If any of you have missed IKEA has a “new” product called Vindriktning. It is a 2.5 PM air quality sensor (PM1006) with a color LED on the front to indicate the air quality with green, amber and red colors. [image] VINDRIKTNING Air quality sensor VINDRIKTNING Air quality sensor Do you wan…

[image] Warter: Could you please share the wiring and the config? I used a Wemos Mini DHT22 Shield, a Wemos Dq Mini and male dupont cables. GND from IKEA goes to DHT22’s GND the pin next to the GND is not used by the shield so soldered GND and the next pin together. From that pin GND goes to …

Yes, the readings are in ug/m3 but I would say they’re pretty off. About three of four times too high, but sometimes just two times, so it is hard to convert them. Sometimes it also output “spikes” with even higher values.

Thank you. What is the output of the sensor? Is it a numeric value?

Yes, but I have also created a text sensor with values low/medium/high, according to this IKEA Vindriktning Air Quality Sensor - #34 by rindlerblabla .

Somebody made a custom pcb and used a connector on the main board. Looks also nice. Hackaday: IKEA Vindriktning PCB

The comparison which shows that the values are way too high. [20210814_125825] [Screenshot_20210814-125918_Home Assistant]

[image] rindlerblabla: The comparison which shows that the values are way too high. Can you try to increase the particle content of the air to trigger the IKEA ones to go amber or red? Just to see that the values match with the IKEA description. If the calculation is off then they will show …

Obviously it is not so easy to increase the particle content slowly in a controlled way. Lit some matches and managed to trigger the sensors, but the values are increasing fast and jump from low to high. But I must says I think they correlate well to the colors. Will evaluate a bit more.

[image] rindlerblabla: Obviously it is not so easy to increase the particle content slowly in a controlled way. Take an old piece of clothe, and shake it. Or use a deodorant spray…

The numbers seems to be off by one order of magnitude. Maybe it’s just a matter of adjusting the serial output of the sensor by dividing the values by ten? I have bought the device from IKEA yesterday and will mod it soon. But I don’t have a second sensor to compare the readings unfortunately.

IKEA Vindriktning Air Quality Sensor

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rindlerblabla August 14, 2021, 11:01am 66

The comparison which shows that the values are way too high.