bool IsBME280Measuring()
{
byte[] writeBuf = { I2C_BMA280_REG_ADDR_STATUS };
byte[] readBuf = new byte[1];
I2CBMA280Sensor.WriteRead(writeBuf, readBuf);
return((readBuf[0] & 0x08) != 0);
}
async void InitBME280()
{
string
aqs = I2cDevice.GetDeviceSelector(I2C_CONTROLLER_NAME);
var dis = await DeviceInformation.FindAllAsync(aqs);
var settings = new I2cConnectionSettings(BMA280_I2C_ADDR);
settings.BusSpeed = I2cBusSpeed.FastMode;
I2CBMA280Sensor = await I2cDevice.FromIdAsync(dis[0].Id, settings);
if (I2CBMA280Sensor != null)
{
byte[] writeBuf_CTRL_MEAS = { I2C_BMA280_REG_CTRL_MEAS_ADDR, 0x27 };
I2CBMA280Sensor.Write(writeBuf_CTRL_MEAS);
byte[] writeBuf_CTRL_HUM = { I2C_BMA280_REG_ADDR_CTRL_HUM, 0x01 };
I2CBMA280Sensor.Write(writeBuf_CTRL_HUM);
I2CBMA280Sensor.WriteRead(new byte[] { I2C_BMA280_REG_ADDR_CARIB_00 }, carib_00_26);
I2CBMA280Sensor.WriteRead(new byte[] { I2C_BMA280_REG_ADDR_CARIB_27 }, carib_27_41);
dig_T1 = (carib_00_26[1] << 8) | carib_00_26[0];
dig_T2 = (carib_00_26[3] << 8) | carib_00_26[2];
dig_T3 = (carib_00_26[5] << 8) | carib_00_26[4];
dig_P1 = (carib_00_26[7] << 8) | carib_00_26[6];
dig_P2 = (carib_00_26[9] << 8) | carib_00_26[8];
dig_P3 = (carib_00_26[11] << 8) | carib_00_26[10];
dig_P4 = (carib_00_26[13] << 8) | carib_00_26[12];
dig_P5 = (carib_00_26[15] << 8) | carib_00_26[14];
dig_P6 = (carib_00_26[17] << 8) | carib_00_26[16];
dig_P7 = (carib_00_26[19] << 8) | carib_00_26[18];
dig_P8 = (carib_00_26[21] << 8) | carib_00_26[20];
dig_P9 = (carib_00_26[23] << 8) | carib_00_26[22];
dig_H1 = carib_00_26[24];
dig_H2 = (carib_27_41[1] << 8) | carib_27_41[0];
dig_H3 = carib_27_41[2];
dig_H4 = (carib_27_41[3] << 4) | (0x0f & carib_27_41[4]);
dig_H5 = (carib_27_41[5] << 4) | ((carib_27_41[4] >> 4) & 0xf);
dig_H6 = carib_27_41[6];
}
}
