2 layers103 × 30.5 mm
2 layers33 × 45.7 mm
Nitrox Board
amperserwis/DIYNitroxSensorThis repository will mostly contain arduino code files and KiCAD files.
- Size
- 33 × 45.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 32
- Pads
- 48
- Tracks, vias
- 46, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 28 Mar 2025
- Updated
- 28 Mar 2025
Overview
Nitrox Board is an open-source printed circuit board by amperserwis, from the amperserwis/DIYNitroxSensor repository on GitHub. It is a 2-layer board of 33 × 45.7 mm with 9 parts on 32 nets, routed with 46 tracks and 0 vias.
README
README.mdDIYNitroxSensor
Attempt to create an easy to assemble Kitable Nitrox Sensor for analyzing Scuba tank oxygen content Mostly for remote dive locations that may lack financial resources This project borrows heavily on https://www.divetech.com/post/the-20-nitrox-analyzer, but adds a number of improvements including rechargeable battery circuit, custom PCB, and stronger bolt-together case. The goal is to have a project that is almost kitable for remote dive locations.
This repository will mostly contain arduino code files and KiCAD files.
The main project page can be found on instructables: https://www.instructables.com/Yet-Another-DIY-Nitrox-Sensor/
The 3D printer files can be found on Thingiverse: https://www.thingiverse.com/thing:6300317
I have been a consumer of many of these amazing DIY sites for so many years and have never tried to put together a great tutorial myself, so here goes nothing...
This is a diagram of the basic connections for the arduino pro mini below:
Here is a picture of the specialized PCB for the project designed on KiCAD. File included in the project.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | ~ | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | BAT1, Button1, Sensor1, SWTCH1 |
| 2 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Vertical | ProMini1, ProMini2 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | ADS1115 |
| 1 | ~ | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | DISP1 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | i2c1 |
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Questions
How big is the Nitrox Board PCB?
It measures 33 × 45.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nitrox Board use?
9 parts. 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 Nitrox Board KiCad files?
From the amperserwis/DIYNitroxSensor repository on GitHub, at the commit this page was made from: the board is Nitrox_Board.kicad_pcb and its schematic Nitrox_Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nitrox Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask amperserwis before reusing the design.