can somebody tell me how to calculate the humidity from the data taken from the eeprom of the sensor HH10D.
- posted
16 years ago
how to calculate the humidity using the humidity sensor HH10D
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- posted
16 years ago
.
Google turns up the PDF datasheet:
formatting link
Page 3 shows the sums needed.
HTH
Graham w.
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- posted
16 years ago
Did you read the data sheet?
Are you measuring the frequency it is sending out? Can you read the data from the eeprom?
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- posted
16 years ago
You're supposed to read calibration factor "TCS", but it's not used. Presumably the temperature coefficient, which would require a separate measurement of temperature if you need temperature compensation, and an equation which is not given. The old Philips capacitive sensors changed 0.1%/K typically, as well as being fairly nonlinear above 60% RH, but I suppose this thing is okay for low-end consumer goods.
Best regards, Spehro Pefhany
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