2 layers136 × 100 mm
ClimateSprinklerController
kbx81/ClimateSprinklerController
ESP32-based climate and sprinkler controller for use with ESPHome
194 parts56
2 layers69.9 × 69.9 mm
AirQualityPCB
curiouselectric/airQualitySensor2This is a PCB and design for an air quality sensor unit using the airrohr/luftdaten/sensor.community design
- Size
- 69.9 × 69.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 39
- Pads
- 131
- Tracks, vias
- 270, 3
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Jun 2020
- Updated
- 17 Aug 2026
Overview
AirQualityPCB is an open-source printed circuit board by curiouselectric, from the curiouselectric/airQualitySensor repository on GitHub. It is a 2-layer board of 69.9 × 69.9 mm with 21 parts on 39 nets, routed with 270 tracks and 3 vias.
It is built around the BME280 and DHT22. Its parts include 18 connectors, 1 capacitor, 1 resistor and 1 IC. It belongs with the sensors and measurement boards and the ESP8266 boards of this library.
Main components
2README
README.mdairQualitySensor
This is a PCB and design for an air quality sensor unit using the sensor.community design
This is a PCB design (in KiCAD) and laser cut enclosure plate design to make an air quality sensor node for inclusion in the sensor.community global open environmental data platform . I think the project is amazing and produced this design for a simplified, but robust DIY kit.
This is heavily based on these two open-source projects:
https://github.com/CivicLabsBelgium/influencair-pcb
https://github.com/Naesstrom/Airrohr-kit
The second link (by Erik Näsström) is a great design. I wanted to, very slightly, simplify this and produce a unit that does not need a 3d printer. I set about designing laser cut parts for this.
The PCB is very simple, but has been produced in the totally open-source PCB design package KiCAD.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100uf | REInnovationFootprint:C_Radial_D6.3_L11.2_P2.5 | C1 |
| 1 | 4k7 | REInnovationFootprint:TH_Resistor_1 | R1 |
| 1 | 5V | REInnovationFootprint:DC_Power_2_1 | J1 |
| 1 | 5V | REInnovationFootprint:SIL-2_screw_terminal | J2 |
| 1 | ADC_IN | REInnovationFootprint:PinSocket_1x12_P2.54mm_Vertical_Labelled | J3 |
| 1 | ADS1115_ADC | REInnovationFootprint:ADAFRUIT_ADS1115 | J4 |
| 1 | BME280 | REInnovationFootprint:SIL-4_large_pad_BME280 | J8 |
| 1 | DHT22 | REInnovationFootprint:SIL-4_large_pad_DHT22 | J12 |
| 1 | ESP_BO1 | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J14 |
| 1 | ESP_BO2 | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J15 |
| 1 | I2C_1 | REInnovationFootprint:SIL-4_Grove_Labelled | J9 |
| 1 | I2C_2 | REInnovationFootprint:SIL-4_Grove_Labelled | J10 |
| 1 | I2C_3 | REInnovationFootprint:SIL-4_Grove_Labelled | J11 |
| 1 | LOGO_LUFTDATEN | CuriousElectric3:sensorcommunity | J16 |
| 1 | LOGO_OSW | REInnovationFootprint:OSHW_logo_small_back | J6 |
| 1 | LOGO_TCEC | CuriousElectric3:2019_011_16_CuriousElectricCompany_Logo_Round_Logo_No_words_KiCAD_10mm_PCBLogo | J18 |
| 1 | LOGO_TCEC | CuriousElectric3:TCEC_Words_13mm | J7 |
| 1 | NODEMCU | REInnovationFootprint:NodeMCU_Amica_R2_FSILK | U1 |
| 1 | PCB | REInnovationFootprint:PCB_LuftDaten_70x70 | J5 |
| 1 | PWR | REInnovationFootprint:USB_Micro-B_MOLEX_47642-0001 | P1 |
| 1 | SDS011 | REInnovationFootprint:SIL-5_JST_5WAY_labelled | J13 |
Questions
How big is the AirQualityPCB PCB?
It measures 69.9 × 69.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AirQualityPCB use?
21 parts, built around the BME280 and DHT22. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the AirQualityPCB KiCad files?
From the curiouselectric/airQualitySensor repository on GitHub, at the commit this page was made from: the board is PCB/AirQualityPCB/AirQualityPCB.kicad_pcb and its schematic PCB/AirQualityPCB/AirQualityPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the AirQualityPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask curiouselectric before reusing the design.
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