Arduino Leonardo without Headers

The classic Arduino board that can act as a mouse or keyboard.

Manufacturer	Arduino
Description	Arduino Leonardo without Headers
Part Number	A000052
Operating Voltage	5V
Input Voltage (recommended)	7-12V
Digital I/O Pins	20
DC Current for 3.3V Pin	50 mA
Flash Memory	32 KB (ATmega32u4) of which 4 KB used by bootloader

SRAM	2.5 KB (ATmega32u4)
Clock Speed	16 MHz
Width	53.3 mm
Weight	20 g
Microcontroller	ATmega32u4
DC Current per I/O Pin	40 mA
EEPROM	1 KB (ATmega32u4)

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Izbirnik izdelkov

	Part Number	Description	Operating Voltage	Input Voltage (recommended)	Input Voltage (limits)	Digital I/O Pins	DC Current for 3.3V Pin	Flash Memory	SRAM	Clock Speed	Width	Weight	Microcontroller	DC Current per I/O Pin	EEPROM	PWM Channels	Analog Input Channels	Lengh
	A000052	Arduino Leonardo without Headers	5V	7-12V	6-20V	20	50 mA	32 KB (ATmega32u4) of which 4 KB used by bootloader	2.5 KB (ATmega32u4)	16 MHz	53.3 mm	20 g	ATmega32u4	40 mA	1 KB (ATmega32u4)	7	12	68.6 mm

Opis izdelka

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. It also has other implications for the behavior of the board; these are detailed on the Getting started with the Arduino Leonardo.

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