298bf49048
Add a fixture to run the sample only when the DHT sensor HX330x is present (shield) on the nucleo_f40re board 'fixture_i2c_hs300x' The stm32f401 Nucleo board itself has no sensor mounted Signed-off-by: Francois Ramu <francois.ramu@st.com>
60 lines
1.6 KiB
ReStructuredText
60 lines
1.6 KiB
ReStructuredText
.. _dht_polling:
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Generic Digital Humidity Temperature sensor polling sample
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##########################################################
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Overview
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********
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This sample application demonstrates how to use digital humidity temperature
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sensors.
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Building and Running
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********************
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This sample supports up to 10 humidity/temperature sensors. Each sensor needs to
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be aliased as ``dhtN`` where ``N`` goes from ``0`` to ``9``. For example:
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.. code-block:: devicetree
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/ {
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aliases {
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dht0 = &hs300x;
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};
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};
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Make sure the aliases are in devicetree.
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It also requires a correct fixture setup when the sensor is present.
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For the correct execution of that sample in twister, add into boards's
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map-file next fixture settings::
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- fixture: fixture_i2c_hs300x
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Then build and run with:
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.. zephyr-app-commands::
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:zephyr-app: samples/sensor/dht_polling
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:board: <board to use>
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:goals: build flash
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:compact:
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Sample Output
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=============
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.. code-block:: console
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hs300x@44: temp is 25.31 °C humidity is 30.39 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.44 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.37 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.39 %RH
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hs300x@44: temp is 25.31 °C humidity is 30.37 %RH
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hs300x@44: temp is 25.31 °C humidity is 30.35 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.37 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.37 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.39 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.44 %RH
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hs300x@44: temp is 25.51 °C humidity is 30.53 %RH
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