YouTube channel How To Mechatronics has created a great tutorial with full instructions on how to create your very own Arduino powered 3D wire bending machine.

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino Board, one 1K and one 10K resistors, 1 BC547 transistor, one 6V or 12V relay, one 1N4007 diode and a 12V fan ...

However, the Arduino compiler tends to convert smaller switch/case structures into if/then assembler. With Arduino C, small if/then state-machines generally come out smaller a switch/case version.

This hands-on tutorial shows how to choose and run machine learning models for solar power prediction using Google Colaboratory.