Difference: TemperatureHumidity (2 vs. 3)

Revision 32017-10-25 - uli

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META TOPICPARENT	name="CourseExercises"

Measuring temperature and humidity

Goal:

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int dht11GetChecksum(void);
int dht11GetDeviceChecksum();
time_t dht11GetValidMeasTimeStamp(void);

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The sequence will be to first call dht11Init(), the make a measurement with dht11Measurement() and then read out whatever you are interested in.

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The sequence will be to first call dht11Init(), then make a measurement with dht11Measurement() and then read out whatever you are interested in.

You will find the include file dht11.h in /opt/ucc/include and the library libdht11.so in /opt/ucc/lib

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Documentation has been included in doxygen format in the source files. Using the doxygen tool (installed on your Raspberry PI) you can generate documentation for this library automatically. You will find it as html file, which you can look at with your browser. The URL is: file:///opt/ucc/exercises/solutions/dht11/hml/index.html

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The URL is: file:///opt/ucc/exercises/solutions/dht11/html/index.html

The URL only works when looking at the TWiki site from the Raspberry Pi. Otherwise you will have to look up the index.html file in the html sub directory created by doxygen.

Exercise 1: Data taking

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META FILEATTACHMENT	attachment="dht11.png" attr="" comment="" date="1508947930" name="dht11.png" path="dht11.png" size="612270" user="uli" version="1"
META FILEATTACHMENT	attachment="dht11Data.png" attr="" comment="" date="1508947930" name="dht11Data.png" path="dht11Data.png" size="39644" user="uli" version="1"

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META FILEATTACHMENT	attachment="dht11.odt" attr="" comment="" date="1508957658" name="dht11.odt" path="dht11.odt" size="60277" user="uli" version="1"

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