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CO2 Measurement
Field 1 Chart IFrame
<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/422728/charts/1?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=5000&title=CO2+CCS811&type=line&yaxis=ppm"></iframe>
Field 2 Chart IFrame
<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/422728/charts/2?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=5000&title=tVOC+CCS811&type=line"></iframe>
Field 3 Chart IFrame
<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/422728/charts/3?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=5000&title=Temperature+HDC1080&type=line&yaxis=C"></iframe>
Field 4 Chart IFrame
<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/422728/charts/4?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=5000&title=Temperature+BMP280&type=line&yaxis=C"></iframe>
Field 5 Chart IFrame
<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/422728/charts/5?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=5000&title=Humidity+HDC1080&type=line&yaxis=%25"></iframe>
Field 6 Chart IFrame
<iframe width="450" height="260" style="border: 1px solid #cccccc;" src="https://thingspeak.com/channels/422728/charts/6?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=5000&title=Barometric+pressure+BMP280&type=line&yaxis=PA"></iframe>
What causes the increasement of co2 in the evening?
Do you know the reason?
greets