Among all the Arduino boards, the Uno ... the pin numbers. PWM pins are generally used in controlling output devices in Arduino projects. To send a PWM value to a PWM-capable pin like the Mega's ...

It’s a significant update. The Arduino UNO and Arduino Mega 2560 update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip.

A typical Arduino microcontroller board is pretty small, about the size of a credit card. This makes it suitable for embedding into all ... power and pin count of an Arduino Uno," measures just ...

"If you wanted to do that with a Raspberry Pi, you'd essentially have to add an Arduino," he said. (The Raspberry Pi does have one pin ... into electrical impulses by an Arduino Uno unit.