mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-01 08:39:52 +01:00
112 lines
4.3 KiB
ReStructuredText
112 lines
4.3 KiB
ReStructuredText
VL53L0X Time Of Flight Distance Sensor
|
|
======================================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up VL53L0X distance sensors in ESPHome.
|
|
:image: vl53l0x.jpg
|
|
:keywords: VL53L0X
|
|
|
|
The ``vl53l0x`` sensor platform allows you to use VL53L0X optical time of flight
|
|
(`datasheet <https://www.st.com/resource/en/datasheet/vl53l0x.pdf>`__,
|
|
`ST <https://www.st.com/en/imaging-and-photonics-solutions/vl53l0x.html>`__) with ESPHome
|
|
to measure distances. The sensor works optically by emitting short infrared pulses
|
|
and measuring the time it takes the light to be reflected back
|
|
|
|
The sensor can measure distances up to 2 meters, though that figure depends significantly
|
|
on several conditions like surface reflectance, field of view, temperature etc. In general
|
|
you can expect surfaces up to 60cm to work, after that you need to make sure the surface is reflecting
|
|
well enough (see also section 5 of datasheet).
|
|
|
|
.. figure:: images/vl53l0x.png
|
|
:align: center
|
|
:width: 100.0%
|
|
|
|
The :ref:`I²C Bus <i2c>` is required to be set up in your configuration for this sensor to work.
|
|
|
|
- ``VCC`` connects to 3V3 (``3V3`` will output 3.3V), or directly connect ``VCC`` to 3.3V
|
|
- ``GND`` connects to ground
|
|
- ``SCL`` connects I2C SCL (clock)
|
|
- ``SDA`` connects I2C SDA (data)
|
|
- ``GPIO1`` is not used by ESPHome
|
|
- ``XSHUT`` connects to free GPIO pin. Enable/disable device. This is optional if there is only one
|
|
VL53L0X sensor on the I²C bus and the default ``0x29`` address is used. Otherwise this is required.
|
|
|
|
|
|
|
|
.. figure:: images/vl53l0x-full.jpg
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
VL53L0X Time Of Flight Distance Sensor.
|
|
|
|
.. figure:: images/vl53l0x-ui.png
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Simple configuration entry example
|
|
sensor:
|
|
- platform: vl53l0x
|
|
name: "VL53L0x Distance"
|
|
address: 0x29
|
|
update_interval: 60s
|
|
long_range: true
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **name** (**Required**, string): The name of the sensor.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
|
|
sensor. Defaults to ``60s``.
|
|
- **signal_rate_limit** (*Optional*, float): Set the return signal rate limit in units of MCPS
|
|
(mega counts per second). This is the minimum signal amplitude detected by the sensor necessary
|
|
for it to report a valid reading. Setting a lower value may increase the range of the sensor
|
|
but also increases the chance of getting inaccurate readings. Defaults to ``0.25``.
|
|
- **long_range** (*Optional*, boolean): Set the sensor in long range mode. The signal_rate_limit is overruled
|
|
to ``0.1``. Defaults to ``false``.
|
|
- **address** (*Optional*, int): Manually specify the i2c address of the sensor. Defaults to ``0x29``.
|
|
If an address other the ``0x29`` is specified, the sensor will be dynamically re-addressed at startup.
|
|
A dynamic re-address of sensor requires the ``enable_pin`` configuration variable to be assigned.
|
|
If more then one VL53L0X sensor is used on the same i2c bus, a unique address must be specified per sensor.
|
|
- **enable_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The pin connected to XSHUT
|
|
on vl53l0x to enable/disable sensor. **Required** if not using address ``0x29`` which is the cause if you
|
|
have multiple VL53L0X on the same i2c bus. In this case you have to assign a different pin to each VL53L0X.
|
|
- **timeout** (*Optional*, :ref:`config-time`): Sensor setup timeout. Default to ``10ms``.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Muliple VL53L0X sensors on same i2c bus
|
|
# Example configuration entry
|
|
sensor:
|
|
- platform: vl53l0x
|
|
name: "distance1"
|
|
id: distance1
|
|
address: 0x41
|
|
enable_pin: GPIO16
|
|
timeout: 200us
|
|
update_interval: 500ms
|
|
unit_of_measurement: "m"
|
|
|
|
- platform: vl53l0x
|
|
name: "distance2"
|
|
id: distance2
|
|
address: 0x42
|
|
enable_pin: GPIO17
|
|
timeout: 200us
|
|
update_interval: 500ms
|
|
unit_of_measurement: "m"
|
|
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`sensor-filters`
|
|
- :apiref:`vl53l0x/vl53l0x_sensor.h`
|
|
- `vl53l0x-arduino library <https://github.com/pololu/vl53l0x-arduino/>`__ by `Pololu <https://github.com/pololu>`__
|
|
- :ghedit:`Edit`
|