Hi,

I calibrate my probe every three months. The deviation that I see is just minimal. So for that, I do it on my PC.

I think the DFRobot ROM needs the serial console for calibration. I was thinking of using Serial <>MQTT but not having the passion for making it happen.

BR

Hi,

I use Arduino and MQTT. It works fine for me.


BR

Hi, Thanks, jaysal. It took a while, and not I got it working. EC and PH probe with one ESP32. The problem occurred that the readings of the two probes interference with each other. So I had two analog signal isolators. But one was a defect. With the Analog Signal Isolator and attached to the PH pro...

Hello, I was searching for a sketch for DFRobot PN and EC probe to use them on one ESP32 and ADC. As I could not find a sketch, I start again (I lost the previous sketch as my PC crashed). So far, I have combined the PH and EC sketches into one, and initial testing looks ok. Where I am not sure is t...

Hi, PH probe works well. I expand the recalibration from 4 weeks to 8 weeks. In very raw cases the PH value was going crazy (14 pHs). After reset of the ESP, everything was fine again. Just in case I ordered isolating circuit, but not been installed yet. The key difference is public support. I would...

My DFRobot EC Probe will come soon. Let's see how long the durability is.

By the way, I found a cheaper solution to make an EC probe

https://hackaday.io/project/7008-fly-wa ... er-arduino

HI,

If you make DWC they may be interesting for you:

https://www.ionselectiveelectrode.com/p ... alyzer-kit


Greetings

Looks great!

They have a guide on the webpage. If you have a look at it, look at the EC probe It is from ATLAS.

https://www.dfrobot.com/blog-733.html


Greetings

Hi,

I ordered an EC probe too, but there is a difference. PH probe SEN0169 is industrial standard and EC not. There are no EC probes with industrial standard from DFRobot available.


BR

Hi,

I try to create a picture for it. My wiring is shown there.

BR