Screenshots From the README of HAEdwin/homeassistant-apsystems_ecu_reader.
About
APsystems ECU Reader is an integration that queries APsystems ECU hubs locally over the network. It extends an earlier community integration and adds sensors, binary sensors, numbers, buttons and switches to Home Assistant. Individual inverters can be switched on and off, and per-panel maximum power limiting is available, though both depend on the ECU model. It also covers L2 and L3 voltages for three-phase inverters, Zigbee signal strength, online sensors for each inverter, and several ECU hubs at once. Data checks and a cache keep values in place when the ECU times out or returns incomplete data. It is set up in the UI, with options for the ECU address, query interval, retries, cache count before an automatic reboot, and graph updates while inverters are offline.
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Supports
Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.
Provides
- Switches
- Sensors
Setting it up
Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.
APsystems ECU Configuration
- ECU IP address (follow connection method table in readme)
- ECU query interval in seconds (minimum 300 recommended)
- Retries when ECU fails to repond
- Cache count before auto ECU reboot (ECU-R-Pro and ECU-C models)
- Update graphs when inverters are offline
- Specify SSID (ECU-R-Pro and ECU-C models only)
- Specify password (ECU-R-Pro and ECU-C models only)
After setup
- ECU IP address (follow connection method table in readme)
- ECU query interval in seconds (minimum 300 recommended)
- Retries when ECU fails to respond
- Cache count before auto ECU reboot (ECU-R-Pro & ECU-C models)
- Update graphs when inverters are offline
- Specify SSID (ECU-R-Pro and ECU-C models only)
- Specify password (ECU-R-Pro and ECU-C models only)
Texts from the code of HAEdwin/homeassistant-apsystems_ecu_reader.
From the README
Over 1000 (measured) active installations, the estimated total number of users is 4,000+.
Shows in Vulpo
Quick Toggle card, Button card, Chart card, Apple Watch, Control Center.Information
- Installs
- 924 sharing analytics
- GitHub stars
- 212
- Connection
- Works locally
- Upkeep
- Updated in the last 6 months
- Version
- 2.15.0,
- Category
- Energy, Solar and batteries
- Kind
- Marketplace integration
- Brand
- APsystems
- Needs
- Needs the Marketplace (HACS on 2026.10 and older)
- Domain
apsystems_ecu_reader- Issues
- Report an issue













