mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-16 10:55:21 +01:00
88e315e0e4
* Many example yaml tidy-ups * Update components/sensor/hlw8012.rst --------- Co-authored-by: Keith Burzinski <kbx81x@gmail.com>
304 lines
11 KiB
ReStructuredText
304 lines
11 KiB
ReStructuredText
AS5600 12-Bit Magnetic Position Sensor
|
|
======================================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up AS5600 magnetic position sensor / encoder.
|
|
:image: as5600.jpg
|
|
:keywords: AS5600 AS5600L
|
|
|
|
.. _as5600-component:
|
|
|
|
Component/Hub
|
|
-------------
|
|
|
|
The ``as5600`` sensor platform you to use your AS5600 (`datasheet <https://ams.com/documents/20143/36005/AS5600_DS000365_5-00.pdf/649ee61c-8f9a-20df-9e10-43173a3eb323>`__,
|
|
`AMS <https://ams.com/en/as5600>`__) or AS5600L (`datasheet <https://ams.com/documents/20143/36005/AS5600L_DS000545_3-00.pdf/7ade6878-7a32-2294-b88d-479d50fab6de>`__,
|
|
`AMS <https://ams.com/en/as5600l>`__) 12-bit magnetic position sensor with ESPHome. Individual sensors will be added
|
|
using the :ref:`AS5600 Sensor Platform <as5600-sensor>`. To use this hub, first setup
|
|
the :ref:`I²C Bus <i2c>` and connect the sensor to the pins specified there.
|
|
|
|
.. figure:: images/as5600-full.jpg
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
AS5600 12-Bit Magnetic Position Sensor.
|
|
|
|
.. _AMS_AS5600: https://ams.com/en/as5600
|
|
|
|
.. _AMS_AS5600L: https://ams.com/en/as5600l
|
|
|
|
.. code-block:: yaml
|
|
|
|
as5600:
|
|
dir_pin: GPIOXX
|
|
start_position: 0deg
|
|
range: 180deg
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **dir_pin** (*Optional*, int): The pin connected to the AS5600's direction pin.
|
|
See :ref:`Direction <as5600_direction>` for more information.
|
|
- **direction** (*Optional*, string): The direction that the magnet should rotate to increase values.
|
|
Used in combination with the **dir_pin**.
|
|
|
|
- ``clockwise`` (default)
|
|
- ``counterclockwise``
|
|
- **start_position** (*Optional*, int): The raw position that should be considered the start (i.e. ``0``).
|
|
See :ref:`Position / Range <as5600_position_range>`.
|
|
- **end_position** (*Optional*, int): The raw position that should be considered the end (e.g. 180deg)
|
|
of the allowable rotation range. Mutually exclusive with **range**. See :ref:`Position / Range <as5600_position_range>`.
|
|
- **range** (*Optional*, int): The allowable rotation range from the **start_position**. Mutually
|
|
exclusive with **end_position**. See :ref:`Position / Range <as5600_position_range>`.
|
|
- **hysteresis** (*Optional*, string): See datasheet.
|
|
|
|
- ``none`` (default)
|
|
- ``lsb1``
|
|
- ``lsb2``
|
|
- ``lsb3``
|
|
|
|
- **power_mode** (*Optional*, string): The power mode to run the sensor. Note: When **watchdog** is enabled,
|
|
it will switch the device to ``low3`` when there is not much change in position.
|
|
|
|
- ``nominal`` (default)
|
|
- ``low1``
|
|
- ``low2``
|
|
- ``low3``
|
|
|
|
- **watchdog** (*Optional*, boolean): Whether to enable the watchdog that puts the the chip in to
|
|
low power mode 3. Check the datasheet for more information.
|
|
Defaults to ``off``.
|
|
- **slow_filter** (*Optional*, string): See datasheet.
|
|
|
|
- ``16x`` (default)
|
|
- ``8x``
|
|
- ``4x``
|
|
- ``2x``
|
|
|
|
- **fast_filter** (*Optional*, string): See datasheet.
|
|
|
|
- ``none`` (default)
|
|
- ``lsb6``
|
|
- ``lsb7``
|
|
- ``lsb9``
|
|
- ``lsb18``
|
|
- ``lsb21``
|
|
- ``lsb24``
|
|
- ``lsb10``
|
|
|
|
- **address** (*Optional*, int): The i²c address of the sensor.
|
|
See :ref:`I²C Addresses <as5600_i2c_addresses>` for more information.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID for this AS5600 Hub.
|
|
- All other options for I²C devices described at :ref:`I²C Bus <i2c>`.
|
|
|
|
.. _as5600_direction:
|
|
|
|
Direction
|
|
---------
|
|
|
|
The AS5600 has ``direction`` pin that controls which rotation direction will cause the position value to **increase**.
|
|
This pin should be pulled low for clockwise, and pulled high for counterclockwise. If left floating, you are likely
|
|
to encounter erratic behavior.
|
|
|
|
If you would like the ESP controller to pull that pin high or low, you may configure the ``dir_pin`` and optionally, the
|
|
``direction`` option to have the ESP controller pull the pin high or low.
|
|
|
|
.. _as5600_position_range:
|
|
|
|
Position / Range
|
|
----------------
|
|
|
|
.. figure:: images/as5600-magnet-position.png
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
Position and range may be configured as one of the following:
|
|
|
|
- a value between ``-4095`` and ``4095``
|
|
- an angle between ``-360deg`` and ``360deg``
|
|
- a percentage between ``-100%`` and ``100%``
|
|
|
|
.. note::
|
|
|
|
Negative position values will be normalized to their respective positive position (e.g. -90deg would translate to 270deg).
|
|
|
|
The AS5600 reports 2 position values. The value for both types of position values will always be a whole number between 0 and 4095.
|
|
|
|
A "raw" position value is not filtered, scaled, etc. So a value of `0` is always when the north end of the magnet is at the top of
|
|
the chip, 2048 is always when the north end of the magnet is as the bottom of the chip, etc.
|
|
|
|
The regular/scaled position is filtered and scaled based on the sensor configuration (e.g. ``start_position``, ``end_position``, ``range``, etc).
|
|
For example, let's say we have the following component config:
|
|
|
|
.. code-block:: yaml
|
|
|
|
as5600:
|
|
start_position: 90deg
|
|
range: 180deg
|
|
direction: clockwise
|
|
dir_pin: GPIOXX
|
|
|
|
- If the magnet north was at the right side of the chip (i.e. 1024 / 90deg raw position), the scaled position would report a value of ``0``.
|
|
- If the magnet north was at the bottom of the chip (i.e. 2048 / 180deg raw position), the scaled position would report a value of ``2048``.
|
|
- If the magnet north was at the left of the chip (i.e. 3096 / 270deg raw position), the scaled position would report a value of ``4095``.
|
|
- If the magnet north was at the top of the chipe (i.e. 0 / 0deg raw position), the scaled position would be out of range (which also has
|
|
it's own caveats discussed below).
|
|
|
|
.. note::
|
|
|
|
You may specify an ``end_position`` that is less than the ``start_position``. When doing so, the allowable range will start at the
|
|
``start_position`` and continue through to the highest position value (i.e. ``4095``) and then continue from ``0`` until it reaches
|
|
the ``end_position``.
|
|
|
|
|
|
.. warning::
|
|
|
|
The datasheet calls out that the minimum angle that can be configured (start and end position, or start and range) it 18 degrees.
|
|
Configuring anything less than that may yield un-expected results.
|
|
|
|
.. _as5600_i2c_addresses:
|
|
|
|
I²C Addresses
|
|
-------------
|
|
|
|
The AS5600 address is not configurable and must be ``0x36``. However, if using an AS5600L,
|
|
the default address should be ``0x40`` and it is configurable.
|
|
|
|
.. _as5600-sensor:
|
|
|
|
Sensor
|
|
------
|
|
|
|
The ``as5600`` sensor allows you to publish the angle/position measurement from your AS5600 with ESPHome.
|
|
First, setup an :ref:`AS5600 Hub <as5600-component>` for your AS5600 sensor and then use this
|
|
sensor platform to create individual sensors that will report the position to Home Assistant.
|
|
|
|
.. figure:: images/as5600-ui.jpg
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
as5600:
|
|
dir_pin: GPIOXX
|
|
|
|
sensor:
|
|
- platform: as5600
|
|
name: Position
|
|
raw_position:
|
|
name: Raw Position
|
|
gain:
|
|
name: Gain
|
|
magnitude:
|
|
name: Magnitude
|
|
status:
|
|
name: Status
|
|
|
|
.. _as5600-sensor-config:
|
|
|
|
Configuration variables:
|
|
************************
|
|
|
|
- **out_of_range_mode** (*Optional*, string): How to treat out of range values. Only applicable if configured
|
|
for a range less than 360 degrees. Defaults to ``min_max``. See :ref:`Out of Range Mode <as5600-out-of-range-mode>`.
|
|
- **as5600_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the
|
|
:ref:`AS5600 Hub <as5600-component>` you want to use this sensor.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval
|
|
to check the sensor. Defaults to ``60s``.
|
|
- **raw_position** (*Optional*): Reports the raw (un-scaled, un-filtered) position of the magnet.
|
|
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
- **gain** (*Optional*): Information about the automatic gain control. Typically for diagnostic purposes.
|
|
The datasheet says this will be between 0-255 when powered by 5v and between 0-128 when powered by 3.3v.
|
|
Ideally the value should be close to the middle of the respective range.
|
|
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
- **magnitude** (*Optional*): Information about the detected magnitude. Typically for diagnostic purposes.
|
|
The expected scale does not appear to be defined in the datasheet, however, AMS provides a
|
|
`user guide <https://ams.com/documents/20143/36005/Position%20Sensors_UG000359_1-00.pdf/65a99825-c115-f2f0-9167-6efad8e27c20>`__
|
|
which contains pictures that show it as a scale between ``0`` and ``3000``. Typically this value is seen somewhere
|
|
in the neighborhood of ``2100`` for a well positioned magnet.
|
|
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
- **status** (*Optional*): Information about the magnet status. Typically for diagnostic purposes.
|
|
See :ref:`Magnet Status <as5600-magnet-status>`
|
|
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
|
|
.. _as5600-out-of-range-mode:
|
|
|
|
Out of Range Mode
|
|
*****************
|
|
|
|
- ``min_max`` (default)
|
|
- ``nan``
|
|
|
|
When using a range less that 360deg, there would be a range of raw values that would be considered "out of range". By default (``min_max`` mode), the AS5600
|
|
splits that range in half and reports ``0`` while in the half of the "out-of-range" range closest to the ``start_position`` and it reports
|
|
``4095`` while in the half of the "out-of-range" range closest to the ``end_position`` / end of the ``range``. Alternatively, you may set to ``nan``
|
|
mode where the sensor will publish ``NAN`` (i.e. "Unknown") when the position falls outside the narrowed range.
|
|
|
|
.. _as5600-magnet-status:
|
|
|
|
Magnet Status
|
|
*************
|
|
|
|
The magnet status should report one of the following values:
|
|
|
|
- ``2`` indicates that no magnet was detected.
|
|
- ``4`` indicates that the magnet was detected and has good reading.
|
|
- ``5`` indicates that the magnet was detected, but is too strong. Measurements may appear to be stuck if the magnet is too strong.
|
|
- ``6`` indicates that the magnet was detected, but is too weak. Measurements may still be possible in this state.
|
|
|
|
.. _as5600-converting-position:
|
|
|
|
Converting Position
|
|
*******************
|
|
|
|
You may desire the position to be converted from the native ``0`` thru ``4095`` to degrees, or perhaps a percentage of the allowable range.
|
|
Here are some examples to make that happen:
|
|
|
|
.. figure:: images/as5600-ui-derived.jpg
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
as5600:
|
|
id: my_as5600
|
|
sensor:
|
|
- platform: as5600
|
|
update_interval: 1s
|
|
name: Angle
|
|
unit_of_measurement: '°'
|
|
accuracy_decimals: 2
|
|
icon: mdi:rotate-right
|
|
filters:
|
|
- delta: 1
|
|
- lambda: 'return x * as5600::RAW_TO_DEGREES * id(my_as5600).get_range_scale();'
|
|
|
|
.. code-block:: yaml
|
|
|
|
as5600:
|
|
id: my_as5600
|
|
sensor:
|
|
- platform: as5600
|
|
update_interval: 1s
|
|
name: Percent
|
|
unit_of_measurement: '%'
|
|
accuracy_decimals: 2
|
|
icon: mdi:rotate-right
|
|
filters:
|
|
- delta: 1
|
|
- lambda: 'return (x / as5600::POSITION_COUNT) * 100;'
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`i2c`
|
|
- :ref:`sensor-filters`
|
|
- :apiref:`as5600/as5600.h`
|
|
- :ghedit:`Edit`
|