The Arduino Leonardo is based on the ATmega32u4 micro-controller board. It has a total of 20 digital I/O pins (of which seven could be used as PWM outputs and 12 for analog input purposes), a 16-MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything that is required to support the micro-controller’s operation and connects it to a PC with a USB cable / power it up with an AC-DC adapter / battery to get started.
All above boards Arduino Leonardo is different however the ATmega32u4 has a built-in USB communication process, eliminating the need for a secondary processor. This allows the board to appear to be a connected computer that can be operated by a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

Arduino Leonardo Specs:

  • Microcontroller ATmega32u4
  • Operating Voltage 5V
  • Input Voltage (Recommended) 7-12V
  • Input Voltage (limits) 6-20V
  • Digital I/O Pins 20
  • PWM Channels 7
  • Analog Input Channels 12
  • DC per I/O Pin 40 mA
  • DC for 3.3V Pin 50 mA
  • Memory 32 KB (ATmega32u4) of which 4 KB for bootloader
  • S-RAM 2.5 KB (ATmega32u4)
  • EEP-ROM 1 KB (ATmega32u4)
  • Clock Speed 16 MHz
  • Length 68.6 mm
  • Width 53.3 mm
  • Weight 20 g

Arduino Leonardo Pinout:

Ardunio leonardo pinout

Package Includes :

1 x Arduino Leonardo R3 Board.

Additional information

Weight 0.1 kg


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