Sorry for the fast hype....
The Vi does not work with the SHT21.
Communication works but the conversion from the measured RH% and T values is not correct.
I did put in the conversion math from the SHT21 datasheet but it doesnt work either.
Probably the USB-dongle does need to recieve some other commands to work with the SHT21 but until now I couldnt figure it out.
Does anybody have another solution?
Can you put the vi you have NOW and perhaps some of us can see if we can fix it and share that with you...
I am not sure WHICH vi you are trying...
thanks for the fast reply!
I was trying to modify the llb shared before in this thread in order to work with the SHT21.
I tried to put in the valueconversion for the SHT21 (red) rather than the one for the SHT75 (blue) but as said, I only get weird numbers.
It is in the IOWarrior_SHT75_GetTempHumid.vi of the attached llb.
Funny thing is: when I use the conversion for the SHT75 I get the same wrong numbers as when I use the Sensirion USB-Software and tell it that a SHT75 is attached (as in: 10 degC lower Temperature readings, some % off RH readings).
But when I use the "right" conversions as in the attachment I get weird numbers way off something meaningful.
Your code looks fine!
I do not know why it does not work.
I had quite a difficult time getting any help from Sensirion.
Those guys at Code Warrior are helpful if you can get to them.
I will be looking into it more!
Just 10 Deg C off or really strange numbers!
Wonder if a bit is "shifted" one too many or something crazy like that!
Does anybody know, how to read or write the "status register" of the SHT-75 sensor through EK-H5? I want to aquire data via LabView with measurement resolution of 12 bit (temperature) and 8 bit (hamidity) and on/off sensor's heating element.
Thank you very much!
I have 2 sensor SHT21+ 2 EK-H5. I want to put together into a GUI in LabView but I am beginer and I don't have ideea what I supposed to do. Can you help me with that?
I want to run both sensors in program... I saw a few post from you but i don't understood to much.
Really appreciate for you'r help!