Arduino Leonardo

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.

Using FreeRTOS multi-tasking in Arduino

by Phillip Stevens

  • 244,357 views
  • 50 comments
  • 186 respects

Arduino HID-Based CNC Pendant

Project tutorial by Erik de Ruiter

  • 45,266 views
  • 49 comments
  • 69 respects

Arduino PC Monitor

Project tutorial by zakrzu

  • 71,786 views
  • 31 comments
  • 67 respects

Indoor Air Quality Monitoring System

Project tutorial by Team East West University

  • 91,527 views
  • 21 comments
  • 92 respects

USBcycle: Ride Through Your Virtual World!

Project showcase by Tazling

  • 21,658 views
  • 25 comments
  • 33 respects

Use the Force... Or your Brainwaves?

Project tutorial by Tamas Imets

  • 54,998 views
  • 20 comments
  • 136 respects

Autonomous Navigation and 2D Mapping

Project in progress by Avirup Basu

  • 60,199 views
  • 16 comments
  • 57 respects

HVAC Controller Retrofit

Project showcase by desbiensl

  • 10,495 views
  • 21 comments
  • 35 respects

Ways to Use Arduino as USB to TTL Converter

by Patel Darshil

  • 93,493 views
  • 13 comments
  • 18 respects

Build a simple DAC for your Arduino

Project showcase by Arduino_Scuola

  • 98,845 views
  • 10 comments
  • 13 respects

Rangefinder for Garage Parking with Arduino

Project tutorial by AppsByDavideV

  • 13,929 views
  • 15 comments
  • 34 respects

Throttle Quadrant and Trim Wheel

Project tutorial by markbennettuk

  • 15,104 views
  • 14 comments
  • 50 respects

Arduino RFID unlock Mac (Linux and Win)

by Giovanni Gentile

  • 9,464 views
  • 13 comments
  • 24 respects

Arduino EMF Detector A.K.A Ghost Detector

Project showcase by Patel Darshil

  • 24,053 views
  • 10 comments
  • 26 respects

Temperature and Humidity Sensor

by Amarantowy

  • 27,947 views
  • 8 comments
  • 39 respects

GamePad using Android mobile sensors and Arduino

Project tutorial by Ashraf Nabil

  • 14,252 views
  • 9 comments
  • 21 respects

Sesame

Project showcase by Gibran Malheiros

  • 11,493 views
  • 9 comments
  • 24 respects

Arduino PowerPoint Pointer

Project tutorial by Hugo Gomes

  • 23,692 views
  • 7 comments
  • 27 respects

Car GPS tracker with thinger.io map integration

Project tutorial by tormods

  • 5,854 views
  • 9 comments
  • 14 respects

Simple UNO calculator

Project tutorial by Joprp05

  • 29,108 views
  • 5 comments
  • 26 respects

Alexa, Turn On THIS Lamp: Smart 3D Sensor for Amazon Echo

Project tutorial by 3 developers

  • 6,760 views
  • 6 comments
  • 32 respects
Add projectSign up / Login