Did any of you guys tried to do this with a leakage sensor rope like this one?
https://a.aliexpress.com/_mPIozBi
a good idea, but the picture showsthey have used insulated wire for the sence pair? how would water conduct ?
looking at other sellers it might be the yellow absorbs water and shorts the internal coductors.
To be honest I have no idea, it is used with other products like this https://a.aliexpress.com/_mq1bPwo
I have a big area to cover and using just one cable like in the initial post doest really help that much
ive just gone and ordered a meter to see what its like.
Cool! Let us know if it works please!
the tracking is saying its in my country so should be with me soon
If using a 5V supply (not 3.3V), what are the resistance and capacitance values to use?
ive just gone and ordered a meter to see what its like.
Were you able to set this up?
I looked at it and could not get anything from it. The resistace did not change when a small section was placed into water. Perhaps a larger amount of cable neaded to be submerged for a long time? but it would not work in my use case.
Came across this topic while trying to get some water leak detector cable working and figured I’d share my findings. Initially I was using a multimeter and couldn’t make any sense of it, but after setting up a touch sensor on an ESP32 I got it working PERFECTLY!
Here’s a helpful diagram clarifying which wires are the sensing ones:
And here’s the relevant ESPHome docs for setting things up:
Connect one of the sensing wires to ground and the other to the touch pin. In my case I got a reading of ~41 when dry and it consistently went all the way to 0 when wet. I was pleasantly surprised how quickly it switched between wet/dry readings, quite a bit better than an old commercial device I’m planning to replace with it! Hopefully this helps someone out!
glad you got to the bottom of it, I will buy some more and try again. Thanks.