About
Technische Alternative CoE reads digital and analog data from a C.M.I. over the CanOverEthernet interface. It runs locally and creates sensors and binary sensors from the channels of the configured CAN-IDs. Values are polled every minute by default, and the update interval can be changed in the options. Values from Home Assistant entities such as sensors, numbers, input numbers and input booleans can also be sent to the C.M.I., on change and every 10 minutes. It relies on the Coe to HTTP add-on, which is detected automatically, or an external server whose address is given during setup. A repair notice can point out a missing CAN-ID, and new channels appear after a reload.
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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
- Sensors
Setting it up
Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.
Set up CoE to HTTP Server
- Base url of the server (http://IP:PORT)
- Target CAN-IDs (Comma separated)
After setup
- Update interval (minutes)
- Target CAN-IDs (Comma separated)
Texts from the code of DeerMaximum/Technische-Alternative-CoE.
Troubleshooting
- Repair noticesNotices it can show in Settings, Repairs:Add missing CAN-ID
From the README
The integration polls the digital and analog data from a Technische Alternative C.M.I. via the CanOverEthernet(CoE) interface.
To apply changes from the CoE configuration, reload the integration.
Shows in Vulpo
Chart card, Apple Watch.Information
- Installs
- 106 sharing analytics
- GitHub stars
- 19
- Connection
- Works locally
- Upkeep
- Updated in the last 6 months
- Version
- v2.1.9,
- Category
- Climate, Heat pumps and air conditioning
- Kind
- Marketplace integration
- Needs
- Needs the Marketplace (HACS on 2026.10 and older)
- Domain
ta_coe- Issues
- Report an issue











