EZO Sensors - Integration and Calibration in NodeMCU

[jhojan]

Hi friends.
First I want to thank all the members of the LEDgardener forum. Thanks to the information I found in the forum, I managed to integrate and calibrate the EZO-ph and EZO-ec sensors in Tasmota 9.2.

I recommend that the integration of the EZO-ph and EZO-ec sensors be carried out in a NodeMCU v.2 device, I had problems with the integration using the ESP32.
They should also use Tasmota 9.2
The commands used for calibration are:
--------
pH:
Sensor78 Cal, mid, 7.00
Sensor78 Cal, low, 4.00
Sensor78 Cal, high, 10.00

Reference:
https://www.instructables.com/Atlas-Sci ... Procedure/

---------
EC:
Sensor78 Cal, dry
Sensor78 Cal, low, 12880
Sensor78 Cal, high, 80000

Reference:
https://www.instructables.com/Atlas-Sci ... Procedure/
-------------
I had the problem that when I calibrated one of the sensors the other was set to 0.00, so I recommend that the calibration be done separately from the other, that is, first connect only the EZO-pH sensor to the NodeMCU V.2 and calibrate, once calibrated disconnect it, then connect the EZO-ec and calibrate it, once calibrated both separately just connect the two sensors to work with them.
It is the way it turned out for me, I hope it helps you.

[stud]

i have 4 atlas sensors on 1 Mini D1 esp8266 working good since xmas and i calibrate the ph and ec with no issues :
https://tasmota.github.io/docs/EZO/

[morrisraybrooks]

Thanks so much for sharing this i have ben trying to get my hydro kit tuned id but have failed at the ec side

[stud]

Thanks so much for sharing this i have ben trying to get my hydro kit tuned id but have failed at the ec side

if it's the Hydro Kit from Atlas , works every time for me

when you have multiple EZOs on the same I2C bus you have to do Sensor78-2 Sensor78-3 and so on ... Sensor78 applies to the first device only , in your case EZO-PH
on my Hydro Kit from Atlas , the EC is the second Ezo Sensor

EC:
Sensor78-2 Cal, dry
Sensor78-2 Cal, low, 12880
Sensor78-2 Cal, high, 80000


https://tasmota.github.io/docs/EZO/#configuration