* Some AVR models contain a unique 20-digit serial number which can be used as the device serial number, while in device mode. This
* allows the host to uniquely identify the device regardless of if it is moved between USB ports on the same computer, allowing
* allocated resources (such as drivers, COM Port number allocations) to be preserved. This is not needed in many apps, and so the
* Some AVR models contain a unique 20-digit serial number which can be used as the device serial number, while in device mode. This
* allows the host to uniquely identify the device regardless of if it is moved between USB ports on the same computer, allowing
* allocated resources (such as drivers, COM Port number allocations) to be preserved. This is not needed in many apps, and so the