Tindie

Plug and play. Using it in combination with a Orcon MVS-15RHBP. Installation pretty straightforward, but also noted on GitHub!

Arjan | Sept. 5, 2025

Fantastic project for DUCO/Orcon/Reno mechanical ventilators

For a few years I bypassed my Orcon controller board with a Z-wave 0-10v dimmer, directly connected to the motor. Although this worked well, I did not have tacho feedback, no sensor information and worst: the distance between attic and basement where my Home Assistant box is was too big, so I had to plug in a Z-wave plug. And yet occasionally the link was too weak. Since I did not fancy investing more in Z-Wave equipment (I'm into Zigbee, Thread and WiFi) I decided to look for other solutions.

Happy I found this project. It's a well designed solution based on ESP32 and for my Orcon it's literally a drop in replacement: remove the old controller board, connect the new board with 3 connectors and start integration with ESPHome/Home Assistant. I bought the pre-assembled but unprogrammed kit together with the programmer (it's soooooooo small, at first I thought they forgot to ship it) and build a basic firmware and quickly got it up and running. I also bought the combined T/H/CO2/NOx/VOC sensor (I love graphs and numbers, the more the better) and it's all purring now like a little kitten.

Note: with this Open Air Mini you can NOT use the Orcon RF remotes nor the humidity sensor of Orcon but who needs legacy remotes when you have this fancy setup.

I really need to give the developers kudos for their elegant and neat design. One word of advice: consider shipping the board in a little bit of bubble wrap and not just an ESD bag, but in my case the equipment was not abused by the mailman.

In short: I highly recommend this kit if it fits your MV and you want to have a great nerd-tool!

Oliver | Jan. 27, 2025

Amazing work

Great stuff. The tags work flawlessly in all of my airpurifiers (2S, Pro, 3H).
Keep up the good work.
Thank you.

Rob | Jan. 26, 2025

Wonderful product

This Open Air Mini is what I have been looking for since quite a while. Was unhappy with the way that my DucoBox Silent could be operated. The remote controls that I have in my home sometimes worked and quite often did not. Also the humidity sensor did not work as I felt it should.

Enter the Open Air Mini: you can make it do what the DucoBox should have been doing from the start. That is, when you have connected it to Home Assistant, and have set up some nice automations. You are pointed to the right place, and there is lots of forum talk on tweakers to be found.

Highly recommended!!

Klaas | Jan. 21, 2025

Best solution for smart Duco ventilation.

For Open AIR Valve DIY Kit

I was looking for a solution to optimize the ventilation performance in our bathroom. I ordered the Open AIR Mini in combination with 2 valves (DIY). 3D-printed all parts, assembly was super easy and fun. Connected everything to HomeAssistant, and now my ventilation-system might just be the smartest in the world. Or at least the smartest in my street. Thanks!

Klaas | Jan. 21, 2025

Best solution for smart Duco ventilation

I was looking for a solution to optimize the ventilation performance in our bathroom. I highly recommend the Open AIR Mini. Installation was super easy. Now I can control the ventilation unit with HomeAssistant.

Danilo | Nov. 11, 2024

Highly recommend!

The PCB is of very quality and so are the components on it. It was exactly as advertised and 100% plug and play. I would highly recommend this product for anyone looking to smartify their existing ventilation system :)

Rogier | Oct. 26, 2024

Great product! If you have a Duco ventilation box - buy it.

For Xiaomi Air purifier 2S/3H/PRO MOD (NO NFC MOD)

Currently the Duco box is equipped with two valves and the mini. Absolutely love it. It’s so easy to manage through Home Assistant and integrate with for example light switches in toilets. And yes - that connection can be life saving 😬😁

Liudmyla | Oct. 25, 2024

Great product and easy to follow installation guide

Seems to work exactly as described. Straightforward installation method - easy to follow blogpost. No more excessive filter waste and no more vendor lock in for filtering elements.

Sander | Oct. 20, 2024

Perfect

Using product in my current Duco ventilation box. Easy setup, well documented. I chose for pre programmed and it shipped quicker than expected. Works like a charm!

Piet | Sept. 9, 2024

Perfect solution, rock-solid operation

I am very happy I bought the Open AIR Mini! Installing was literally just a swap with the original (Orcon) board. It took me an hour or so to program the board and configure it properly, mainly due to scattered documentation, but once it was running I could integrate with Home Assistant with ease. Highly recommended!

Florian | July 18, 2024

Just perfect

NFC Stickers arrived today and they work perfectly fine, thanks for them! I will buy them in the future again!

David | May 26, 2024

Works perfect!

Very easy to install on my Orcon air vent. Only thing that was a bit unclear were the Home assistant instructions, but figured it out in the end.

Thank you so much!

Peter | May 17, 2024

A great piece of engineering

When our mechanical ventilation system was due for replacement I was on the lookout for something that would give me full control over the fan speed of the new system. Compared to the Shelly 2.5 I was using on the previous system, the Open AIR is so much better! It gives full control over the fan speed, and because it's based on ESPHome, it's not dependent on the cloud and has great integration with and community support from Home Assistant. The installation is well documented.

The only (small) issue I encountered is that it won't let me connect to a hidden Wi-Fi network from the pre-programmed software. But that was easily solved by unhiding the network SSID.

Alexander | April 13, 2024

Very nice product that installs easily

Exactly what I've been looking for, for a long long time.

Quick delivery, easy installation.
No complaints very happy :-D

Sjoerd | April 3, 2024

Works well. Exacty as described. Great value

Exactly as described. Works very well. Great stuff.

Installation is easy when you use common sense

S>

Richard | Feb. 16, 2024

Open AIR mini & Open AIR Valve

A few weeks after the delivery and installation its time to give a review. The Open AIR mini & Open AIR Valves delivered pretty fast, good packaging and no troubles at all with the installation. Only follow the guide on Github and had everything pre installed. Now running for a few weeks with Home Assistant automations with no problems at all.

Flamingo lets the people know that the original Duco sensors/remotes are not supported. As a side note, its possible to power up the Duco print and only use the Duco network to use the original Duco sensors/remotes.

All in all I cannot think of any thing negative....

Keep up the great work!

Tim | Feb. 14, 2024

Niche product

I ordered these RFID stickers because it’s possible to obtain unbranded HEPA filters for the Xiaomi air purifiers (which are essential to life here in Thailand when the farmers are burning stubble in the fields). Shipping took a month (as predicted by the seller, no tracking, and I’d just begun to wonder where they’d got to) but on Valentine’s Day a mysterious small black envelope arrived. So mysterious that my wife insisted on standing over me as I opened it—I think she thought I might have a mystery lover, it was that kind of envelope 😂 Anyway, I didn’t get into trouble and my cheaper HEPA filters are now no longer rejected by Mi! My thanks and gratitude to TheFlamingo, who I hope keeps printing these.

Boudewijn | Jan. 27, 2024

Excellent valves

Received the valves today and was able to install in less than 45 minutes. The most time was needed to place the sensors on the valves. Took a while to figure out we had to remove the housing. The notches on the valve for the sensors are a bit low which made it difficult to keep the sensor in the right position. Once the sensors were installed, the whole system is plug-and-play.
As with the Open Air Mini, the password for the access point is “ChangeMe123!” (which took some googling to find). In the end, after figuring this out, everything installed easy. Connecting to the wifi is simple and Home Assistant discovers the valves instantly.
Only thing I needed to do was to deactivate the sensor-entities that were made by the Open Air Mini and I had my automations running in under 5 minutes.

Ronald | Jan. 26, 2024

Perfect!

Perfect example that opensource works better than the original product. It is well designed and manufactured

Pim | Jan. 24, 2024

A great piece of hard- and software.

I have a standard Ducobox Silent and I wanted the Duco integrate in my smart home (Home Assistant) with several automations. I was very happy to find this solution because Duco it self does not support this. The instructions on the website were very clear and complete and made the installation piece of cake. I ordered the pre-programmed version with humidity and CO2 sensors. I also have a humidity sensor of Duco and this sensor is also integrated in Home Assistant now. The support (which I needed because of the Duco humidity sensor) was super. A great piece of hard- and software.

Christophe | Jan. 20, 2024

My best order of the century

The open mini air is a professional electronic card with a fuse and an excellent quality of made, I m very happy to find this product in open hardware and open software. The HA integration is very easy after you find on the github the WiFi default password.

Thank you for your job!

Roland | Jan. 11, 2024

If you're looking for perfection, look no further.

I have never purchased such beautifully designed and produced hardware on Tindie before. Absolutely exceptional in it's class. Communication with The Flamingo and shipping were also very good.

Would I recommend this seller? More than 100% :).

Rein | Jan. 8, 2024

Happy Customer

Just a quick note that the NFC stickers have safely arrived in New Zealand in less than 3 weeks. The mail service had to battle the christmas period so I am very pleased with the delivery service. The NFC stickers work as advertised, well done saving the planet :) Thank you so much and greetings from summery New Zealand.

Boudewijn | Jan. 8, 2024

Works like a charm

I bought this product in order to be able to add my Duco fan to my home automation platform (Home Assistant). The product was well packaged and of good build quality. The instructions on the website for installation were very complete and easy to follow regaring the installation of the hardware. I only needed to google for the fallback hotspot password so I could connect to my WiFi. After that, Home Assistant had quickly found the device and setting up was easy. I now control the fan speed based on CO2 level and relative humidity. Next will be ordering the valves.

Marice | Jan. 6, 2024

Works great

Love this product. I made my home ventilation system controlable by Home Assistant and use automation to trigger the system.

Peter | Jan. 4, 2024

Amazing product

Great install and now full control over my ducobox inside of home assistant. Considerably cheaper and extremely more controllable than a default ducobox branded solution that I was looking at.

Highly recommend all of the ducobox components made by this creator if you want granular control over your MEV ducobox.

Peter | Jan. 4, 2024

Amazing way to gain home assistant control of your ducobox

Really happy to install this and gain control of my ducobox, an exceptionally well built product with clear instruction to swap out the controls.

Peter | Jan. 4, 2024

Amazing DIY option

For Open AIR Valve DIY Kit

I needed another two valves, but the fully assembled were sold out, so bought two DIY kits. Super happy and managed to leverage my 3D printer to complete these over a couple of days. Highly recommended kit if you want to print and DIY.

Herbert | Dec. 14, 2023

Kleppen met sensoren en Open air systeem voor duco silent

Goede kwaliteit van de materialen, snel geleverd en makkelijk te integreren in Home Assistant. Automatiseringen worden door alle mogelijkheden wel wat complex. Maar dat is juist wat iedereen wil. Communicatie met verkoper is ook super.

Super blij met de producten :)

Olegs | Oct. 17, 2023

Open AIR Mini v1.3.0

Excellent product and easy to install !!! Keep doing it and improving this product.

Product: Duco Box Silent

Christoph | Sept. 30, 2023

Perfect

Quick delivery to Germany, arrived in just 4 days. Works perfectly on my Xiaomi Air Purifier 4. It's a simple and effective solution.

Adrian | Sept. 3, 2023

Works perfectly

The stickers arrived pretty fast, no hassle with customs as it was an in-europe shipping.
Super easy to use, just remove the old sticker, place the new one and it's good to work (just remember to press the reset filter button on the air purifier)

Pascal | Aug. 27, 2023

Works like a charm