September 2019 Update

New! We're moving to the new forum, eventually it will replace this blog. Please join us there.

View the Most Recent Feature Sheet by clicking HERE!

Friday, September 6, 2019

Dual Level Soil Moisture Sensor, a new mystery!

In my post on Sept 3, 2019 I talked about re-introducing the dual level soil moisture sensors, and at the time, they seemed to be working correctly, but I would watch them over time...

Well, something interesting is happening, have a look at sensor #64...


The top sensor didn't change much over the 3 days, that's normal, since I had not watered this pot in a bit. The spike upward is when I just watered it today.

The bottom sensor showed a steady increase in moisture, and then when I watered it today, the moisture level dropped!

The two sensors are reading inverse of each other.


Now we look at Sensor #65.


At least here the trend is toward a drier soil for both sensors, although the difference is small. I'll have to wait a few more days and see how it goes. The biggest surprise is why #64 bottom sensor is reading inverse, but #65 bottom seems normal?  They are the same design, and read with the same code... Let's see how this pans out over the next few days.

No comments:

Post a Comment

Any comments deemed off topic or offensive will be removed