The app is used to draw circuits as well as simulate the Arduino Code right in the browser. Wokwi Arduino simulator creates diagrams as well as actually runs tie application code on the AVR8js platform.
Free • Open Source
What is Wokwi Arduino Simulator?
An easy and helpful way to learn good Arduino programming as well as tinker with many famous open-source Arduino libraries.
The best option to work with Arduino code, especially at times when the hardware is not available. This is also great way to tinker with the Arduino libraries and demonstrates the work output to others, to showcase new projects to prospective clients to to teach or learn by doing. Overrall, WOkwi Simulator is a good and useful resource with all the examples being open source and present in GitHub.