Presentation

The Arduino Leonardo is based on the microcontroller ATMEGA32U4, it is an evolution of the Arduino UNO.

It has 14 digital input/kinds (of which 6 can be used as PWM outputs), 12 analog inputs (with 6 shared on the digital inputs), a 16 MHz quartz oscillator, a USB (micro USB) connection, a power jack, an ICSP connector, and a reset button.

It contains everything needed to fly the microcontroller, simply connect it to a computer with a USB cable to use it simply.

USB management is realized with the ATMEGA32U4 to emulate easily a keyboard or a mouse and other USB as a MIDI link and other devices...

Version Rev3 (R3):

1.0 Pinout: 2 pine (SDA and SSL) are added next to the AREF pin and 2 pine (IOREF and a reserve) are added next to the RESET. These pins will be added on the next shields

Package

The Arduino Leonardo is available in two versions: with or without connectors, it has connectors Headers.

Features

• Micro-controller: ATMEL ATMEGA32U4
• Nominal supply voltage: 5V
• Power supply (recommended): 7 - 12V
• Supply voltage (limits): 6 - 20V
• Input/output digital: 20 (including 7 that can be used as outputs PWN)
• Analog inputs: 12
• DC Current per I/O Pin: 40 my
• DC Current for 3.3V Pin: 50 my
• Flash memory: 32 KB and 4 KB used by bootloader
• SRAM: 2.5 KB
• EEPROM: 1 KB
• Clock speed: 16 MHz
• Official Arduino made in Italy

What is that the Arduino?

Arduino is an open-source electronics prototyping platform that consists of components and easy to use software.

Who is Arduino?

The Arduino kit is intended for artists, designers, enthusiasts and all who are interested in creating interactive objects.

How to use the Arduino?

The Arduino can detect are environment with the addition of sensors that you connect on its pine trees of entries.

Just then retrieve that information and process them by programming the Arduino using the Arduino development software (free). You can then drive outputs which will act on other elements like the LEDS, displays, motors, and many others.

Documentation

https://www.arduino.cc/en/Guide/ArduinoLeonardoMicro