Ikea Vindriktning PM2.5 air quality sensor + ESP8266

Devices
,
1

Thanks to the work of github member “Hypfer”, it’s now possible to use the cheap IKEA PM2.5 sensors as a MQTT source. I set it up with my homey as follows:

  • Applied the hardware mod with a Wemos D1 Mini
  • Put the supplied sketch onto the D1.
  • Installed MQTT broker and MQTT client on Homey.
  • Set up MQTT on the D1
  • Create a virtual device on Homey (type: sensor, air quality) by using the Virtual Devices app
  • Add a flow to homey: "
    IF
    MQTT Client Trigger when a message is received on
    “/home/data/pm25/1”
    THEN
    PM2.5 (virtual sensor) Set the value of a virtual sensor measure_pm25 to “message recived via topic”

It will work like a charm :smile:

image
image1347×472 25.2 KB

And it’s pretty cheap for a smart sensor of this kind.

Find the github repository here:

5 Likes
2

Awesome find!

How often does the Vindriktning update PM readings?

3

A couple of times every minute.

4

Did you modify the .ino file or did you just uploaded it to the Wemos?

5

I didn’t modify anything, just uploaded it. Configuration is done through the web portal.

6

I have done al the steps as mentioned in the first post. Unfortunatly I don’t receive anything from the sensor. In the developer tools I see that it is pushing data to the pm25 sensor. But still nothing is received…

image
image904×1028 127 KB

image
image1360×258 39.9 KB

7

I’m fairly sure your sensor data isn’t being published to /home/data/pm25/1 but to esp8266-vindriktning-particle-sensor/VINDRIKTNING-XXXX/state

1 Like
9

That did the trick (first time MQTT is a little bit a search :frowning: ).

Now i’m receiving data: {“pm25”:9,“wifi”:{“ssid”:“ssid_name”,“ip”:“192.168.1.122”,“rssi”:-58}}

image
image1824×302 59.4 KB

1 Like