Pastille
Summary
Pastille is an educational electronics simulator for people who are new to
building circuits. Add a battery, resistor and LED, connect them, and watch the
current move through the wires. When something is wrong, Pastille explains what
would happen on a real bench and how to fix it.
The simulator runs locally in the browser, works offline, and is also available
as a desktop app for macOS, Windows and Linux.
Features
• See current flow through animated dots, voltage through wire colours, and
heat build up in components.
• Catch common mistakes as you wire, including reversed LEDs, short circuits
and overloaded resistors.
• Explore 56 modeled parts and 111 working example circuits.
• Run real Arduino Uno sketches on an emulated ATmega328P, with a serial
monitor.
• Move from a working schematic to a step-by-step breadboard layout and parts
list.
• Export schematics and netlists to KiCad.
• Simulate privately and offline in the browser, with circuits saved locally.
Pastille is designed to teach how circuits behave, rather than to provide
engineering-grade simulation accuracy.