Cloud-backed integration for inverters / hybrid solar systems sold under the SmartESS, EnergyMate, Fronus Solar mobile apps, and the dessmonitor.com / eybond.com web monitor.
It talks to the cloud over REST + WebSocket and exposes:
- Canonical sensors — battery / grid / PV / load / energy totals, normalized across firmwares.
- Direct-protocol sensors — Axpert (PI30), InfiniSolar PI18, and SMG2 Modbus RTU, relayed through the cloud's HEX transport.
- Writable settings — output priority, max charging current, voltage thresholds, etc. (Number / Select entities).
- Virtual battery — Coulomb-counting SoC for inverters that don't publish capacity directly.
- Optional WebSocket push — sub-cadence updates for power sensors when the account has the paid "fast data" add-on.
- Wiki — supported devices, FAQ, troubleshooting, recipes.
- Configuration guide — every option in the config / options flow, recommended profiles, virtual-battery tuning, migration notes.
🎉 The repository is in the HACS default community store.
Search for DESS Monitor in HACS and install it directly.
If it isn't listed, add the repo manually:
Or for HACS 2.0+:
- Open the HACS panel.
- Three-dot menu → Custom Repositories.
- Add:
- URL:
https://github.com/Antoxa1081/home-assistant-dess-monitor - Type: Integration
- URL:
- Click Add, then install DESS Monitor from the store.
- Restart Home Assistant.
Then Settings → Devices & Services → Add Integration → DESS Monitor.
Minimum Home Assistant version: 2024.11
| Area | What you get |
|---|---|
| Cloud REST polling | Live data + energy flow + parameter catalog (queryDeviceParsEs) on configurable cadence. |
| WebSocket push | Optional push updates for power sensors (paid "fast data" account add-on required). |
| Direct protocols | axpert (PI30 ASCII) · pi18 (InfiniSolar) · smg2_modbus (RTU). Selectable per entry. |
| Dynamic settings | Writable Number / Select entities for inverter configuration values. |
| Virtual battery | Per-device capacity (Ah), full voltage, chemistry → SoC + power sensors. |
| Diagnostics | Built-in HA diagnostics download (auto-redacted). Optional freshness sensors (Last Sample Time, WebSocket Last Frame At). |
See the Configuration guide for every option and recommended profile.
2341, 2376, 2428 and others reported by the community — see the Wiki for the up-to-date list.
If your inverter isn't recognized or a value looks wrong, please open an issue with a diagnostics file attached (Settings → Devices & Services → Dess Monitor → ⋮ → Download diagnostics). Include the inverter model and devcode (visible on the device page).
This integration goes through the dessmonitor.com cloud. If you want to bypass the cloud and poll the inverter directly over the local network / serial link:
Speaks the native protocols (Axpert / PI18 / SMG2 Modbus) locally — no account, no rate limits, sub-second updates. Both integrations can coexist.
- dess-monitor-mqtt — standalone MQTT client for NodeRED / non-HA setups.
