mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-04 09:10:02 +01:00
83 lines
2.9 KiB
ReStructuredText
83 lines
2.9 KiB
ReStructuredText
ADS1115 Sensor
|
|
==============
|
|
|
|
.. warning::
|
|
|
|
This integration currently doesn't seem to work with certain chips and I'm waiting for my own ADS1115 to arrive
|
|
to diagnose the issue. If you're experiencing issues too and want to help out, please set the
|
|
:ref:`log level <logger-log_levels>` to ``VERY_VERBOSE`` and send me some logs. Thanks!
|
|
|
|
The ``ads1115`` sensor allows you to use your ADS1115 sigma-delta ADC
|
|
sensors (`datasheet <http://www.ti.com/lit/ds/symlink/ads1115.pdf>`__, `Adafruit`_) with esphomelib.
|
|
First, setup a :doc:`ADS1115 Hub </esphomeyaml/components/ads1115>` for your ADS1115 sensor and then use this
|
|
sensor platform to create individual sensors that will report the
|
|
voltage to Home Assistant.
|
|
|
|
.. figure:: images/ads1115-full.jpg
|
|
:align: center
|
|
:target: `Adafruit`_
|
|
:width: 50.0%
|
|
|
|
ADS1115 16-Bit ADC. Image by `Adafruit`_.
|
|
|
|
.. _Adafruit: https://www.adafruit.com/product/1085
|
|
|
|
.. figure:: images/adc-ui.png
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code:: yaml
|
|
|
|
ads1115:
|
|
- address: 0x48
|
|
sensor:
|
|
- platform: ads1115
|
|
multiplexer: 'A0_A1'
|
|
gain: 1.024
|
|
name: "Living Room Brightness"
|
|
|
|
Configuration variables:
|
|
~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
- **multiplexer** (**Required**): The multiplexer channel of this sensor. Effectively means between which pins you
|
|
want to measure voltage.
|
|
- **gain** (**Required**, float): The gain of this sensor.
|
|
- **name** (**Required**, string): The name for this sensor.
|
|
- **ads1115_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the
|
|
:doc:`ADS1115 Hub </esphomeyaml/components/ads1115>` you want to use this sensor.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval
|
|
to check the sensor. Defaults to ``15s``. See :ref:`sensor-default_filter`.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
|
|
Multiplexer And Gain
|
|
~~~~~~~~~~~~~~~~~~~~
|
|
|
|
The ADS1115 has a multiplexer that can be configured to measure voltage between several pin configurations. These are:
|
|
|
|
- ``A0_A1`` (between Pin 0 and Pin 1)
|
|
- ``A0_A3`` (between Pin 0 and Pin 3)
|
|
- ``A1_A3`` (between Pin 1 and Pin 3)
|
|
- ``A2_A3`` (between Pin 2 and Pin 3)
|
|
- ``A0_GND`` (between Pin 0 and GND)
|
|
- ``A1_GND`` (between Pin 1 and GND)
|
|
- ``A2_GND`` (between Pin 2 and GND)
|
|
- ``A3_GND`` (between Pin 3 and GND)
|
|
|
|
Additionally, the ADS1115 has a Programmable Gain Amplifier (PGA) that can help you measure voltages in different ranges, these are:
|
|
|
|
- ``6.144`` (measures up to 6.144V)
|
|
- ``4.096`` (measures up to 4.096V)
|
|
- ``2.048`` (measures up to 2.048V)
|
|
- ``1.024`` (measures up to 1.024V)
|
|
- ``0.512`` (measures up to 0.512V)
|
|
- ``0.256`` (measures up to 0.256V)
|
|
|
|
See Also
|
|
^^^^^^^^
|
|
|
|
- :ref:`sensor-filters`
|
|
- :doc:`adc`
|
|
- :doc:`max6675`
|
|
- :doc:`API Reference </api/sensor/ads1115>`
|
|
- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/components/sensor/ads1115.rst>`__
|