Place the PCB back onto the front plate of the air quality monitor. Secure it with the three screws.

Plug the PM1006 and fan connectors back into the PCB.

Connect a STEMMA QT / Qwiic JST SH 4-Pin Cable to the STEMMA QT connector on the QT Py.

Connect the other end of the STEMMA QT cable to the STEMMA QT connector on the BME280 breakout.

Place the BME280 in the enclosure and push it flush against the enclosure's perforations.

Ensure that its placement doesn't block the bottom of the PM1006 fan and that the BME280 will receive sufficient airflow from outside the enclosure.

Add a small dot of hot glue to the top of the inside of the case, above the PM1006 sensor. Press the QT Py into the hot glue to secure it with the USB port facing out. This way if you need to adjust the code, you can still access the USB port.

If you ever want to remove the QT Py, you can use some isopropyl alcohol to remove the hot glue.

Close up the case with the four screws.

Now you're ready to start logging the readings from the Vindriktning to Adafruit IO!