External I2C bus / NFC

Connector pinout

Pin

Signal

Voltage

1

VCC

+5.0V

2

I2C SCL

+3.3V

3

I2C SDA

+3.3V

4

NFC IO

+3.3V

5

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.