Arduino Leonardo mit Pin Headers

The Arduino Leonardo is a simple yet very versatile Arduino board based on the atmega32u4 processor.

It has a few interesting features:

• Single processor architecture. There is only one microcontroller that communicates directly via usb with a computer. This makes the board cheaper and simpler The Arduino core libraries have been enhanced to provide a USB device stack. This allows the Arduino Leonardo to emulate a computer keyboard or a mouse. In the near future we expect to release more devices like MIDI.
• More analog inputs, the leonardo has 12 of them!
• More connectivity: Since the communication with the computer is done through a simulated serial port over USB, the hardware serial port on the processor is free for your applications.

Specifications:

• Microcontroller: ATmega32u4
• Operating Voltage: 5V
• Input Voltage (recommended)L: 7-12V
• Input Voltage (limits): 6-20V
• Digital I/O Pins: 20
• PWM Channels: 7
• Analog Input Channels: 12
• DC Current per I/O Pin: 40 mA
• 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)
• EEPROM: 1 KB (ATmega32u4)
• Clock Speed: 16 MHz

Documents:

• Arduino Home Page