Parts

CityOS does not sell these devices, but you have a few options on how you can get one or few:

You can build it yourself using these tutorials,
You can come to our free workshops organized each time 5 or more people contact us with ready parts for their stations,
Pay one of the many students we trained to build you one.

Parts for the full version cost about 50 EUR depending on where you order them, and we recommend paying students about 20 EUR per station if you want to go that way.

That is "Data Giver" version, but you can also build "Data Taker" version with no sensors. It is just a lamp that gets data from the server from your neighbor's station. It will still light up like a full setup version to notify you of pollution but you will not be able to measure your indoor data or to contribute data for the movement.

This section lists the parts you will need to successfully build your own CityOS Air device (Boxy).

1. Breadboard and compact version

No	Description	Links	Quantity	Price ($)
1	ESP8266 NodeMCU	https://ebay.to/2T6xz6V	1	3.58
2	PMSA003 - Digital Laser Dust Sensor (PM2.5 and PM10) Breadboard Version Compact Version Also you can use PMS1003 PM2.5 Dust Sensor Breadboard Version Compact Version	http://bit.ly/2t4gGiu http://bit.ly/308Uu2O ($13.40)	1	25.99
3	Prototyping Board Breadboard Version	https://ebay.to/36xHnL0	1	1.99
4	Prototyping Breadboard Compact Version	https://ebay.to/2ZVEAJ5	1	1.19
5	BME280 Temperature, Humidity and Pressure Sensor Breadboard Version Compact Version Also you can use DHT22 - Digital Temperature and Humidity Sensor Breadboard Version Compact Version	https://ebay.to/2N3EAkQ https://ebay.to/2Fqz3k2 ($2.86)	1	3.59
6	Micro USB 2.0 Cable, 5V 2.4A	http://bit.ly/2ZXJ3e8 Select: White Select: 1M	1	4.01
7	EU 5V, 2A USB Wall Charge	https://ebay.to/309fWVa Select: 5V 2A EU White	1	1.71
8	Male to Male Jumper Cable	https://ebay.to/2QxeBEP 1 pack - 65 pcs	1	1.48
9	Solid Core Hookup Wire	http://bit.ly/2SXeGDf		13.85
10	LED Ring Breadboard Version Compact Version Also you can use RGB LED Breadboard Version Compact Version	https://ebay.to/39LCaBg	1	1.91
11	Resistors	https://ebay.to/2Qvn0s1 Select Value: 470Ω Select Amount: 25 Note1: You will need one resistor. Note2: If you decide to use RGB LED instead LED RING you will need one 100Ω resistor. https://ebay.to/2Qvn0s1 Select Value: 100Ω Select Amount: 25 Note3: If you decide to use DHT22 instead BME280 you may need one 10kΩ resistor. https://ebay.to/2Qvn0s1 Select Value: 10kΩ Select Amount: 25		1.99
12	Male Crimp Pins	https://ebay.to/2QUFFfT Select: 10 x Male Pins Note: You will need 4 male pins.	1	2.59
13	Capacitor	https://ebay.to/2FthEr2 Select: 16V and 1000mF Note: You will need one capacitor.	1	2.59
14	LEXAN THERMOCLEAR sheet	You can buy it at your local DIY store.		3.00
15	Acrylic plastic sheet	You can buy it at your local DIY store.		2.00

2. PCB version

No	Description	Links	Quantity	Price ($)
1	ESP8266 NodeMCU	https://ebay.to/2T6xz6V	1	3.58
2	PM2.5 Dust Sensor PMSA003	http://bit.ly/2t4gGiu	1	25.99
3	BME280 Temperature, Humidity and Pressure Sensor	https://ebay.to/2N3EAkQ	1	3.59
4	Micro USB 2.0 Cable, 5V 2.4A	http://bit.ly/2ZXJ3e8 Select: White Select: 1M	1	4.01
5	RGB LED Ring	https://ebay.to/39LCaBg	1	1.91
6	Solid Core Hookup Wire	http://bit.ly/2SXeGDf		13.85
7	Capacitor	https://ebay.to/2FthEr2 Select Voltage: 16V Select Capacitance: 680uF 8x12mm Note: You will need one capacitor.	1	2.39
8	PCB		1
9	10PCS 40Pin 2.54mm Single Row Straight Female Pin Header Strip PBC	https://ebay.to/309bIgu	1	1.27
10	10Pcs KF235 5.0mm Pitch Straight PCB Board Screwless Spring Terminal	http://bit.ly/37RKxcB Select: 4P	1	8.95
11	3 mm PLA filament (White)	https://ebay.to/2QYLRni Select Material: PLA Select Size: 3mm Select Color: White	1	34.42

Now get to know your tools!

Read about it below so you can easily follow the rest of the tutorials later on.