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
Your first Arduino project: Design and Build a Colorful Musical Toy. | Bill Jamshedji | Skillshare
Design projects using arduino, raspi, esp32 or 8266, stm32 by Varungonzy | Fiverr