I2C driver for HTU21D

amit singh6

Intellectual 450 points

Other Parts Discussed in Thread: TMP006

Hello

I implement i2c driver for HTU21D , but during HALI2C init there is requiremment of 2 argument

HalI2CInit(ADDRESS, callback);

when i goes in sensor tag project there predefind variable for address like

for IR tempature sensor TMP006_I2C_ADDRESS 0x44

for humidity sensor HAL_SHT21_I2C_ADDRESS 0x40

for gyro sensor HAL_GYRO_I2C_ADDRESS 0x68

then I enter address in my case

over 11 years ago

0 Peder over 11 years ago

TI__Expert 6995 points

Amit,

That looks about right. Then you register a callback function as well.

Peder

0 amit singh6 over 11 years ago in reply to Peder

Intellectual 450 points

hello peder

I give you some example becase these are fixed address in different sensor .I am not getting you , I want to know what i have to pass in ADDRESS in my case when i have HTU15D sensor

0 Peder over 11 years ago in reply to amit singh6

TI__Expert 6995 points

Hi Amit,

I am not familiar with the HTU15D sensor, and a google search yielded nothing. Do you have a data sheet for that one? It should state how to address it on an I2C bus.

Peder

0 amit singh6 over 11 years ago in reply to Peder

Intellectual 450 points

Hello peder

Its not HTU15D , its HTU21D , please refer what i have to pass in address .

thanks in advance

0 Vijayasarathy Shastri over 11 years ago in reply to amit singh6

TI__Intellectual 1840 points

Hi Amit,

I would suggest that you contact the makers of HTU21D, meas-spec folks for technical support on this sensor.

Like Peder mentioned, we do not have expertise on this sensor.

They have provided the I2C driver sample code in the below link. Check it

http://www.meas-spec.com/Workarea/DownloadAsset.aspx?id=11091&TargetLang=1033

Would recommend to read their datasheet thoroughly.

Regards,

Vijay

0 Fredrik K over 11 years ago in reply to amit singh6

TI__Guru** 106705 points

Hi Amit,

As Vijay said, this is what you have datasheets for. I will give you a hint: Open the HTU21D datasheet and search for "address".

Cheers
Fredrik

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I2C driver for HTU21D