters protect and shape speakers. Parts: Capacitors, inductors, resistors, speaker drivers
Bench Power Supply
Create an adjustable low-voltage supply for electronics testing. Parts: DC supply module, enclosure, terminals, fuse, display
Simple Alarm Circuit
Use a transistor as a switch and build a practical sensor circuit. Parts: Buzzer, transistor, reed switch, resistor, battery
Calculator Chooser
Guided calculator index that helps choose the right formula by task, part, unit, safety lens, and related learning bench.
Pinout Lab
Interactive package pinout diagrams for 555 timers, transistors, MOSFETs, LM386 amps, I2C modules, and relay terminals.
Lesson Workbenches
Interactive lesson pages with sliders, visual wave/current/field diagrams, safe bench checks, and common mistake reveals.
Project Explorer
Interactive DIY build library with search, skill filters, readiness cues, parts, first tests, risks, and handoffs to wiring and planning.
Raspberry Pi Header
Interactive 40-pin GPIO header pinout, safe starter schematics, I2C wiring, LED/button examples, and driver warnings.
Troubleshooting Coach
Guided low-voltage fault-finding coach that turns symptoms and observations into the next safe measurement.
Reference Atlas
Visual field guide for symbols, plain meanings, bench checks, fault clues, and related practice links.
PCB Checker
Interactive board preflight for schematic labels, footprints, polarity, routing, test pads, first power-up, and safety boundaries.
Formula Trainer
Interactive formula practice with sliders, result notes, safety prompts, and calculator handoffs.
Project Picker
Choose the best low-voltage build from skill level, available parts, and learning goal before planning the bench.
Concept Lab
Interactive lesson bench that connects formulas, diagrams, common mistakes, and measurement habits.
Scope Lab
Virtual oscilloscope practice for waveform shape, trigger level, volts/div, time/div, ripple, clipping, duty cycle, and noise.
Wiring Guide
Step-by-step schematic-to-breadboard trainer with wire placement, trace order, parts, and bench checks.
Schematic Reader
Guided symbol and current-path trainer for reading circuit diagrams, test points, and safe bench measurements.
Safety Trainer
Scenario trainer for deciding low-voltage bench work, pause-and-supervise cases, and licensed-only boundaries.
Signal Tracer
Stage-by-stage probe practice for power rails, audio paths, radio tuning, and sensor logic.
Skill Drills
Short scenario practice for meter habits, safety boundaries, formulas, build checks, and fault-finding decisions.
Fault Lab
Interactive troubleshooting practice with simulated meter readings, fault zones, diagnosis checks, and safe next measurements.
Lab Notebook
Local bench log for expected readings, observed measurements, next steps, safety notes, and repair/project evidence.
Circuit Cookbook
Interactive library of reusable circuit blocks with diagrams, test points, common traps, and linked lessons.
Learning Roadmap
Guided stage-by-stage path through lessons, labs, builds, proof checks, and safety gates.
Multimeter Trainer
Interactive meter practice for voltage, continuity, resistance, diode test, probe placement, and safe readings.
Breadboard Wiring Lab
Visual wiring trainer for LED circuits, rails, missing resistors, reversed LEDs, shorts, and open returns.
Motor & Generator Lab
Interactive magnetism lab for coil turns, current, torque, back EMF, generated voltage, speed, and heat.
Audio Signal Lab
Interactive amplifier lab for gain, clipping, speaker impedance, output power, and crossover behaviour.
PCB Trace Lab
Interactive board trace playground for current, copper width, voltage drop, heat, and clearance.
Parts Lab
Visual component guide for symbols, polarity, meter checks, common mistakes, and related builds.
Waves Lab
Scope-style visualizer for DC, AC, audio, radio, amplitude, frequency, wavelength, and offset.
Schematic Gallery
Visual reference wall for circuit diagrams, project schematics, calculator concepts, and test points.
Interactive Labs
Slider-driven visual labs for Ohm's Law, RC timing, coils, crossovers, solar runtime, and radio wavelength.
Repair Assistant
Fault-finding flow for dead, hot, noisy, intermittent, and low-voltage electronics problems.
AI Electrical Mentor
Guided prompt bench for explanations, quizzes, safe questions, and practical next checks.
PCB Design Studio
Beginner workflow for schematics, footprints, board layout, routing, checks, and first power-up.
Circuit Simulator
Low-voltage circuit canvas with components, wiring, example circuits, and circuit checks.
Safety Center
Clear boundaries for mains voltage, fixed wiring, batteries, first power-up, and licensed electrical work.
Build Planner
Project parts checklist, readiness checks, first measurements, and build notes for low-voltage projects.
Formula Sheet
Core electrical, electronics, timing, resonance, audio, transformer, and battery formulas.
Glossary
Plain-language definitions for electrical, electronics, repair, audio, PCB, and safety terms.
Practice Quiz
Multiple-choice checks for formulas, parts, safety, speakers, PCB basics, and batteries.