In the following instruction only the Leonardo board will be mentioned, but the same procedure is valid for all the Arduino boards. Plug in your board and wait for Windows to begin its driver installation process. Right click and choose Update driver. At the next screen, choose "Browse my computer for driver software", and click Next. Click the Browse The Mega automatically draw power from either the USB or an external power supply.
Connect the board to your computer using the USB cable. You have a Mega, therefore it has an ATmega microcontroller, selected by default as processor. Select the serial device of the board from the Tools Serial Port menu. To find out, you can disconnect your board and re-open the menu; the entry that disappears should be the Arduino or Genuino board. Reconnect the board and select that serial port.
Now, simply click the 'Upload' button in the environment. Wait a few seconds - you should see the RX and TX leds on the board flashing. If the upload is successful, the message 'Done uploading. A few seconds after the upload finishes, you should see the pin 13 L LED on the board start to blink in orange.
Extract the. Right click on the hardware device you wish to update and choose Update Driver Software 4. Choose to select the location of the new driver manually and browse to the folder where you extracted the driver 5. If you already have the driver installed and want to update to a newer version got to "Let me pick from a list of device drivers on my computer" 6.
Click "Have Disk" 7. Browse to the folder where you extracted the driver and click Ok. If you install this package, your device will be properly recognized by compatible systems, and might even benefit from new features or various bug fixes.
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