mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-12-27 17:37:45 +01:00
67 lines
2.3 KiB
ReStructuredText
67 lines
2.3 KiB
ReStructuredText
|
JSN-SR04T Waterproof Ultrasonic Range Finder
|
||
|
|
============================================
|
||
|
|
|
||
|
|
.. seo::
|
||
|
|
:description: Instructions for setting up JSN-SR04T waterproof ultrasonic distance sensor in ESPHome.
|
||
|
|
:image: jsn-sr04t-v3.jpg
|
||
|
|
:keywords: JSN-SR04T
|
||
|
|
|
||
|
|
This sensor allows you to use the JSN-SR04T Waterproof Ultrasonic Range Finder **in Mode 1 and 2**
|
||
|
|
with ESPHome to measure distances. This sensor can measure
|
||
|
|
ranges between 25 centimeters and 600 centimeters with a resolution of 1 millimeter.
|
||
|
|
|
||
|
|
Configure the JSN-SR04T for mode 1:
|
||
|
|
- **V1.0 and V2.0**: Add a 47k resistor to pad R27.
|
||
|
|
- **V3.0**: Short pad M1 or add 47k resistor to pad mode.
|
||
|
|
|
||
|
|
Configure the JSN-SR04T for mode 2:
|
||
|
|
- **V1.0 and V2.0**: Add a 120k resistor to pad R27.
|
||
|
|
- **V3.0**: Short pad M2 or add 120k resistor to pad mode.
|
||
|
|
|
||
|
|
.. figure:: images/jsn-sr04t-v3-mode-select-pads.jpg
|
||
|
|
:align: center
|
||
|
|
:width: 50.0%
|
||
|
|
|
||
|
|
JSN-SR04T Waterproof Ultrasonic Range Finder Mode Select Pads.
|
||
|
|
|
||
|
|
In mode 1 the module continuously takes measurements approximately every 100mS and outputs the distance on the TX pin at 9600 baud.
|
||
|
|
In this mode :ref:`sensor-filters` are highly recommended.
|
||
|
|
|
||
|
|
In mode 2 the module takes a measurement only when a trigger command of 0x55 is sent to the RX pin on the module.
|
||
|
|
The module then outputs the distance on its TX pin. The frequency of the measurements can be set with the **update_interval** option.
|
||
|
|
|
||
|
|
To use the sensor, first set up an :ref:`uart` with a baud rate of 9600 and connect the sensor to the specified pin.
|
||
|
|
|
||
|
|
.. figure:: images/jsn-sr04t-v3.jpg
|
||
|
|
:align: center
|
||
|
|
:width: 70.0%
|
||
|
|
|
||
|
|
JSN-SR04T Waterproof Ultrasonic Range Finder.
|
||
|
|
|
||
|
|
.. code-block:: yaml
|
||
|
|
|
||
|
|
# Example configuration entry
|
||
|
|
sensor:
|
||
|
|
- platform: "jsn_sr04t"
|
||
|
|
name: "Distance"
|
||
|
|
update_interval: 1s
|
||
|
|
|
||
|
|
|
||
|
|
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``. Not applicable in mode 1.
|
||
|
|
- **uart_id** (*Optional*, :ref:`config-id`): The ID of the :ref:`UART bus <uart>` you wish to use for this sensor.
|
||
|
|
Use this if you want to use multiple UART buses at once.
|
||
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
||
|
|
|
||
|
|
See Also
|
||
|
|
--------
|
||
|
|
|
||
|
|
- :ref:`uart`
|
||
|
|
- :ref:`sensor-filters`
|
||
|
|
- :apiref:`jsn_sr04t/jsn_sr04t.h`
|
||
|
|
- :ghedit:`Edit`
|