Gravity EC Meter K=1
David.Andersson 2024-08-27 22:31:42 156 Views2 Replies Hi
I am a beginner on Arduino UNO R3 and would like some help.
I have tried to use both the PH and the EC meter and have the same problem with both meters.
The sensor are connected according the wiring diagram and to the Arduino analog input. I use the example code without any modifications, (https://github.com/DFRobot/DFRobot_EC/tree/master/example). I am not using a temp sensor.
But do not get any printout of the ec value, it is static 0.00. I can print the voltage on the analog input (~1,8v)
I have the same result with other analog inputs (A1,A2..)
Any ideas what can be the problem?
Thanks.
Hi!
At this point the ec probe was in the 12.88 calibration solution and the gave a 1,8v on the connector pins, but no ec. value on the serial monitor.
(The red and black cut wires was earlier used for external power supply).
I am also able to print out the raw ec value, I guess before calibration, and receives a uncalibrated EC value of 11,8 for the 12,88 solution.
What have I done wrong..? :-)
Thanks!
David.Andersson Would you be able to post a photo of the connection as well as a screenshot of the serial monitor so we can check if any tiny things have been missed?
This is a bit of an oddity, because as long as there is an analog voltage output, the example code for the EC sensor will convert it to an EC value.
Yeez_B 
