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 ...

Arduino Uno Board; 100K Resistor; 10K Resistor; 100R Resistor; ... the Arduino analog pin will be at its maximum voltage of 5V. So, in practice, it is better to label this voltmeter as “0-30V DVM” to ...