2022-02-18 22:25:38 +01:00
|
|
|
MAX44009 Ambient Light Sensor
|
|
|
|
|
=============================
|
|
|
|
|
|
|
|
|
|
.. seo::
|
|
|
|
|
:description: Instructions for setting up MAX44009 ambient light sensors in ESPHome.
|
|
|
|
|
:image: max44009.svg
|
|
|
|
|
:keywords: MAX44009
|
|
|
|
|
|
|
|
|
|
The ``max44009`` sensor platform allows you to use your MAX44009
|
|
|
|
|
(`datasheet <https://datasheets.maximintegrated.com/en/ds/MAX44009.pdf>`__)
|
2024-08-14 04:33:05 +02:00
|
|
|
ambient light sensor with ESPHome. This sensor features an ultra-wide 22-bit dynamic range
|
|
|
|
|
from 0.045 lux to 188,000 lux. The :ref:`I²C bus <i2c>` is required to be set up in your
|
2022-02-18 22:25:38 +01:00
|
|
|
configuration for this sensor to work.
|
|
|
|
|
|
|
|
|
|
The ``max44009`` sensor can operate in two modes: ``low_power`` (default) and ``continuous``:
|
|
|
|
|
|
|
|
|
|
- In ``low_power`` mode, the sensor measures lux intensity only once every 800ms regardless of integration time.
|
|
|
|
|
This mode allows the part to operate at its lowest possible supply current.
|
|
|
|
|
|
|
|
|
|
- In ``continuous`` mode, the sensor continuously measures lux intensity. That is, as soon as one reading is finished, a
|
|
|
|
|
new one begins. If integration time is 6.25ms, readings are taken every 6.25ms. If integration time is 800ms,
|
|
|
|
|
readings are taken every 800ms. In this mode, the part consumes slightly higher power than in the ``low_power``
|
|
|
|
|
mode.
|
|
|
|
|
|
|
|
|
|
- Additionally mode can be set to ``auto``. In this mode, the mode will be chosen according to the ``update_interval``
|
|
|
|
|
value. If ``update_interval < 800``, ``continuous`` mode will be selected. Otherwise, ``low_power`` mode will be selected.
|
|
|
|
|
|
|
|
|
|
Configuration variables:
|
|
|
|
|
------------------------
|
|
|
|
|
|
|
|
|
|
- **address** (*Optional*, int): Manually specify the I²C address of the sensor. Defaults to ``0x4A``.
|
|
|
|
|
- **mode** (*Optional*, string): Measurement mode. One of ``auto``, ``low_power``, ``continuous``.
|
|
|
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
|
|
|
|
|
sensor. Defaults to ``60s``.
|
|
|
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
|
|
|
|
|
|
See Also
|
|
|
|
|
--------
|
|
|
|
|
|
|
|
|
|
- :ref:`sensor-filters`
|
|
|
|
|
- :doc:`bh1750`
|
|
|
|
|
- `MAX44009 Library <https://github.com/RobTillaart/Max44009>`__ by `@RobTillaart <https://github.com/RobTillaart>`__
|
|
|
|
|
- :ghedit:`Edit`
|
