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PIC18F452 and SHT75

 
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delene



Joined: 13 Oct 2003
Posts: 32

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PIC18F452 and SHT75
PostPosted: Mon Jul 21, 2008 1:15 pm     Reply with quote
Hi..

I am using the pic18f452 and the SHT75 humidity chip. I have used the code that has been pasted in the working example. My humidity is always -4.6 and my temperature is -39.9..

I have checked my wiring and it seems to be right. I have a 10K pull on the data line but not on the clock line. I have tried a pull down on the clock line and it makes no difference. I have tried a pull up on the clock line and again no difference!!!

I am using a 5V supply and have checked my voltage across my gnd and 5v and it is 5.04V..

Does anyone have any suggestions or ideas as to what is wrong??

Many thanks
Delene
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