Guide.ArduinoLeonardoMicro History

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November 04, 2013, at 08:22 AM by Scott Fitzgerald -
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Unlike the Arduino Uno, the Leonardo and Micro won't restart your sketch when you open a serial port on the computer. That means you won't see serial data that's already been sent to the computer by the board, including, for example, most data sent in the setup() function.

This change means that if you're using any Serial print(), println() or write() statments in your setup, they won't show up when you open the serial monitor. To work around this, you can check to see if the serial port is open like so:

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Unlike the Arduino Uno, the Leonardo and Micro won't restart your sketch when you open a serial port on the computer. That means you won't see serial data that's already been sent to the computer by the board, including, for example, most data sent in the setup() function.

This change means that if you're using any Serial print(), println() or write() statments in your setup, they won't show up when you open the serial monitor. To work around this, you can check to see if the serial port is open after calling Serial.begin() like so:

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   Serial.begin(9600);
September 30, 2013, at 08:54 PM by Roberto Guido - todo's corrections
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Differences from the Arduino Uno

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Differences from the Arduino Uno

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Single processor for sketches and USB communication.

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Single processor for sketches and USB communication.

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Serial re-enumeration on reset.

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Serial re-enumeration on reset.

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No reset when you open the serial port.

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No reset when you open the serial port.

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Keyboard and mouse emulation.

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Keyboard and mouse emulation.

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Separation of USB and serial communication.

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Separation of USB and serial communication.

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Differences in pin capabilities.

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Differences in pin capabilities.

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Installing Drivers for the Leonardo and Micro

OSX

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Installing Drivers for the Leonardo and Micro

OSX

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Instructions for Windows

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Instructions for Windows

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Linux

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Linux

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Uploading Code to the Leonardo and Micro

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Uploading Code to the Leonardo and Micro

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Good Coding Practice With the Leonardo and Micro

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Good Coding Practice With the Leonardo and Micro

December 19, 2012, at 04:21 PM by Alessandro Argenio -
December 19, 2012, at 04:20 PM by Alessandro Argenio -
December 18, 2012, at 06:22 PM by Alessandro Argenio -
December 17, 2012, at 06:02 PM by Alessandro Argenio -
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  • Plug in your board and wait for Windows to begin its driver installation process. If the installer does not launch automatically, navigate to the Windows Device Manager (Start>Control Panel>Hardware) and find the Arduino Esplora listing. Right click and choose Update driver.
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  • Plug in your board and wait for Windows to begin its driver installation process. If the installer does not launch automatically, navigate to the Windows Device Manager (Start>Control Panel>Hardware) and find the Arduino Leonardo listing. Right click and choose Update driver.
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  • After a few moments, a window will tell you the wizard has finished installing software for Arduino Esplora. Press the Close button.
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  • After a few moments, a window will tell you the wizard has finished installing software for Arduino Leonardo. Press the Close button.
December 17, 2012, at 05:52 PM by Alessandro Argenio -
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December 17, 2012, at 05:07 PM by Alessandro Argenio -
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December 17, 2012, at 04:45 PM by Alessandro Argenio -
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Windows (tested on XP and 7)

The process for Windows XP and Windows 7 is similar. These screenshots are from an XP installation.

  • Plug in your board and wait for Windows to begin its driver installation process. If the installer does not launch automatically, Navigate to the Windows Device Manager (Start>Control Panel>Hardware) and find the Arduino Leonardo or Arduino Micro listing. Right click and choose Update driver.
  • If prompted to search for drivers online, choose "No, not this time". And click Next
  • When asked to install automatically or from a specific location, select "Install from a list or specific location" and press Next
  • Choose "Search for the best driver in these locations", and check the box "include this location in the search". Click the Browse button and navigate to your Arduino 1.0.1 or later installation. Select the drivers folder an click OK
  • Click Next
  • You will receive a notification that the board has not passed Windows Logo testing. Click on the button Continue Anyway
  • After a few moments, a window will tell you the wizard has finished installing software for Arduino Leonardo or Arduino Micro. Press the Finish button
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Instructions for Windows

The following instructions are for Windows 7. They are valid also for Windows XP, with small differences in the dialog windows.

  • Plug in your board and wait for Windows to begin its driver installation process. If the installer does not launch automatically, navigate to the Windows Device Manager (Start>Control Panel>Hardware) and find the Arduino Esplora listing. Right click and choose Update driver.

  • At the next screen, choose "Browse my computer for driver software", and click Next.

  • Click the Browse... button. Another dialog appears: navigate to the folder with the Arduino software that you just downloaded. Select the drivers folder an click OK, then click Next.

  • You will receive a notification that the board has not passed Windows Logo testing. Click on the button Continue Anyway.

  • After a few moments, a window will tell you the wizard has finished installing software for Arduino Esplora. Press the Close button.
December 17, 2012, at 04:40 PM by Alessandro Argenio -
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  • Choose "Search for the best driver in these locations", and check the box "incude this location in the search". Click the Browse button and navigate to your Arduino 1.0.1 or later installation. Select the drivers folder an click OK
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  • Choose "Search for the best driver in these locations", and check the box "include this location in the search". Click the Browse button and navigate to your Arduino 1.0.1 or later installation. Select the drivers folder an click OK
November 02, 2012, at 02:18 PM by Scott Fitzgerald -
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To connect the Arduino Leonardo or Micro to your computer, you'll need a Micro-B USB cable. This USB cable provides power and data to the board. When programming the Leonardo, you must choose Arduino Leonardo or Micro from the Tools > Board menu in the Arduino IDE.

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To connect the Arduino Leonardo or Micro to your computer, you'll need a Micro-B USB cable. This USB cable provides power and data to the board. When programming the Leonardo, you must choose Arduino Leonardo" or "Arduino Micro from the Tools > Board menu in the Arduino IDE.

October 31, 2012, at 08:55 PM by Scott Fitzgerald - Page creation
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