Re: [Paparazzi-devel] SHT75 Issues

[Martin Mueller]

Hi Christoph,

the SHT75 does not have I2C, it uses some similar proprietary protocol. 
Use humid_sht_i2c for the true-I2C SHT25 only.

The humid_sht GPIO pins default to the ADC1 connector (see humid_sht.h). 
You need to add a 10k pull-up if ADC1 is used (or redefine the GPIO pins 
to use the I2C connector that have pull-ups).

Martin

On 27.05.2011 22:25, Christoph Niemann wrote:
> Hi everyone,
>
> currently I'm trying to get a SHT75 humidity Sensor to work. No succes
> so far. I have used the humid_sht and humid_sht_i2c module. I also tried
> it with adding the recommented 10K pullup into the DATA-line. When using
> the i2c module, the only value that is send down is 0 for serial1 and
> serial2. If I use the humid_sht module the humid is 0.1 and doesn't
> change and the temp is -39 deg. Those values also appear, if no SHT is
> plugged. Does anyone the SHT with the current git version, or is my SHT
> broken (I read they are fragile). If it is broken, wich humdity-sensor
> would you use?
>
> Thank you for your help.
>
> Christoph
>
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