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| projects:internetofthings:pm10 [2019/07/09 14:52] – [PM10] scipio | projects:internetofthings:pm10 [2020/06/01 22:04] (current) – [luftaden] scipio |
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| * [[https://luftdaten.info/2018/04/25/integration-sensoren-fuer-laerm-und-no2/|rumore e biossido di azoto]] | * [[https://luftdaten.info/2018/04/25/integration-sensoren-fuer-laerm-und-no2/|rumore e biossido di azoto]] |
| * [[https://luftdaten.info/feinstaubsensor-bauen/|kit PM10 con istruzioni]] | * [[https://luftdaten.info/feinstaubsensor-bauen/|kit PM10 con istruzioni]] |
| | * [[https://sensor.community|sensor community]] |
| * Particulate Matter App | * Particulate Matter App |
| * [[https://play.google.com/store/apps/details?id=com.mrgames13.jimdo.feinstaubapp&hl=it|playstore]] | * [[https://play.google.com/store/apps/details?id=com.mrgames13.jimdo.feinstaubapp&hl=it|playstore]] |
| ===== opensensemap ===== | ===== opensensemap ===== |
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| * [[https://opensensemap.org/|home opensensmap]] | * [[https://opensensemap.org/|home opensensemap]] |
| * [[https://docs.opensensemap.org/|API]] | * [[https://docs.opensensemap.org/|API]] |
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| ===== sensori ===== | ===== sensori ===== |
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| * PM2.5 e PM10: [[https://it.aliexpress.com/item/32795231620.html|Nova SDS011]] | * PM2.5 e PM10: [[https://it.aliexpress.com/item/32795231620.html|Nova SDS011]] [[https://it.aliexpress.com/item/32724933436.html|Fyd SDS011]] [[https://www.zerozone.it/tecnologia-e-sicurezza/nova-pm-sds011-per-misurare-la-qualita-dellaria/13699|teoria]] |
| * ozono: CJMCU131/mq131 | * ozono: |
| | * [[http://myosuploads3.banggood.com/products/20190121/20190121013943mq131.pdf|MQ131]]: [[https://it.aliexpress.com/item/32792096137.htm|aliexpress 15€]] |
| | * CJMCU-131 MQ131: [[https://it.aliexpress.com/i/32961496884.html|aliexpress 35€]] [[http://files.banggood.com/2018/01/SKU659809_CJMCU-131.pdf|schema]] |
| | * temperatura e umidità: |
| | * [[https://it.aliexpress.com/item/1872664976.html|TODO]]: i2c oppure one wire ? |
| | * luminosità: |
| | * [[https://it.aliexpress.com/item/32819359778.html|TODO]]: analogico o one wire ? |
| | * pressione sonora: ??? |
| | |
| | ==== MQ131 ==== |
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| | [[https://github.com/ostaquet/Arduino-MQ131-driver/tree/master/datasheet|datasheet]] - [[https://github.com/ostaquet/Arduino-MQ131-driver|esempio utilizzo]] - [[http://wiring.org.co/learning/basics/airqualitymq135.html|wiring]] |
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| | * The MQ131 is a semiconductor gas sensor composed by a heater circuit and a sensor circuit. |
| | * Heater consumes at least **150 mA**. So, don't connect it directly on a pin of the Arduino. |
| | * Sensor MQ131 requires minimum **48h preheat** time before giving consistent results (also called "burn-in" time) |
| | * There are two different MQ131; a black bakelite sensor for **low concentration** of ozone and a metal sensor for **high concentration** of ozone. |
| | * This [[https://github.com/ostaquet/Arduino-MQ131-driver|driver]] is made to control the "naked" Winsen MQ131. The driver is able to pilot the low concentration version and the high concentration version. |
| | * **To measure the air quality (e.g. pollution)**, it's better to use the low concentration MQ131 because the high concentration is not accurate enough for low concentration. |
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