// #define FEATURE_POTENTIOMETER // do not enable unless you have a potentiometer connected, otherwise noise will falsely trigger wpm changes
// #define FEATURE_SIDETONE_SWITCH // adds switch control for the sidetone output. requires an external toggle switch (assigned to an arduino pin - see keyer_pin_settings.h).
// #define FEATURE_SIDETONE_NEWTONE // Use the NewTone library, ~1k smaller code size than the standard tone library. Uses timer1 (pins 9 or 10) https://bitbucket.org/teckel12/arduino-new-tone/wiki/Home
// #define FEATURE_SERIAL_HELP
// #define FEATURE_HELL // Hellscreiber Mode
// #define FEATURE_PS2_KEYBOARD // Use a PS2 keyboard to send code - Change keyboard layout (non-US) in K3NG_PS2Keyboard.h. Additional options below.
// #define FEATURE_USB_KEYBOARD // Use a USB keyboard to send code - Uncomment three lines in k3ng_keyer.ino (search for note_usb_uncomment_lines)
// #define FEATURE_CW_COMPUTER_KEYBOARD // Have an Arduino Due or Leonardo act as a USB HID (Human Interface Device) keyboard and use the paddle to "type" characters on the computer -- uncomment this line in ino file: #include <Keyboard.h>
// #define FEATURE_SLEEP // go to sleep after x minutes to conserve battery power (not compatible with Arduino DUE, may have mixed results with Mega and Mega ADK)
// #define OPTION_WINKEY_DISCARD_BYTES_AT_STARTUP // if ASR is not disabled, you may need this to discard errant serial port bytes at startup
// #define OPTION_WINKEY_STRICT_EEPROM_WRITES_MAY_WEAR_OUT_EEPROM // with this activated the unit will write non-volatile settings to EEPROM when set by Winkey commands
#define OPTION_WINKEY_IGNORE_LOWERCASE // Enable for typical K1EL Winkeyer behavior (use for SkookumLogger version 1.10.14 and prior to workaround "r" bug)
// #define OPTION_WINKEY_PINCONFIG_PTT_CONTROLS_PTT_LINE // Have Winkeyer PTT setting activate/deactivate PTT line rather than control buffered character PTT hold
// #define OPTION_MORE_DISPLAY_MSGS // additional optional display messages - comment out to save memory
// #define OPTION_WATCHDOG_TIMER // this enables a four second ATmega48/88/168/328 watchdog timer; use for unattended/remote operation only
// #define OPTION_MOUSE_MOVEMENT_PADDLE // experimental (just fooling around) - mouse movement will act like a paddle
// #define OPTION_NON_ENGLISH_EXTENSIONS // add support for additional CW characters (i.e. À, Å, Þ, etc.)
// #define OPTION_DISPLAY_NON_ENGLISH_EXTENSIONS // LCD display suport for non-English (NO/DK/DE) characters - Courtesy of OZ1JHM
// #define OPTION_UNKNOWN_CHARACTER_ERROR_TONE
// #define OPTION_DO_NOT_SAY_HI
// #define OPTION_PS2_NON_ENGLISH_CHAR_LCD_DISPLAY_SUPPORT // makes some non-English characters from the PS2 keyboard display correctly in the LCD display (donated by Marcin sp5iou)
// #define OPTION_PS2_KEYBOARD_RESET // reset the PS2 keyboard upon startup with 0xFF (contributed by Bill, W9BEL)
// #define OPTION_ADVANCED_SPEED_DISPLAY //enables "nerd" speed visualization on display: wpm, cpm (char per min), duration of dit and dah in milliseconds and ratio (contributed by Giorgio, IZ2XBZ)
// #define OPTION_PERSONALIZED_STARTUP_SCREEN // displays a user defined string of characters on the second or fourth row of the screen during startup. 1602 display requires OPTION_DO_NOT_SAY_HI
// #define OPTION_SWAP_PADDLE_PARAMETER_CHANGE_DIRECTION // reverses the up/down direction when using the paddles to change the wpm or sidetone frequency
