Datenblätter Spezifikationen

[AM2302] (https://github.com/opendata-stuttgart/meta/blob/master/files/AM2302.pdf) (entspricht DHT22)
[DHT22] (https://github.com/opendata-stuttgart/meta/blob/master/files/DHT22.pdf)
[PPD42NS] (https://github.com/opendata-stuttgart/meta/blob/master/files/PPD42NS.pdf) The spec sheet curve parameters seems to stem from http://www.howmuchsnow.com/arduino/airquality/grovedust/ ("I digitized the Spec. Sheet Characteristic Chart and fit a cubic polynomial to it. I got the following equation: y = 1.1x^3 - 3.8x^2 + 520x + 0.62") In [Field calibrations of a low-cost aerosol sensor (Holstius)]http://www.atmos-meas-tech-discuss.net/7/605/2014/amtd-7-605-2014.pdf) Fig. 4 shows a comparison of lowpulseoccupancy (only range 0-4%) with PM2.5 of a reference measurement, which is more like P2=5+(330*lowpulseoccupancyP2) with P2 unit [µg*m^-3]
[SDS011] (https://github.com/opendata-stuttgart/meta/blob/master/files/SDS011-V1.3.pdf)

weitere Infos zu den Sensoren

[Analyse Aufbau PPD42] (/opendata-stuttgart/meta/blob/master/files/ShinyeiPPD42NS_Deconstruction_TracyAllen.pdf)