HomeAssistant Add-Ons

Home Assistant Tools Repository

The Home Assistant Tools repository is a collection of custom tools and integrations designed to enhance the functionality of Home Assistant, an open-source home automation platform. Hosted on Gitea at https://gitea.oisec.net/cliff/homeassistant-tools, this repository provides utilities primarily focused on power monitoring and management for specific hardware devices. As of January 15, 2026, the repository contains a custom Home Assistant component for Cisco SB350 PoE switches and a Python script for Supermicro server power monitoring.

Cisco SB350 PoE Custom Component

The custom_components/cisco_sb350_poe directory houses a Home Assistant integration for monitoring Power over Ethernet (PoE) on Cisco Small Business 350 Series switches. This component allows users to poll power usage data and integrate it into Home Assistant for automation and monitoring purposes.

Installation and Usage Example

To install this custom component:

1. Download the repository from Gitea.
2. Copy the cisco_sb350_poe folder into your Home Assistant's custom_components directory.
3. Restart Home Assistant.
4. Add the integration via the Home Assistant UI under Integrations > Add Integration, searching for "Cisco SB350 PoE".

Example configuration in configuration.yaml (if manual setup is needed):

cisco_sb350_poe:
  host: '192.168.1.1'
  community: 'public'  # SNMP community string

Once set up, you can create automations, such as notifying if PoE power exceeds a threshold:

automation:

 - alias: High PoE Power Alert
   trigger:
     - platform: numeric_state
       entity_id: sensor.cisco_sb350_poe_power
       above: 100
   action:
     - service: notify.mobile_app
       data:
         message: "PoE power usage is high!"

This example assumes the sensor entity provides power in watts; adjust based on actual entity attributes.

Supermicro Power Monitoring Script

The supermicro-power.py script is a standalone Python tool for querying power usage from Supermicro servers via their Baseboard Management Controller (BMC) using the Redfish API. It publishes the data to an MQTT broker, making it suitable for integration with Home Assistant or other MQTT-enabled systems. The script can be downloaded directly from the repository.

Script Functionality

The script performs the following:

• Imports necessary libraries: requests, json, paho.mqtt.client, time.
• Uses a credentials module (not included) for MQTT host and BMC credentials.
• For each configured BMC:

 * Sends a GET request to the Redfish endpoint /redfish/v1/Chassis/1/Power.
 * Extracts total power consumption and per-PSU (Power Supply Unit) metrics.
 * Publishes values to MQTT topics like supermicro/<bmc>/power/total/watt and per-PSU topics.

• Handles SSL verification (disabled) and basic authentication.

Usage Example

To use the script:

1. Create a credentials.py file with:

mqtt_host = 'your.mqtt.broker.ip'
supermicro_bmc = {
    'bmc1.example.com': {'username': 'ADMIN', 'password': 'password'},
    # Add more BMCs as needed
}

1. Run the script: python3 supermicro-power.py

In Home Assistant, subscribe to the MQTT topics using the MQTT integration to create sensors:

mqtt:
  sensor:
    - name: "Supermicro Total Power"
      state_topic: "supermicro/bmc1.example.com/power/total/watt"
      unit_of_measurement: "W"

This allows for dashboard visualizations or automations based on power usage.

External Links

• Home Assistant Official Website
• Home Assistant on Wikipedia (external reference)
• Redfish (specification) on Wikipedia (external reference)