Home Assistant - OpenHardwareMonitor Integration

This repository contains Home Assistant configuration packages, including integration with OpenHardwareMonitor for hardware monitoring.

OpenHardwareMonitor Package

Monitors hardware sensors from two servers running OpenHardwareMonitor:

Server 1: http://10.0.0.243:8085/
Server 2: http://10.0.0.244:8085/

Installation

Copy the package file to your Home Assistant packages directory:
```
cp packages/openhardwaremonitor.yaml /config/packages/
```
Copy the binary_sensors.yaml (if you don't have one already):
```
cp binary_sensors.yaml /config/
```

Ensure your configuration.yaml has packages enabled:

homeassistant:
  packages: !include_dir_named packages

binary_sensor: !include binary_sensors.yaml

Configure the Server 243 Status sensor via UI:
- Go to Settings → Devices & Services → Add Integration
- Search for "Ping (ICMP)"
- Add integration with these settings:
  - IP: 10.0.0.243
  - Name: Server 243 Status
Restart Home Assistant

Sensors Created

For each server (243 and 244), the following sensors are created:

CPU Temperature (sensor.server_243_cpu_temperature / sensor.server_244_cpu_temperature)
- Monitors CPU package or core temperature
- Unit: °C
- Update interval: 30 seconds
CPU Load (sensor.server_243_cpu_load / sensor.server_244_cpu_load)
- Monitors total CPU load
- Unit: %
- Update interval: 30 seconds
RAM Usage (sensor.server_243_ram_usage / sensor.server_244_ram_usage)
- Monitors memory usage
- Unit: GB
- Update interval: 30 seconds
GPU Temperature (sensor.server_243_gpu_temperature / sensor.server_244_gpu_temperature)
- Monitors GPU core temperature (NVIDIA/AMD)
- Unit: °C
- Update interval: 30 seconds

Binary Sensors (Status Monitoring)

Server 243 Status (binary_sensor.server_243_status)
- Configured via UI (Ping integration)
- Monitors online/offline state of Server 243
- Perfect for adding a status badge to your dashboard

Requirements

OpenHardwareMonitor must be running on both servers with web server enabled
Default port: 8085
Servers must be accessible from Home Assistant instance

Customization

To modify the scan interval, edit the scan_interval value in openhardwaremonitor.yaml:

rest:
  - resource: http://10.0.0.243:8085/data.json
    scan_interval: 30  # Change this value (in seconds)

To add additional sensors, you can follow the same template pattern and navigate the JSON structure from OpenHardwareMonitor's /data.json endpoint.

Troubleshooting

Sensors show "unknown":

Verify OpenHardwareMonitor is running on the target servers
Check that the web server is enabled in OpenHardwareMonitor settings
Test the endpoint manually: http://10.0.0.243:8085/data.json
Check Home Assistant logs for any REST sensor errors

No GPU sensor data:

Some systems may not have GPU monitoring enabled
Verify OpenHardwareMonitor detects your GPU
Check if the GPU sensor name matches the template pattern

Status sensor not working:

Ensure the Ping (ICMP) integration is added via UI
Ensure ICMP (ping) is allowed through any firewalls
Check Home Assistant logs for ping integration errors

Example Dashboard Card

type: entities
title: Server Hardware Monitoring
entities:
  - entity: binary_sensor.server_243_status
    name: Server 243 Status
  - entity: sensor.server_243_cpu_temperature
    name: Server 243 CPU Temp
  - entity: sensor.server_243_cpu_load
    name: Server 243 CPU Load
  - entity: sensor.server_243_ram_usage
    name: Server 243 RAM
  - entity: sensor.server_243_gpu_temperature
    name: Server 243 GPU Temp
  - entity: sensor.server_244_cpu_temperature
    name: Server 244 CPU Temp
  - entity: sensor.server_244_cpu_load
    name: Server 244 CPU Load
  - entity: sensor.server_244_ram_usage
    name: Server 244 RAM
  - entity: sensor.server_244_gpu_temperature
    name: Server 244 GPU Temp

Example Badge Card for Status

type: badge
entity: binary_sensor.server_243_status
name: Server 243

License

This configuration is provided as-is for personal use.

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