ADS1115 Board for soil moisture monitoring (or any analog, really) some thoughts guys ?

[Grumpf]

Hi guys, I "designed" this based on the the size of 3 18650 holders (maybe overkill I know, in //). The point is to use the 4 analog input of the ADS1115 with capacity moisture sensors like this :

SEN0193-test.png (26.57 KiB) Viewed 10636 times

The A0 of the Esp will be to monitor the batteries. I may use I²C with an Oled & motion sensor to display values. May also add solar panel...
Here's where I am so far, any advice is welcome.

Sheet.png (230.96 KiB) Viewed 10636 times

Wich gives this (not optimized with copper for clarity).

PCBTemp.png (305.46 KiB) Viewed 10636 times

Voilà, ideas, comments, warnings welcome.

[TD-er]

Maybe also add a header for an extra 3v3 input?
There are Wemos modules out there with limited 3v3 voltage regulators.
For example one of those: https://nl.aliexpress.com/item/32829322098.html

[Grumpf]

Indeed. Thanks I'll do that and redesign it.