SPS30 does not work

Pink · March 6, 2023, 6:31pm

Hello. I am trying to set up an Air Quality Monitoring System with an NodeEMCU v3 - esp8266, an BME280 and a Sensirion SPS30.
I flashed the firmware 0.3.2 with the airRohr-Flashing Tool onto the Node and connectet it with my WiFi. After that i connected the BME280 like it is shown in the instructions from the sensor.community webpage.
I also connected the Sensirion SPS30 with the help of a JST ZH connector from “berrybase” like the way the SDS011 is connected, but i didn’t connect the Pin 4 “SEL” from the SPS30 sensor. My Powersupply is the official Rasperry Pi Poweradapter.

After plugging in the system i can see the BME280 is working fine, but i don’t get any data from the SPS30. In the errorbox in the software it shows:
“WiFi_0/-66/0”
“OTA Return_200”
“Sensirion SPS30_0”

I didn’t find any solution in the forum. Could someone help me with my problem? Maybe I connected something wrong? Unfortunately I don’t know what to do with the error “0”.

pjg · March 7, 2023, 8:02am

SPS30 is I2C not UART.
Please check here:

github.com

opendata-stuttgart/sensors-software/blob/master/airrohr-firmware/Readme.md

# airRohr Sensor Firmware for SPS30, SDS011, DHT22, BMP180, BMP/E 280 and many more

## Features:
* many environmental and air quality sensors can be used concurrently
* Integration in Sensor.Community (formerly Luftdaten.Info)
* Configuration via HTTP in local WiFi or with a Sensor-as Access-Point
* Support for OLED- and LCD-Displays (SSD1306, SH1106 and LCD1602, LCD2004)
* Wide selection of API integrations for measurement reporting
* Ability to print measurements as CSV via USB-serial
* Used with ESP8266 (NodeMCU v2/v3 and compatible) and ESP32 (experimental)

## Contributing

Please refer to [Contributing README](./Contributing.md) for details.

## WiFi configuration
For German Version see: [Konfiguration der Sensoren](https://github.com/opendata-stuttgart/meta/wiki/Konfiguration-der-Sensoren)

If a (previously) configured WiFi is not reachable within 20 seconds after power-on,
the firmware flips itself into AP mode and creates a WiFi network in the form `airRohr-\[Sensor-ID\]`.

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fredvduin · March 7, 2023, 8:28am

I use IIC and connect Pin4 to GND
SPS30

Pink · March 7, 2023, 10:21am

Many many thanks! Now I get values from the SPS30 sensor. I guess I still need to connect the BME280 via pins D3 and D4 as well, as instructed, or is there a way without soldering the wires together?

pjg · March 7, 2023, 1:53pm

There is no way. You have to solder or imagine a system with further pins on a small board.

fredvduin · March 7, 2023, 2:54pm

Agree, best is solder, for temporary or when I can not solder, I use sometimes “Heat Shrink Butt Crimp/Ali”

Pink · March 13, 2023, 9:35am

Ok, then I’ll solder it together, it just has to work and doesn’t have to win a beauty contest. Thank you very much for the quick help!