I can't really help with the arsenic measurement, but I can help you create a Python program for your tests. Could you provide some details regarding the tests you want to perform ?
I looks like the access permissions had be set to private. I've change it to public. You should be able to download the file now. You can also access the repository here https://bitbucket.org/iorodeo/ph_meter_firmware
Hi Greg,
Thank you for your kind words about our work and for reaching out ! We will definitely take a look at the openhardware.science website, thanks. Your work sounds very cool, and we would love to chat further. We sent you a message on here so look for that and hopefully we can connect and chat soon !
Best,
Jo
