I have been experimenting with the ADS1115 - it does work but unless you put a "switch" to the ADS1115 volt input, it does drain the battery as it draws even when the node mcu is in deepsleep. I did connect the ADS1115 volt input to pin GPIO3 on a D1 mini and it seems to be working better and draining the battery at a lower rate. I understand there is a way to fix this based on this article but so far i have not been sucessfull - https://www.best-microcontroller-projects.com/ads1115.html.

No problems just weighing my options. I have a raspberry pi starter kit that actually came with the ADS7830 ADC but that's only 8 bit and I havent tried hooking it up yet but we will see how it goes. I may have to buy the MCP3008.

I actually installed HydroSys4 last night to test out my relays and all is good except the install seems to have broken the drivers for my wifi dongle (i use it instead of onboard since it has a huge antenna and its going outside)

The dongle has the RTL8812BU drivers so i had to compile from scratch.

Also i had the onboard wifi disabled at time of install so that may have goofed something up as well

Hello,

I was thinking about the differences between the MCP3008 and ADS115, as the ADC is a relatively simple device, there are mostly few parameters to pay attention to:

-the bit resolution

-input impedance

- sample speed

Definitely the MCP3008 has lower specs than other ADCs, that's also the reason why it is cheaper. But at the end, I preferred it simply because it fits well within the scope of the Hydrosys4 project, which is to collect analog inputs from slow changing sensors.

Especially for the hygrometers, I do not think there will be much differences if using other ADCs.

Back to the capacitive sensor v1.2, I'd say that some of them that I have used worked fairly well (using MCP3008), other where just not working and giving almost random reading. At least this was my experience.

Are you experiencing particular problems?