Arduino leonardo R3 ATMEGA32U4 Board

The Arduino Leonardo is a microcontroller board based on the exciting USB-enabled ATmega32u4. This chip has about the same amount of flash, RAM, and capability as the ATmega328 found in the UNO. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro-USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.

Technical Specification

Microcontroller: ATmega32u4

Operating Voltage: 5V

Recommended Input Voltage: 7 – 12V

Input Voltage Range: 6 – 20V

Digital I/O pins: 20

PWM pins: 7

Analog Input pins: 12

DC current per I/O pin: 40mA

DC current for 3.3V: 50mA

Flash memory: 32KB

SRAM: 2.5KB

EEPROM: 1KB

Clock Speed: 16MHz

Applications

Embedded Systems

Robotics

Home Automation

Additional Information

Length: 68.6mm

Width: 53.3mm

Weight: 20g