• DISABLE_ONE_PIN : NewPing.h
• ECHO_TIMER_FREQ : NewPing.h
• MAX_SENSOR_DELAY : NewPing.h
• MAX_SENSOR_DISTANCE : NewPing.h
• NewPingConvert : NewPing.h
• NO_ECHO : NewPing.h
• PING_MEDIAN_DELAY : NewPing.h
• US_ROUNDTRIP_CM : NewPing.h
• US_ROUNDTRIP_IN : NewPing.h