As if that’s not enough, the Arduino family is compatible with numerous sensors, motors, breakout boards, and other accessories, making them pretty versatile in their use cases.

Some Arduino boards feature the I2C pins in different places, and you can check out the full hardware requirements for all Arduino boards on the Wire Library Reference page.

PWM pins work the same way across all Arduino boards, so you don't need to go out of your way to buy a Mega if you already have a board supporting PWM. On the Uno, Nano, and Mini, the PWM pins are ...