65 lines
2.3 KiB
ReStructuredText
65 lines
2.3 KiB
ReStructuredText
BH1750 Ambient Light Sensor
|
|
===========================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up BH1750 ambient light sensors in ESPHome.
|
|
:image: bh1750.jpg
|
|
:keywords: BH1750
|
|
|
|
The ``bh1750`` sensor platform allows you to use your BH1750
|
|
(`datasheet <http://www.mouser.com/ds/2/348/bh1750fvi-e-186247.pdf>`__)
|
|
ambient light sensor with ESPHome. The :ref:`I²C bus <i2c>` is required to be set up in
|
|
your configuration for this sensor to work.
|
|
|
|
.. figure:: images/bh1750-full.jpg
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
BH1750 Ambient Light Sensor.
|
|
|
|
.. figure:: images/bh1750-ui.png
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
sensor:
|
|
- platform: bh1750
|
|
name: "BH1750 Illuminance"
|
|
address: 0x23
|
|
measurement_time: 69
|
|
update_interval: 60s
|
|
|
|
By default the **measurement_time** is set to ``69`` which will result into measurements up
|
|
to 54612.5 lx for this sensor. For low-light situtations consider to choose a higer
|
|
measurement_time up to ``254`` which will result in a maximum measurement range up to 14835 lx.
|
|
For sunny scenes (for example outdoors with sunlight) use lower values down to ``31`` which will
|
|
give you the maximum measurement range up to 121556 lx.
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **name** (**Required**, string): The name for the sensor.
|
|
- **address** (*Optional*, int): Manually specify the I^2C address of the sensor.
|
|
Defaults to ``0x23`` (address if address pin is pulled low). If the address pin is pulled high,
|
|
the address is ``0x5C``.
|
|
- **measurement_time** (*Optional*, int): Manually specifiy the measurement time between ``31``
|
|
and ``254``. Defaults to ``69``.
|
|
- **resolution** (*Optional*, string): The resolution of the sensor in lx. One of ``4.0``,
|
|
``1.0``, ``0.5``. Defaults to ``0.5`` (the maximum resolution).
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
|
|
sensor. Defaults to ``60s``.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code
|
|
generation.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`sensor-filters`
|
|
- :doc:`tsl2561`
|
|
- :apiref:`bh7150/bh7150.h`
|
|
- `BH1750 Library <https://github.com/claws/BH1750>`__ by `@claws <https://github.com/claws>`__
|
|
- :ghedit:`Edit`
|