Blynk server shown last saved value even module is disconnected

Solved
1

hi

I’m new on Blynk IoT cloud

I’m developing one project it will read soil moisture and update on Blynk server, every thing is working fine, but when I turn off my module, server is showing last saved value, how can I change the setting that when module is not ON or module is disconnected the server don’t show the value of sensor.

Is there any option ?

2

Yes, it is possible.
When you define/edit your datastreams, in the Advanced settings there is the “Invalidate Value” option.
It’s covered in the documentation here:

https://docs.blynk.io/en/blynk.console/templates/datastreams/datastreams-common-settings/invalidate-value

Pete.

5 Likes
3

It works :grinning: :grinning: :grinning: :grinning: :grinning:

thank you very nuch.

4

Hi @PeteKnight ,

It works but I have to manually refresh the device page in the app. The same thing happens in the dashboard. Is it possible that this refreshment appears automatically in the application? In such a way that the user realizes that the device is disconnected?

5

Your question has been answered here…

So closing this topic.

Pete.

6