Note for "Analog_to_WPM" or "Analog_to_Mode": A voltage (0-5V) applied to A0 will allow a selection of code speed in WPM of 5WPM to 50WPM. The variable choices are displayed on the LCD, until a digital HIGH is placed on D0. "ShowConversionToWPM" must be set to true, otherwise the choice may default to the next item. A voltage (0-5V) applied to A1 will allow a selection of Modes from Mode 0 to Mode 6. The variable choices are displayed on the LCD, until a digital HIGH is placed on D1. "ShowConversionToMode" must be set to true, otherwise the choice may default to the next item. If neither selection is set true, the choices will default to 15WPM, with "PARIS Calibration" as the selected activity. Dave Funk - WA7RSO - http://www.Solutions-for-Education.com