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air-quality-monitor's Introduction

air-quality-monitor (deprecated)

Constructed by Sensirion SCD30 and SPS30 sensors, Arduino Nano IoT and Raspberry Pi 4B. Used software is Mosquitto, Node-RED, InfluxDB and Grafana.

Grafana with data from sensors

Overview of system

I recommend using IOTstack for an easy setup of the Raspberry Pi and its software.

Overview of Node-RED

The output from the Arduino is in the following JSON format:

{
  "c": 478,
  "t": 24.02,
  "h": 38.39
}

Node-RED sets it to the following:

{
  "co2": 478,
  "temperature": 24.02,
  "humidity": 38.39
}

with a change node and the following code:

{
  "co2": msg.payload.c,
  "temperature": msg.payload.t,
  "humidity": msg.payload.h
}

Libraries used

SparkFun_SCD30_Arduino_Library

sps30 by paulvha

pubsubclient by knolleary

Adafruit_SleepyDog

air-quality-monitor's People

Stargazers

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Watchers

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Forkers

roufraphael freemanr7 albybinoy

air-quality-monitor's Issues

code not compiling

Hi.

I managed to edit most of the code to make it work but Im stuck with the following error

Compilation error: 'ERR_DATALENGTH' was not declared in this scope

o {
ret = sps30.GetValues(&val);
if (ret == ERR_DATALENGTH){
if (error_cnt++ > 3) {
return(false); //error during reading sps30 values
}
delay(1000);
}
else if(ret != ERR_OK) {
return(false); //error during reading sps30 values
}
} while (ret != ERR_OK);

massPM2 = val.MassPM2;
massPM10 = val.MassPM10 - val.MassPM2; //PM10 - PM2 to see all particles between 2.5 to 10 micrometer
return true;
}

Can you please help me as this is part of the code you uploaded?

Cheers

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