After you’ve taken the plunge and decided to learn how to etch your own circuit boards ... and turn making a homemade Arduino board an exercise in frustration and improving your vocabulary ...

[Allan Schwartz] decided to document his experience using Fritzing to design, fabricate, and test a custom Arduino shield PCB, and his step-by-step documentation makes the workflow very clear.

Aside from building circuits, Tinkercad also lets you paste the code for the Arduino and simulate the sketch to see whether ...

Raspberry Pi HATs offer small, stackable data acquisition with features like analog and digital I/O.