Home Assistant integration

A local-polling Home Assistant integration for the Inowattio's Nemesis controller.

Features

• Zeroconf auto-discovery (_nemesis._tcp.local.) plus manual host/port setup.
• Polls the controller every 3 seconds over HTTP (/status and /data).
• Exposes sensors for:
  • Grid power (W)
  • Controller state
  • IP address, API protocol, Unit name, Unit ID, Software version (diagnostic)

Requirements

• Home Assistant 2026.4.3 or newer.
• A Nemesis controller reachable on your LAN (default port 6969).

Installation

HACS (recommended)

1. Add this repository as a custom integration repository in HACS.
2. Install Inowattio from the HACS integrations list.
3. Restart Home Assistant.

Manual

1. Copy custom_components/inowattio/ into your Home Assistant config/custom_components/ directory.
2. Restart Home Assistant.

Setup

Go to Settings → Devices & Services → Add Integration → Inowattio. If the controller is on the same network it will usually be auto-discovered; otherwise enter its host/IP and port manually.

License

See the repository for license details.