Temperature Sensor

[jingram]

Hi

Have you guys has any success with reading the temperature from the LSM9DS0?

[Mark Williams]

Yes.
In C it would be;

        uint8_t block[2];
        readBlock(0x80 | OUT_TEMP_L_XM, sizeof(block), block);
        temp = (int16_t)(block[0] | block[1] << 8);
	float temperature_c = (float)temp / 8.0 + 25;
        float temperature_f = temperature_c * 1.8 + 32;

Mark --OzzMaker.com --

[jingram]

Hi Mark

Thanks for this.
I got the / 8, but where did you find to add the base 25 deg C in the spec sheet.

[Mark Williams]

We have been told that this is a reference number to use when calculating temperature on the chip.

If you are using a BerryIMU, you can get the ambient temperature from the BMP180.

Mark --OzzMaker.com --

[PEERIS]

Hi,

I have no succeed to work with BMP180 with the python code. The output data are like :
”
Starting temperature conversion…
Starting pressure conversion…
Calculating temperature…
Calculating pressure…

Temperature: 827 C
Pressure: -4386776 hPa
”

My aim is to use barometer as an altitude sensor
Is there an explication of BMP180 code to use the sensors as an altimeter ?

Thx

[Author]

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