Circuit design software that makes it easy to design, document, and debug electronics projects for the breadboard (more info in the comments). Would you find this useful? (x-post with r/ArduinoProjects) : r/arduino
online circuit designing & simulation - YouTube
Fritzing Tutorial - A Beginners Guide to Making Circuit & Wiring Diagrams - YouTube
How to draw a arduino project circuit using fritzing - YouTube
Revisiting the first circuit with Arduino: Arduino schematics
Arduino simulator AND | Tinkercad
Useful Tools for Drawing Electrical Circuits • Smashing Robotics
The Best Arduino Simulators of 2022 (Online & Offline) | All3DP
Need help with checking code and circuit diagram! - Programming Questions - Arduino Forum