Terminology » Microcontrollers » Arduino Uno vs. Leonardo: Key Differences and Comparison

Arduino Uno vs. Leonardo: Key Differences and Comparison

arduino microcontroller uno leonardo comparison

This article explores the key differences between the Arduino Uno and the Arduino Leonardo, providing a table comparing their features.

Arduino Uno vs. Leonardo: A Head-to-Head Comparison

The following table highlights the differences between the Arduino Uno and the Arduino Leonardo:

FeaturesArduino UnoArduino Leonardo
Microcontroller UsedAtmega328Atmega32U4
Detachment of MicrocontrollerNot detachable (mounted on the board)Easily detachable
Number of PWM Pins67
Number of I/O Pins1420 (including analog I/O pins)

Key Takeaways

The main differences lie in the microcontroller used and its detachability. The Leonardo uses the Atmega32U4, which allows it to act as a USB device directly, simplifying tasks like keyboard and mouse emulation. The Uno, with its Atmega328, relies on a separate USB-to-serial converter. Also, the Leonardo’s microcontroller can be detached more easily.