101 Circuits

Electronics practice

Build a circuit.
Understand the signal.

Connect components and see what happens on the oscilloscope. Work through guided circuit puzzles, then put your ideas to work in Sandbox.

Wishlist on Steam Explore the workbench

Desktop electronics. No programming required.

A low-pass filter on the blue schematic workbench, with its measured waveform matching the target in the oscilloscope.
Low-pass filterA pulse becomes a smooth charging and discharging curve.

The workbench

Make a connection.
See the result.

Each puzzle gives you the components and a target waveform. You decide how to connect them. Any circuit that produces the required signals is accepted.

  1. Connect the parts

    Draw wires between terminals. Try a different connection with Undo and Redo, and return to your saved circuit later.

  2. Read the oscilloscope

    Compare your output with the target. Inspect the waveform to understand how each connection changes the circuit.

  3. Match the signals

    A puzzle is complete when every output matches. Start with a simple return path and work toward filters, logic, and oscillators.

Learn

The explanation
is close at hand.

Open the Learn library for component symbols, connections, and behavior. Illustrated articles bring diagrams, formulas, and practical examples together.

Puzzle guides explain the circuit you are working on. Follow a lesson at your own pace, then try the next idea on the workbench.

View the Learn library
The Learn library displays a grid of electronic component symbols with the analog switch selected.
Component reference, built into the application.

Sandbox

Keep experimenting.

Use the components you discover to make your own circuits. Change a value, watch the trace respond, and save the diagram for another day.

A Sandbox circuit with a pulse source, resistor, capacitor, live oscilloscope, and four pinned value controls.
Pin useful controls. Adjust voltage, frequency, resistance, and capacitance with a knob or an exact value.

Your own diagrams

Place components, draw connections, and save your work.

A closer look

Zoom into the circuit and inspect its signals as you experiment.

A choice of themes

Work in Blueprints or Dark, with keyboard and mouse controls.

Chip design

Circuits: VLSI

Design circuits in silicon. Draw metal, polysilicon, and silicon, then inspect how the layers connect and how the signals change.

Work through 100 guided puzzles, from a simple metal path to gates, memory, and clocked circuits. Build your own designs in an open Sandbox.

Explore Circuits: VLSI
A clocked silicon circuit in Circuits: VLSI, viewed in perspective with metal paths raised above its transistor layers.Chip layout, simulation, and an open Sandbox

101 Circuits on Steam

Start with a connection.

Find release information and add 101 Circuits to your wishlist.

Wishlist on Steam