* <td>Selects the internal 2.56V ADC reference voltage, instead of using the AVR's VREF pin. When enabled, this option will
* override the VTARGET_REF_VOLTS configuration option.
* \n \n <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
* </tr>
* <tr>
* <td>VTARGET_SCALE_FACTOR</td>
* <td>Selects the internal 2.56V ADC reference voltage, instead of using the AVR's VREF pin. When enabled, this option will
* override the VTARGET_REF_VOLTS configuration option.
* \n \n <i>Ignored when compiled for targets lacking an ADC, or when NO_VTARGET_DETECT is defined.</i></td>
* </tr>
* <tr>
* <td>VTARGET_SCALE_FACTOR</td>