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 ...

The datasheet of the ADG732 says that the address pins are level sensitive. So you don’t need 8 digital IOs of an Arduino to control one of these chips, you can connect EN, WR and CS to GND, and ...

The circuit in this Design Idea provides a way to convey mixed analog and digital inputs into a microcontroller using one input pin. The output of the circuit connects to a micro-controller's ...