Sensor.community KIT (SDS011/BME280), English language, harness cable edition

Since Apr 2024 Sensor Community firmware requires password to configuration access point. When You are asked about password when connecting to airRohr-XXXXX WiFi try airrohrcfg

Dedicated connectors and cables

Original kit used regular F-F jumper wires to connect sensors to NodeMCU. Simple and effective, but it had some drawbacks. Since the cables had 1 pin with no polarity markings, you had to check exactly which NodeMCU pin you are connecting to the sensor pins. And You had to pay attention not to disconnect cables during case assembly.

We have solution for these problems - dedicated connectors. We have chosen XH connectors (since SDS011 has one already). They have mechanical protection from wrong connection. To the SHT31 we have soldered XH connector and ordered special NodeMCU version with XH connectors instead of usual goldpins.

We have also created dedicated cable harness with plugs matching connectors on NodeMCU and sensors. The good news is that each plug is different, so it matches exactly one socket on NodeMCU/sensors. That makes proper connecting a breeze!

Specification:

This is a complete set to build the Sensor.community air-quality sensor (aka Luftaden.info sensor):

• Electronic parts
  • 1 x SDS011 particulate matter sensor
  • 1 x nodeMCU v3 LoLin ESP-12E but already programmed with luftdaten firmware (English fw but language can be changed in menu)
  • 1 x BME humidity/temperature/pressure sensor - with soldered XH connector to SC harness cable
  • 1 set of custom harness cable for Sensor Community
  • 1 x flat microUSB cable, 2.75m long
  • 1 x 5V, 1A USB power supply
• Mechanical parts
  • 20 cm of clear 6mm hose (like this one, but longer)
  • 2 x of hydraulic elbows (currently they are in white not grey)
  • 2 x cable tie 100mm
  • 2 x cable tie 432mm

Links:

• Assembly instructions Assembly is identical like for kit with SHT31