Add new QNAP QSW integration (#22417)

source/_integrations/qnap_qsw.markdown

@@ -0,0 +1,39 @@
+---
+title: QNAP QSW
+description: Instructions on how to integrate QNAP QSW within Home Assistant.
+ha_release: 2022.5
+ha_category:
+  - Sensor
+ha_iot_class: Local Polling
+ha_config_flow: true
+ha_domain: qnap_qsw
+ha_platforms:
+  - sensor
+ha_codeowners:
+  - '@Noltari'
+ha_integration_type: integration
+---
+
+This integration interacts with the local API of [QNAP QSW managed switches](https://www.qnap.com/en/product/series/qsw-managed-switches).
+
+{% include integrations/config_flow.md %}
+
+{% configuration_basic %}
+URL:
+  description: "Device URL (usually http://IP)"
+Username:
+  description: "Username (usually admin)"
+Password:
+  description: "Password"
+{% endconfiguration_basic %}
+
+## Sensors
+
+The following *sensors* are created:
+
+| Condition           | Description                        |
+| :------------------ | :--------------------------------- |
+| fan_1_speed         | Fan 1 Speed.                       |
+| fan_2_speed         | Fan 2 Speed.                       |
+| temperature         | Switch temperature.                |
+| uptime              | Uptime seconds.                    |