reading SHT11 RH/Temp
Posted 26 July 2012 - 06:51 AM
Posted 26 July 2012 - 09:06 AM
Please describe all connections to the U3 and SHT11.
i connected a 10K resistor between VDD and data line
i connected a a 100nF capacitor between VDD and GND
Is that correct ???
See the following:
What problem are you having? Perhaps the example works fine, but your sensor is not working or is not corrected properly?
Your "labjack python EI 1050 example .exe" doesn t work for UE9 pro and U3.
What do you mean by "rebuild"? If you have LabVIEW and a U3 you should simply open "U3 Single EI-1050 Example.vi" and run it.
I tried to rebuild a vi using UE9 multiple EI1050 or U3 single EI1050 without result
Your minimum connections should be:
Red (Power) FIO6 (This is your 3.3V power supply)
Black (Ground) GND
Green (Data) FIO4
White (Clock) FIO5 (Also need a 10k pull-up resistor from FIO5 to FIO6)
Beyond those minimum connections you might need filters, but you should be able to get the probe to work with just those minimum connections first.
Most likely the sensor is not working or is not corrected properly.
I always have this error "LabJack Error #54: Error with SHT ACK occured at LJUD_GetNextResult.vi"
That is the driver. You have it, and you are using it. LJControlPanel uses it. The python example uses it. The LabVIEW VIs use it. The fact that the LabVIEW VI runs and gives you a proper errorcode tells me that you have the driver installed.
I saw there is a dll called "labjackuw.dll".
do i have to use it? where can i find it.
Posted 27 August 2012 - 05:10 AM
I m sorry, it's a SHT11 protoboard that i use.
you can look at datasheet on this page http://www.mikroe.co...1x-proto-board/
so i connected the sensor directly to U3 in this way :
*GND to GND
*SDA to FIO4
*SCL to FIO5
*VCC to FIO7
and it doesn't work. really i don't understand....
can you please help me to find the solution.
Posted 27 August 2012 - 11:41 AM
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