PMSensorInBox / Luftdaten.info / Hensel DK0400G

thingiverse

This is a project for a printable adapter that makes the Luftdaten.info particulate matter sensor fit into a Hensel DK0400G junction box. This junction box is quite attractive and IP66 certified, making it suitable for outdoor use. The initial idea of the insert came from Richard Körber's project: https://www.thingiverse.com/thing:2775946. The main difference is that I used a different box and relocated the temperature sensor outside the box to avoid a bug with excessive temperature readings. This adapter can be used with either the DHT22 or BME280 temperature sensor, but only one at a time. The project can be edited in FreeCAD, version 19 (see the repository of solids on GitHub: https://github.com/zdroyer/PMSensorInBox). Although the current version has been printed and successfully tested using PLA and PET with a Prusa MK3*, I realize that the model is not perfect. Please feel free to criticize, report any bugs, or make it nicer/fancier/better – all pull requests are welcome! BOM: 1 x PM Sensor SDS011 1 x Lolin NodeMCU ESP8266 V3 1 x DHT22 or BME280 (temperature and humidity sensor) 4 x Dupont connection cable (see http://luftdaten.info) 1 x Micro USB cable (power) 1 x USB power supply 1 x Hensel DK 0400 G junction box 9 x M3x10 cheese head screws 2 x M3x30 cheese head screws 5 x M3x10 countersunk head screws 1 x M3x10 plastic screw for BME280 or 1 x M3x8 cheese head screw for DHT22 The cable junction box used for the project: https://www.hensel-electric.de/en/produkte/index.php?IdProduct=12393. (There you can find also the simplified STEP files of this and other junction boxes) If you just want to print the insert, download only the AMF or 3MF file – the other files are useful only if you want to modify something.