in FDC1004.cpp [27:35]
void FDC1004::writeRegister16(uint8_t reg, uint16_t data)
{
Wire.beginTransmission(_addr);
Wire.write(reg); //send address
Wire.write( (uint8_t) (data >> 8) );
Wire.write( (uint8_t) data);
//Wire.write( data, 2);
Wire.endTransmission();
}