Breadboard: Circuit Puzzles

Build circuits on a real breadboard and watch them work, or burn. Every LED, resistor and transistor runs on a true DC circuit solver. All 130 electronics levels are included in the price. No ads, no subscription, fully offline. New: the Workshop, a free-build board with every part. Plus optional Chemistry, Physics and Logic Gates benches. IF IT LIGHTS HERE, IT LIGHTS ON YOUR DESK Currents are computed, voltages divide and power heats resistors. Skip the current-limiting resistor and your LED burns out. Short the battery and something cooks. The board has power rails, terminal strips and the center gap, so what you learn carries straight over to a real breadboard. 130 LEVELS, FROM FIRST LIGHT TO MASTER BENCH 13 hand-built chapters follow the path most hobbyists take: • LEDs and current limiting: why that resistor matters • Series and parallel resistors, and power ratings • Switches, motors and buzzers • Voltage dividers and sensor chips • Diodes and zeners • Capacitors: blocking, inrush and hold-up • Relays: circuits that switch circuits • Inductors and the flyback diode lesson • Transistors: a tiny current commanding a big one • MOSFETs and level shifters: 3.3V and 5V side by side • 7-segment displays • Master Bench capstones under a fuse's current budget THE WORKSHOP: BUILD ANYTHING (OPTIONAL) A big breadboard and a bin of every part in the game, with no goal but your own. Every part shows its volts, amps and heat, and a multimeter reads any two holes. • Press Run and watch it live: capacitors charge, relays click and buzz, flashers blink • Knobs, push buttons, light sensors, a 7-segment display and a second power rail • 10 example boards to open and poke at, and 9 challenges from first light to a blinker • Share a build as a code or a link Try it free on a starter board; the full Workshop is a one-time purchase. STUCK? LET THE TUTOR BUILD IT The optional "Solve it for me" tutor places the answer one part at a time and explains each step with real numbers. It stays out of the way until you ask. MORE BENCHES (OPTIONAL) Switch benches on the home screen. Each one has a free first chapter; the rest unlocks with a one-time purchase. • Chemistry: neutralise acids, weigh precipitates and control hot reactions, with real pH, moles and heat • Physics: launch carts and land them on target with springs, friction, ramps and momentum • Logic Gates: build from single gates up to adders, latches and a counter CALM AND YOURS • No accounts, no timers, no energy bars • No ads and no third-party trackers. Anonymous usage stats stay off unless you turn them on. • Works fully offline • Buy once. No subscription. • A warm workshop look: parchment, brass and glowing filaments For tinkerers, makers, students, and anyone who has wondered why the LED needs that resistor. Come find out, and burn a few on the way.