We are continuously updating our open hardware / open source air quality monitor kits and as a results have different versions of the built instructions. The version you are having is written on the PCBs. Please check with the table below and then click on the link to the built instruction that applies to your kit.
Additionally, you can download all source files for the monitors on this page. All builds are licensed under CC BY-SA 4.0.
In case you have questions or a problem during the assembly, the best and fastest way is to visit our forum.
Firmware Repository
The firmware for all models is available on the AirGradient Arduino GitHub. Please open issues there for bugs or feature requests.
DIY PRO / ONE Kits
| Version | Image of PCB / Files | Main Improvements / Changes | Link to Instructions | Arduino Sketch Name |
|---|---|---|---|---|
| 9.0 |  black or blue PCBKiCad files main PCB Gerber file main PCB KiCad files LED bar Gerber files LED bar Enclosure STLClip-On Stand STL | Complete new design. ESP32-C3-Mini, RGB LED bar, hardware watchdog | build instructions | OneOpenAir.ino |
| 4.2 |  black or green PCBGerber filesKiCad files Enclosure STLClip-On Stand STL | Improved tracing / ground plane, removed D1 shield, change in button connection, switch to cross over cable for PMS | standard version / presoldered version | DiyProIndoorV4_2.ino |
| 3.7 |  black or green PCBGerber files Enclosure STLClip-On Stand STL | Push button for configuration, rounded corners | standard version / presoldered version | Compatible with DiyProIndoorV3_3.ino but no push button functionality |
| 3.3 |  black or green PCBGerber filesEnclosure STLClip-On Stand STL | standard version / presoldered version | DiyProIndoorV3_3.ino |
Open Air Outdoor Kits
| Version | Image of PCB / Files | Link to Instructions | Arduino Sketch Name |
|---|---|---|---|
| 1.3 PST Model |  KiCad files STL Files | build instructions | OneOpenAir.ino |
| 1.1 PP Model |  KiCad files STL Files | build instructions | OneOpenAir.ino |
| 0.6 |  Gerber files STL Files | standard version | DIY_OUTDOOR.ino (not maintained anymore) Last version in Release 2.4.15 |
DIY BASIC Kits
| Version | Image of PCB / Files | Main Improvements / Changes | Link to Instructions | Arduino Sketch Name |
|---|---|---|---|---|
| 4.0 |  Gerber files STL Files | Switched to shorter cross-over cable for PM. Made T/RH sensor slot compatible with AG module | standard version | BASIC.ino |
| 3.0 |  Gerber files STL Files | Changed S8 orientation, added holes for zip ties | standard version | BASIC.ino |
| 2.4 |  Gerber files STL Files | standard version | BASIC.ino |