PWM pins work the same way across all Arduino boards, so you don't need to ... four as seen in this basic example code or by using the map() function, as you can see in this Analog In, Out Serial ...

Enter the ExtraCore library for Arduino, a software library that turns two or more Arduinos into a multi-core microcontroller with more pins than you’ll ever need. The ExtraCore library comes ...

Secondly, it’s simpler: No USB-UART (which also means no USB programming), a different pin layout (Arduino shields likely won’t fit) and more I/Os than the ATmegas have. Sure, it’s not as ...