this post was submitted on 16 May 2025
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I'm tinkering with our ventilation over-pressure function in combination with an inline fan I run when 3D printing or soldering, to get the fumes and particulates out while simultaneously not creating a massive vacuum inside. The plan is to control it with MQTT from HA to a PLC that controls the ventilation via RS-485.

Therefore I'm looking for a simple but clean looking smart plug that I can integrate with HA to let me know when the fan is on (pulling power, actual wattage is irrelevant) to automatically enable this function.

I know Sonoff makes some, but I always prefer personal advice over random search results.
Preferably Zigbee or WiFi (offline) as I don't have any Matter/Z-wave hub/dongle. Compact design and black would be nice, but not a must. Stability and ease of setup matters more than added functionality.

Does anyone have any personal experience to share?
I'm grateful if you do. Thanks!

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[–] whaleross@lemmy.world 11 points 1 month ago* (last edited 1 month ago) (2 children)

If you pick a ZigBee device and don't try to power a refrigerator or a washing machine with it, it probably doesn't matter much. Just get some reliable brand, Sonoff, IKEA, something, for wall powered stuff. Battery sensors are fine OEM from AliExpress. I'd advice against anything WiFi that requires a cloud connection, as most of them do, but that is my personal preference.

[–] infeeeee@lemm.ee 6 points 1 month ago

While Shelly wifi devices can use their cloud, it's optional. By default cloud is disabled, you can even make them report to your own MQTT server.

[–] Bronzie@sh.itjust.works 3 points 1 month ago

Yeah Shelly and Meross seem to fit the bill quite well, and can run local only. Leaning towards those two.

Cheers!