If you would like to join the Arduino UNO R4 early access program the team is now looking for authors and those that maintain a library or a popular open source project for Arduino, apply to join ...

Driving stepper motors is a perfect example: you can grab a cheap controller board, hook it up to a microcontroller, and the rest is essentially just software.

Arduino has announced the new UNO R4 board family for prototyping and learning. The new models feature a faster microcontroller, a USB-C connector, improved power, Wi-Fi and Bluetooth LE, and more.