Hi @maleche1, sorry you didn’t get a quicker response here.
Basically the answer is that you don’t need to add the extension to Cayenne since you’re not using a Raspberry Pi. That extension menu just allows our Raspberry Pi agent software to interface with the ADS1115 so it can provide its pins as a connectivity option when adding other widgets.
What I would do is take the problem out of Cayenne for a moment. Get the ADS1115 working in an Arduino sketch and just printing its values to the Serial Monitor. I found this library for that on the Adafruit site: https://github.com/adafruit/Adafruit_ADS1X15/tree/master/examples
Once you have the values output in your code, then you can create custom widgets in Cayenne where you can use
virtualWrite() to populate them on Cayenne virtual pins, we can help you with that part of course.