The Uno also has a limited number of pins, making it difficult to work with when the project requires plenty of input and output components. However, these two areas are where the Arduino Mega shines.

The analog input pins on the two microcontroller boards ... Conversely, the Uno's pins are female. Both the Arduino Nano and Uno can be powered via their integrated USB connectors.

Each of the 14 digital pins on the Arduino Uno can be used as an input or output ... When the pin is HIGH value, the LED is on, when the pin is LOW, it’s off. The Uno has 6 analog inputs, labeled A0 ...

There are five input pins to the chip which lets you connect one analog pin to any one of 32 analog pins. Of course, in addition to the five control lines, you need some handshaking lines ...

I have started this joystick controller experiment inspired by the need of a simple DIY joystick which could deliver greater flexibility in the possible designs. Hardware component basis is very ...

[Damian Peckett] has implemented an Apple ][, its 6502 processor, and a cassette port, all on an Arduino Uno. If that wasn’t enough, he also uses a PS/2 keyboard for input and outputs analog VGA.

The Arduino Mega's PWM pins are digital output pins located ... Instead, it's periodically changed using two ways. One is using an analog input like a potentiometer. In this case, the analogWrite ...

Apart from understanding the Arduino's code ... feature 20 digital pins, labeled as RX, TX, D2 to D13, and A0 to A5. Among these, six (A0 to A5) double as analog input pins on both boards.