This repo in detail shows how to make a voltmeter using unclerus ADS111X library in ESP IDF
- clone the library to your
~/esp/.
git clone https://github.com/UncleRus/esp-idf-lib.git
- Clone this repo.
- Make connections as shown:
| S. No. | ADS 1115 | ESP 32 |
|---|---|---|
| 1. | V_DD | V_in or 5V source |
| 2. | GND | GND |
| 3. | SCL | D22 |
| 4. | SDA | D21 |
And, Your analog input in A0
No other pins need any connections in my experience uptil now. Hope this helps anyone facing these issues, as this is the only thread I found after googling for solutions