Indoor Air Quality - CO2, Temperature, Humidity, PM 1, 2.5, 4, 10

prusaprinters

Indoor Air Quality No parts from IKEA are needed.SPS30 sensor is powered by 5V. 3.3V logic, 5V tolerant. 5V is present on the J4 header or (as I used, photos) on the unpopulated C16 part pad.On Laskakit Vindriktning v2.0 module is presented phototransistor connected to GPIO 4. I make a wire connection to GPIO 34 too, for use with ADC together with wifi.  The internal symbol insert is designed with a hole for its light input but is usable only with direct light as some type of funky hidden switch. Maybe inserting a piece of optical fiber into the hole will help for other purposes. Distance between the front face and module isn't minimal possible because the LEDs light creates hotspots then, not diffuse into the full symbols area.Instructions:Print all STLs, read the comments in the files section.0.4 nozzle diameter, 0.20 layer heightInsert displayInsert some soft spacerInsert Laskakit esp vindriktning module, top latches firstClick the USB side of the module down. Tight enough, screws possible, but not needed, lid part holds it.Insert Laskakit SCD41 modulePlace wires under side holdersInsert SPS30 sensor exactly as photosClick lid (and screws if you printed part with holes for it)Used modules:https://www.laskakit.cz/laskakit-esp-vindriktning-esp-32-i2c/https://www.laskakit.cz/laskakit-scd41-senzor-co2--teploty-a-vlhkosti-vzduchu/https://www.laskakit.cz/oled-displej-modry-128x32-0-91--i2c/https://www.laskakit.cz/--sup--stemma-qt--qwiic-jst-sh-4-pin-kabel-5cm/https://www.laskakit.cz/--sup--stemma-qt--qwiic-jst-sh-4-pin-kabel-10cm/https://sensirion.com/products/catalog/SPS30/ with wires