Let's Control It

Hello,

I have connected a Soil moisture sensor to my analog input.
It works in the ESP 8266, but the value that it sends to domoticz stays 0.

What to do?

What type of sensor did you define in Domoticz?
When in doubt, define a "custom" sensor in Domoticz.

Auuww.. that was easy. I used Soil moisture, that didn’t work.
Now with the custom sensor it works perfect!

Is there a way to invert the analog value? 0 is the sensor under water, 100 is dry.

You can use the formula on the device configuration page.
I guess something like this would do:

100-%value%

That doesn't work. Als no info the wiki.

marktn wrote: ↑30 Oct 2019, 18:40 That doesn't work. Als no info the wiki.

Where do you enter the formula and what exactly do you enter there?

Have you also read this part? https://www.letscontrolit.com/wiki/inde ... asyFormula

I have to admit it isn't the best documentation, but if you look for "formula" on the wiki, you do find a number of examples.

[/quote]
Where do you enter the formula and what exactly do you enter there?

Have you also read this part? https://www.letscontrolit.com/wiki/inde ... asyFormula

I have to admit it isn't the best documentation, but if you look for "formula" on the wiki, you do find a number of examples.
[/quote]

I have read that part of the wiki. I think a formula isn't possible to invert the analog signal.
Mark

I could be wrong here, if the value is 100 for dry and 0 for water, could the formula not do something like 100 - value? 100 become 0 and 0 becomes 100

By the way which sensor is it? I am always looking for a better soil moisture sensor.

I use the formula (1024-%value%)/100 in my soil monitor.
Here's a link to the tutorial guide.

http://resources-area.co.uk/node-red-fl ... sensor.pdf

On my set-up I'm using a small-signal transistor to switch the +3V3 rail on/off to the soil sensor (to reduce the effects of corrosion).