jsn_sr04t: Added options for AJ_SR04M sensor types (#4022)

components/sensor/jsn_sr04t.rst

@@ -6,7 +6,7 @@ JSN-SR04T Waterproof Ultrasonic Range Finder
     :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** 
+This sensor allows you to use the JSN-SR04T and AJ_SR04M 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.
 
@@ -18,6 +18,12 @@ 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.
 
+Configure the AJ_SR04M for mode 1:
+    - Add a 120k resistor to pad R19.
+
+Configure the AJ_SR04M for mode 2:
+    - Add a 47k resistor to pad R19.
+
 .. figure:: images/jsn-sr04t-v3-mode-select-pads.jpg
     :align: center
     :width: 50.0%
@@ -55,6 +61,7 @@ Configuration variables:
   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.
+- **model** (*Optional*): Sensor model. Available options: ``jsn_sr04t`` (default) and ``aj_sr04t``.
 - All other options from :ref:`Sensor <config-sensor>`.
 
 See Also