Getting Windows to recognize the controller

This appendix will cover two basic controller designs that are common for RepRap-based printers:

• Arduino Mega 2560 is based on the ATmega2560 microchip (the older ATmega 1280 may also be used on older machines)
• Sanguinololu is based on the ATMEGA644P microchip

If this is the first time you have tried to upload some firmware, you'll discover that there is a need to install the drivers that are specific to the controller.

For the Arduino Mega, you'll need to follow these steps:

1. Plug the board in using the USB connection. Windows will attempt to find a device driver for the board and will most likely fail.
2. Open Device Manager in your system. Locate the yellow exclamation mark labeled Arduino Mega 2560 under Ports or Other Devices.
3. Choose the "Browse my computer for driver software" option. Locate the drivers folder in the Arduino folder. Select the drivers folder and then click on Next to install. The Arduino Mega should now be recognized...