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+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`
diff --git a/images/jsn-sr04t-v3.jpg b/images/jsn-sr04t-v3.jpg
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diff --git a/index.rst b/index.rst
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--- a/index.rst
+++ b/index.rst
@@ -258,7 +258,7 @@ Distance
     Ultrasonic Sensor, components/sensor/ultrasonic, ultrasonic.jpg, Acoustic distance
     VL53L0x, components/sensor/vl53l0x, vl53l0x.jpg, IR optical distance
     Zio Ultrasonic Sensor, components/sensor/zio_ultrasonic, zio_ultrasonic.jpg, Acoustic distance
-
+    JSN-SR04T, components/sensor/jsn_sr04t, jsn-sr04t-v3.jpg, Acoustic distance
 
 Electricity
 ***********