Forum Members section DIY Ferduino controller Problems with pH EZO stamp

Problems with pH EZO stamp  [SOLVED]

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Post Number:#1 Post Wed Oct 17, 2018 8:40 pm
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Buenas noches,

Good night,

I calibrated the Atlas EZO ph probe according to the instructions on the Atlas website, using its calibration test code.
I have calibrated it for the 3 points.
Before loading the Ferduino code, I have uncommented the lines:
#define STAMPS_EZO
#define USE_STAMP_FOR_TANK_PH
After loading the code, the TFT screen shows a value of 0 in the ph.
I read in several posts that you do not have to change the code if you just put a stamp.
In another post I read that it had to be calibrated also with the test code of the stamps of Fernando's page.
It is true?
The calibration orders of Atlas are used for the fernando test code?
Could you help me and tell me what to do?

Another thing, I have given the button to calibrate probes in the menu parameters and now I do not detect any temperature probe. Are they related?

Thanks and best regards
Last edited by Fernando Garcia on Wed Oct 17, 2018 8:46 pm, edited 1 time in total.
Reason: Don't use all letters in uppercase unless it's an abbreviation.

Post Number:#2 Post Wed Oct 17, 2018 8:57 pm
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Joined: Mon Mar 03, 2014 5:59 pm
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Hi!

Boa noite! :)

This problem should be related to temperature sensor since temperature is used for compensation.

The button in parameters screen just go back to home page as you can see here.

The calibration function was not implemented yet.

If you did the calibration using Atlas sample code is not needed calibrate it again using my test code.

To make sure that the problem is related to DS18B20 change this line:

Serial3.print(tempC);


To:

Serial3.print("25");


Then the pH stamp should work.

After fix the probe and change the code again.

Best regards.
Post your doubts on forum because it can help another user too. Just PM me for support if it's absolutely necessary.




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