Which Arduino board is best for beginners?

Getting started with Arduino can feel quite overwhelming at first because you're faced with the decision of what board to buy.
GitHub

An easy to use L298N library to control DC Motors with Arduino.

As you know, any L298N module has the ability to drive two motors at once, but you may not know that one instance of the library is intended to pilot only one motor. So if you need to drive two motors ...
IEEE

A 4.5V-Input 0.3-to-1.7V-Output Step-Down Always-Dual-Path DC-DC Converter Achieving 91.5%-Efficiency with 250mΩ-DCR Inductor for Low-Voltage SoCs

Abstract: This paper presents an always-dual-path (ADP) DC-DC converter that achieves 4.5V-input 0.3-to-1.7V-output buck conversion for battery-powered low-voltage SoCs. Regardless of voltage ...