I am colourblind, i had to always use my wife to do test. No more.
Thanks to @PapaElf from which I heavily copied the idea. I just changed software and media.
I did not like on the phone. Made on a pc with a cheap VGA camera and a color grab software.
Tested against my wife 5 times with 3 tests (all, mg, Ca, all salifert) and all verified also with Hanna checker. All cool for me. Will not have to bother my wife for that again.
Next is a 3D printed stand nicer than that hotglued foam.
If u colourblind and u want do your own test, go for it.
Thanks to @PapaElf from which I heavily copied the idea. I just changed software and media.
I did not like on the phone. Made on a pc with a cheap VGA camera and a color grab software.
Tested against my wife 5 times with 3 tests (all, mg, Ca, all salifert) and all verified also with Hanna checker. All cool for me. Will not have to bother my wife for that again.
Next is a 3D printed stand nicer than that hotglued foam.
If u colourblind and u want do your own test, go for it.