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Gijs Noorlander
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The HTML parser does not parse our own rules which is where it is used. So until we have a rules highlighter, we use the ``none`` highlighter.
142 lines
3.9 KiB
ReStructuredText
142 lines
3.9 KiB
ReStructuredText
.. include:: ../Plugin/_plugin_substitutions_p05x.repl
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.. _P052_S11_page:
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S11
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===
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|P052_typename|
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|P052_status|
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.. image:: P052_S11_1.jpg
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Introduction
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------------
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This is the flagship CO2 sensor from Swedish company Senseair.
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Specifications:
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* 400 to 5000 ppm
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* 5V (3.05-5.5VDC)
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* Peak 125mA, avarage 38μA
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* 11.5 x 33.5 x 19.7 mm
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* UART/I2C communication
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* More than 15 years life span
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* No burn-in needed, will stabilize after 8 days at worst depending on placement environment
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Wiring
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------
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Circuit wiring (S11 seen from top, with the 5 holes left and the 4 holes right):
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.. code-block:: none
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ESP S11 (UART)
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GPIO (14) <--> TX (5th hole of the 5 holes)
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GPIO (12) <--> RX (4th hole [below TX])
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Power
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5.0V <--> VBB (2nd hole of the 5 holes, 3.3V can also be used)
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GND <--> GND (1st hole)
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3.3V <--> VDDIO (3rd hole [middle])
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As you can see only pins on the "5 via side" are being used. But...
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Set up the S11 according to this simple schematics. For continuous use you should connect
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the EN (S11) to VBB (S11), EN is used to wake the sensor on demand. By using VBB this will
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make the EN go high = sensor is activated. But currently the feature of putting the S11 to
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sleep isn't supported by the plugin, thus you need to have EN set to high using VBB.
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The COMSEL pin is used if you want to use I2C communication, in that case you pull this
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low (0.4V or less). Leave open/floating if UART is used.
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VDDIO is supply voltage for TX/SCL/nRDY and thus need 3.3V.
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nRDY is an output signaling when the measurement is ready. The plugin does not use that pin.
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DVCC is an output, only to be used for driving small loads like a level converter.
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.. danger::
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Power needed: 3.05-5.5V. PLEASE OBSERVE THAT FEEDING THE S11 WITH 5.5+V WILL DAMAGE THE INTERNAL LAMP AND BREAK THE UNIT - GIVING FALSE VALUES!
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Setup
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-----
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.. image:: P052_Setup_S11_1.png
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Task settings
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~~~~~~~~~~~~~
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* **Device**: Name of plugin
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* **Name**: Name of the task (example name **CO2**)
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* **Enable**: Should the task be enabled or not
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Sensor
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^^^^^^
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* **GPIO <-- TX**: TX is generally set to **GPIO 14 (D5)**.
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* **GPIO --> RX**: RX is generally set to **GPIO 12 (D6)**.
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* **Sensor**: Only **Carbon Dioxide** is supported by the S11.
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Data acquisition
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^^^^^^^^^^^^^^^^
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* **Send to controller** 1..3: Check which controller (if any) you want to publish to. All or no controller can be used.
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* **Interval**: How often should the task publish its value (5..15 seconds is normal).
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Indicators (recommended settings)
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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.. csv-table::
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:header: "Indicator", "Value Name", "Interval", "Decimals", "Extra information"
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:widths: 8, 5, 5, 5, 40
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"Error status", "N/A", "", "", "Used for tSense (K70), K30, K33"
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"Carbon dioxide", "ppm", "16", "0", ""
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"Temperature", "N/A", "", "", "Used for tSense (K70), K30, K33"
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"Humidity", "N/A", "", "", "Used for tSense (K70), K30, K33"
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"Relay status", "N/A", "", "", "Used for tSense (K70), K30, K33"
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"Temperature adjustment", "N/A", "", "", "Used for tSense (K70), K30, K33"
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"ABC period", "N/A", "", "", "Used for tSense (K70), K30, K33"
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.. note:: If you want to use the relative carbon dioxide percentage (2000ppm = 100% and 350ppm = 0%) you should use this
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:code:`100-(2000-%value%)/(2000-350)*100` as a formula. And instead of :code:`ppm` as value name you should use
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:code:`RCO2` (relative CO2) and 1 decimal.
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Rules examples
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--------------
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.. code-block:: none
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on CO2#Level do
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if [CO2#Level]>2000
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Publish,%sysname%/Alarm,CO2 level is too high!
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endif
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endon
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Commands available
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~~~~~~~~~~~~~~~~~~
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.. include:: P052_commands.repl
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Where to buy
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------------
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.. csv-table::
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:header: "Store", "Link"
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:widths: 5, 40
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"First Byte","`Link 1 ($) <https://firstbyte.shop/products/s11>`_"
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|affiliate|
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More pictures
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-------------
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.. image:: P052_S11_2.png
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.. image:: P052_S11_3.jpg
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.. image:: P052_S11_4.jpg
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