Add LetPot integration (#36770)

source/_integrations/letpot.markdown

@@ -0,0 +1,73 @@
+---
+title: LetPot
+description: Instructions on how to integrate LetPot hydroponic gardens into Home Assistant.
+ha_category:
+  - Time
+ha_release: 2025.2
+ha_iot_class: Cloud Push
+ha_config_flow: true
+ha_codeowners:
+  - '@jpelgrom'
+ha_domain: letpot
+ha_integration_type: integration
+ha_platforms:
+  - time
+---
+
+The **LetPot** {% term integration %} allows you to integrate your [LetPot](https://letpot.com/) hydroponic gardens/systems into Home Assistant.
+
+## Supported devices
+
+The following devices are supported by this integration:
+
+- LetPot Air (LPH-AIR)
+- LetPot Max (LPH-MAX)
+- LetPot Mini (LPH-MINI)
+- LetPot Pro (LPH-PRO)
+- LetPot Senior (LPH-SE)
+
+## Prerequisites
+
+To use this integration, you must first create a LetPot account and connect your hydroponic garden to Wi-Fi using the official app.
+
+{% include integrations/config_flow.md %}
+
+### Configuration parameters
+
+{% configuration_basic %}
+Email:
+    description: "The email address of your LetPot account."
+    required: true
+    type: string
+Password:
+    description: "The password of your LetPot account."
+    required: true
+    type: string
+{% endconfiguration_basic %}
+
+## Supported functionality
+
+### Entities
+
+The LetPot integration provides the following entities.
+
+#### Times
+
+- **Light on**: Time when the built-in light turns on.
+- **Light off**: Time when the built-in light turns off.
+
+{% note %}
+
+When **Light on** and **Light off** are set to the same time, the built-in light will be turned off.
+
+{% endnote %}
+
+## Data updates
+
+The integration receives updates when the device state changes, enabling immediate updates of the data in Home Assistant.
+
+## Remove integration
+
+This integration follows standard integration removal, no extra steps are required.
+
+{% include integrations/remove_device_service.md %}