Day 1

We have tested the CO/NO2 and dust sensors. The dust sensor works fine, but the CO/NO2 one measures 400 particles per million, and according to some sources it could cause headaches, dizzyness… However, other sources say that there’s no danger until 1000 particles per million. We still need a WiFi shield, to send the data to the webpage, but other than that, we’re OK.

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