Ultrasound sensor

Connector pinout

Pin	Signal	Voltage
1	VCC	+5.0V
2	ULTRASOUND TRIGGER	+5.0V
3	ULTRASOUND ECHO	+5.0V
4	GND	GND

RDDRONE-FMUK66 Rev. C schematic

RDDRONE-FMUK66 Rev. B schematic

Rev. B (and older boards) are not supported anymore. This information is left for reference.