Arduino Leonardo ATmega32u4 with Cable

Description

The Arduino Leonardo is a microcontroller board based on the ATmega32u4 (datasheet). 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 a AC-to-DC adapter or battery to get started.

The Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

Specifications

Chip: ATmega32u4
Board Mode: LEDNARDO R3
Operating frequency: 16MHz
Working voltage: 5V
Color: Blue
Digital IO port: 20
PWM channel: 7
Analog input: 12
Material: CCL
Input voltage: 7-12V
Maximum current of 5V digital/analog port: 40mA
Maximum current of 3.3 V digital/analog port: 50 mA
Flash Memory:32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM: 2.5 KB (ATmega32u4)
EEPROM: 1 KB (ATmega32u4)