KMtronic
kmtronic
Integrate KMtronic devices into Home Assistant. KMtronic offers a large range of IP-connected relays that can be controlled over your local area network. This integration maps each of the relays as a separate device, enabling you to control various areas of your home (e.g. using each relay to control different garden sprinkler areas, or controlling the electrical distribution of your house from a central board).
In Apple Home through HomeKit Bridge
What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.
| Entity | Shows up as | Note |
|---|---|---|
switch | Switch or outlet |
What people report
KMtronic web relays work over the LAN, but one 8-relay board returned 404 on switching.
- Partly works1
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| KMtronic 8-relay web board | Partly works Local | Relay switches but device returns 404, raising errorsSaved copyThe problem KMTronic integration installed and KMTronic 8-relay (web) device configured on 192.168.2.31. Relays are detected as expected and device & entities created. If however you try to switch any relay, an error is displayed and written to the log, e.g for 1st relay (switch.relay1): Failed to call service switch.turn_off. 404, message='Not found', url=URL('http://192.168.2.31/FF0100') Curious thing: the relay is actually switched! But the error prohibits any automations to run. ### What is version of Home Assistant Core has the issue? core-2021.3.3 ### What was the last working version … Excerpt saved from GitHub on 2026-10-23. | Issue #47893 · 2021-03 |
Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.
How it connects
Local push
Talks to the device on your network, and the device tells Home Assistant the moment something changes.
Details
| Installs (analytics) | 37 (0.01%) |
|---|---|
| Added in | Home Assistant 2021.3 |
| Set up in the UI | Yes |
| Maintainers | @dgomes |
In ReReHome
Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.
Bridges get their own settings page listing the accessories behind them.
