pH is always zero

[downerhouse]

Hi
I have now installed and reinstalled reef-pi on my V3 Robotank controller at least 6 times, and I cannot get a reading from the pH probe. I have checked I2C (see attached), and checked the setup (which I assumed should work out of the box anyway), drivers etc. No matter what I do, I cannot get a value.

I've got 2 x ds18b20 temperature sensors attached and they are working fine, so parts of the configuration seem ok.

Any help appreciated. Thanks.

 

[downerhouse]

So either everyone else is not using a pH probe with Reef pi, or there is something wrong with the latest install files. Any insight appreciated.

 

[Alpine_Weiss]

Did you reinstall only the reef pi or the complete OS ? On mine I had to do a full reinstall. Rob made me test with a 10k Ohm resistance instead of the probe to see if my probe was defective.

 

[downerhouse]

Did you reinstall only the reef pi or the complete OS ? On mine I had to do a full reinstall. Rob made me test with a 10k Ohm resistance instead of the probe to see if my probe was defective.

Complete re-install each time. I can only assume that when the script updates the OS to the latest version, it breaks something. I may hack the script a bit to avoid this update and see what happens.

There is nothing wrong with the probe - I have 2 - one is brand new and works just fine on other tools I have. They also work fine on the regular RoboTank software.

 

[Rob F]

Sorry I missed you here, I think we resolved this via email and the issue was a bug in reef-pi, I think you are all set now?