Microcontroller-Based Nitrox Analyer

[cfelliot]

I came across this.

http://www.circuitcellar.com/library/print/0105/Smith174/index.htm

 

[Tom Winters]

So this guy writes a long detailed article on building a nitrox analyzer making note, among other things, "The Nitrox analyzer project serves as yet another example of the versatility of 8-bit microcontrollers and the usefulness of the C language for programming them." Uh, ok...
Then in his introductory paragraphs, he wrote " I only use my analyzer as a redundant check of a dive technician’s analyzer."
I'll tell you - some of the "dive technicians" that I've encountered pumping nitrox, I wouldn't let pump gas in my car, much less the gas that I depend on for life at 200'.
I'd let this article guy pump my tanks any time he wanted, and I bet the O2 percentage would be accurate to .1% or better.

 

[cfelliot]

I’d suspect that the “I only use my analyzer as a redundant check….” quote is a CYA to prevent a lawyer from bringing suit if someone built this and hurt themselves.

I found this article interesting in explaining how an analyzer works. I write C code for 8-bit and 16-bit micros for a living so it caught my eye!