#define sidetone_line 4 // connect a speaker for sidetone
#define potentiometer A0 // Speed potentiometer (0 to 5 V) Use pot from 1k to 10k
#define ptt_tx_1 0 // PTT ("push to talk") lines
#define ptt_tx_2 0 // Can be used for keying fox transmitter, T/R switch, or keying slow boatanchors
#define ptt_tx_3 0 // These are optional - set to 0 if unused
#define ptt_tx_4 0
#define ptt_tx_5 0
#define ptt_tx_6 0
#define tx_key_dit 0 // if defined, goes active for dit (any transmitter) - customized with tx_key_dit_and_dah_pins_active_state and tx_key_dit_and_dah_pins_inactive_state
#define tx_key_dah 0 // if defined, goes active for dah (any transmitter) - customized with tx_key_dit_and_dah_pins_active_state and tx_key_dit_and_dah_pins_inactive_state
#define potentiometer_enable_pin 0 // if defined, the potentiometer will be enabled only when this pin is held low; set to 0 to ignore this pin
// See https://github.com/k3ng/k3ng_cw_keyer/wiki/385-Feature:-CW-Decoder for details
#define cw_decoder_pin 0 // This is for use with external decoding hardware
#define cw_decoder_audio_input_pin 0 // This is for audio detection decoding using OPTION_CW_DECODER_GOERTZEL_AUDIO_DETECTOR; this must be an analog pin!
#define cw_decoder_indicator 0 // Output - goes HIGH when cw tone is detected by OPTION_CW_DECODER_GOERTZEL_AUDIO_DETECTOR
#define capactive_paddle_pin_inhibit_pin 0 // if this pin is defined and is set high, the capacitive paddle pins will switch to normal (non-capacitive) sensing mode