• Arduino Leonardo no Headers

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.

The board is based on the ATmega32u4. 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.


  • Microcontroller: ATMega32u4
  • Operating voltage: 5 V
  • Digital I/O pins: 20
  • Clock speed: 16 Mhz

Part List

  • 1x board


Dimensions L x W x H 5.334cm x 6.858cm x 2cm
Screw Holes 4
Operating Voltage 5V
Input Voltage (Recommended) 7-12V
Input Voltage (Limits) 6-20V
Microcontroller ATmega32u4
Digital I/O Pins 14
Clock Speed 16 MHz

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Arduino Leonardo no Headers

  • Arduino
  • The Arduino Leonardo no Headers is a development board based on Atmel ATmega32u4 microcontroller.
  • --
  • Availability: 1 (France)
  • 19.31€ Euro 10.73€ Euro
  • EUR 103.01 Left For Free Shipping

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Tags: arduino, microcontroller