Can Nuaire PIV ECO-Link be controller via home assistant?

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I own Nuaire Drimaster Eco Link PIV system, this one to be precise: LINK. I don’t have any accessories.

In Amazon’s description, it lists Humidity Sensor - DRI-ECO-RH as an available optional accessory. The manufacturer’s website states that this sensor:

This sensor tracks the levels of relative humidity in the home; the set point can be dictated by the occupant and programmed via the sensor itself. If the level should rise above the set point, it will send a signal to the unit, mounted in the loft, to boost in order to provide additional ventilation and therefore maintain good indoor air quality.

Now this is exactly what I want to do, but I don’t think a simple sensor like this is worth nearly £300 they’re asking for it.

Is there any transmiter/receiver I could buy for my Home Assistant setup that would allow me to control the PIV unit in my loft remotely using automations? I got a spare ESP32 laying around, maybe that could be used somehow?

I would appreciate if someone could direct me in the right direction.

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I’m of zero help but did you get anywhere with this one? I’m investigating doing something similar (if it’s technically possible) as I suspect that three dehumidifiers are a tad inefficient!

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Nope, nothing yet but I’m leaving this post here in hope that one day someone will reply with a solution.

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I’ve been looking into a PIV system and I want to control it via home assistant. I can’t help with the controller aspect, but I wonder if it could be controlled by using a mains relay to turn the power to the unit off and on?

I’ve found the frequency they use (SRD). Maybe the rtl_433 project can help?

RF enabled DRI-ECO devices operate at a frequency of 868.3 MHz .

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At this moment I just have it connected via sonoff zigbee switch which i use to remotely turn it on and off according to my automation.

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That’s my plan too. I guess you can’t control the different power levels but that shouldn’t matter much to me

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Does the unit remember it’s speed setting when switched with a sonoff?
I dont have one installed just yet, but researching in advance.

This thread might be of use? Honeywell CH/DHW via RF - evohome, sundial, hometronics, chronotherm

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Yes it does, at least for me.

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You will need to buy a USB dongle (about £35), and will need to do some hacking about - but the ramses_cc integration can definitely act as a remote for the Nuaire PIVs.

The next version (I am the author) will need less hacking, and some future version will add support for using non-Nuaire Humidity/CO2 sensors.

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Yep, I’ve had a read through some of your thread. Top work. I think I will order the dongle. Your integration has me leaning towards the Nuaire over the comparable Vent Axia systems at the moment.

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Not got any good ideas yet but love this thread
I’ve gone for the Vent Axia. It supports a unpowered wired switch for boost setting so no wireless hacking needed.

I’ve been using the Sonoff Minir4m matter switch to turn the fan power on/off. I’d really.love to find a cheap comparable device or custom Firmware that has relay+ GPIO output for power Plus boost control.

This way can detect higher humidity using Tado or other sensor and using weather forcast calculate dew point to try proactively avoid condensation.