Where to buy - Myrgued/sensor-instructions GitHub Wiki

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If you donated to one of the sensors on BetterPlace.de, please contact us or visit us at one of our meetings at shackspace every 2nd Tuesday of the month. For all others we recommend the links below to order all electronic parts via AliExpress.

Hardware you need to get started:

Power supply USB, 5V (please, do not choose the cheapest one)

Dupont 4-wire cables, female-female, min. 20 cm as connectors NodeMCU to sensor

NodeMCU (ESP8266, CPU / Wi-Fi)
Price ca. 2,60 Euro (as at 06.04.2016):
Price ca. 3,00 Euro (as at 06.04.2016):
Price ca. 3,00 Euro (as at 17.02.2016):
http://de.aliexpress.com/wholesale?site=deu&SortType=price_asc&shipCountry=de&SearchText=nodemcu+v3&CatId=400103

SDS011 (recommended PM sensor, more expensive than PPD42NS)
Price ca. 23 Euro (as at 06.04.2016):
Price ca. 25 Euro (as at 17.02.2016):
http://de.aliexpress.com/wholesale?site=deu&SortType=price_asc&shipCountry=de&SearchText=sds011&CatId=523

PPD42NS (previous PM sensor)
Price ca. 9,70 Euro (as at 25.07.2016):
Price ca. 9,50 Euro (as at 06.04.2016):
Price ca. 11 Euro (as at 17.02.2016):
http://de.aliexpress.com/wholesale?site=deu&SortType=price_asc&shipCountry=de&SearchText=ppd42ns&CatId=523

DHT22 / AM2302 (temperature / humidity, optionally)
Price ca. 2,30 Euro (as at 06.04.2016):
Price ca. 2,30 Euro (as at 17.02.2016):
http://de.aliexpress.com/wholesale?site=deu&SortType=price_asc&shipCountry=de&SearchText=dht22&CatId=523

Tiny wires female-female, ca. 20 cm or as you prefer
http://de.aliexpress.com/item/Free-Shipping-80pcs-dupont-cable-jumper-wire-dupont-line-female-to-female-dupont-line-20cm-1P/701588771.html

USB wires, e.g.: flat, 2 m, micro-USB
http://de.aliexpress.com/wholesale?catId=0&initiative_id=SB_20160828005508&SearchText=micro+usb+kabel+flach

Plug-in power supply USB: 5V power supply for the NodeMCU. Please don't choose the cheapest model, because rectifier etc. might interfere with the circuit.
http://de.aliexpress.com/wholesale?catId=0&initiative_id=SB_20160828005634&SearchText=steckernetzteil+usb

Cable ties for fastening the boards to the tubes and some hot glue or tape.