Wireless Dust Sensor SDS011 and DHT22(AM2302) with Wemos OLED enclosure

Republished from my thingiverse: https://www.thingiverse.com/thing:3342804

Links to the parts contain Banggood's affilate metadata.

Intro

I needed a PM2.5/PM10 sensor during this winter season. I wanted to monitor more than one room and did not want to buy multiple expensive devices.

This is an eclosure designed to fit 3 devices:

1. an acurate dust sensor
2. an Wemos ESP8266-based board with an OLED display
3. a digital humidity and temperature sensor

Parts

• Wemos NodeMCU with an OLED display
  The brain of this project. Provides processing, connectivity and instant data feed on the display.
  Buy Wemos with a display

• Nova SDS011
  The main sensor used to measure PM2.5 and PM10
  Buy SDS011

• DHT22 (AM2302)
  Additional sensor to measure humidity and temperature
  Buy DHT22

• Screws:
  4x longer M3x20 screws to hold the main case plates together
  4x shorter M3x8 screws to mount the Wemos board

Assembly

1. Print the parts (I used 2 colors per part with ColorPrint)
2. Connect SDS011 to Wemos board
3. Connect DHT22 to Wemos board
4. Use 4x shorter screws to mount the Wemos board to the front plate
5. Use the longer boards to keep front and back plate together
6. Flash Wemos board with ESPEasy
7. Configure devices in ESPeasy

Summary

When fully assembled, it should be compete with the retail products as:

• Xiaomi PM2.5 detector

• SNDWAY SW-825 Digital Air Quality Monitor

Please feel free to propose improvements

https://github.com/wojked/dust-sensor