Circuit library
Circuits you can build and run
Every example from the online workspace, from a single LED to a transistor amplifier. Each page shows the block layout, what the circuit does when it runs and which blocks you need. Open any of them in the 3D builder and change it.
First build
First build- Light it upBattery, switch and an LED in one loop.
- What happens in reverse?The LED is turned round, so it stays dark.
- Press to lightA push button lights the LED only while you hold it.
- One source, two pathsTwo LEDs in parallel, both with the same brightness.
- When components line upTwo LEDs in series. Together they need more than 3 V, so neither lights.
- AND gate: two buttons in seriesBoth buttons must be pressed at the same time.
- OR gate: two buttons in parallelEither button lights the LED.
Next step
Next step- Switching with a transistorA tiny current through the base turns on the LED.
- A circuit that craves lightThe LED lights in daylight and turns off when you cover the light sensor.
- Turn the brightness up or downA potentiometer sets the transistor's base voltage, so it dims the LED.
- Touch to activateYour finger on the X Junction pads passes a tiny current into the transistor base.
- Charge it, release itThe left button charges the capacitor (the buzzer blips). The right button lets it discharge through the LED.
- Capacitor delay-off timerPress the button and the LED stays on for a while after you let go.
- Spin a motorThe same loop with a DC motor. Rotate the motor to reverse its direction.
- Magnet-activated switchThe Hall effect switch lights the LED when a magnet comes close.
Classic
Classic75circuits in the printed manual that comes with the kit.
See every block