Please have a look to already used as prototype Nitrox Open Source analyser and our dream: Trimix Open Source analyser
This is our first target : finalize our PCB on wich people can solder all parts for the Nitrox Analyser. This PCB must be as small as possible and well designed. The PCB will be published then everybody could hack it and make it with local solutions (for example use a profesionnal online service like https://aisler.net/ or make a self PCB following theses instructions https://www.instructables.com/id/How-to-Print-PCB/ ...).
Cost estimation : xxxx €
The most basic solution is to (re)use a 9v power battery ... but it could be nice if we can use
The main goal of gasblender is to purpose some solutions and to know that local solutions will be (probabbly) different, that is a good challenge. That the reason why our device need only 5v as power source and has a single Molex Connector. If you want to plug some other type of power source you just have to make a new cable from Molex to whatyouwant and that's all.
Here is two examples of power source we can use thanks to the same "9v" connector :
Cost estimation : xxxx €
Next step is to hire a good designer to make a beautifull and small case with FreeCAD and publish it on our github and thingiverse.
Cost estimation : xxxx €
Trimix analyser needs some other things than Nitrox Analyser but we imagine that :
We need to hire a good designer to make a beautifull and bigger case than Nitrox analyser with FreeCAD and publish it on our github and thingiverse.
Cost estimation : xxxx €