ADS1115 module

The ADS1115 is a high-precision analog-to-digital converter (ADC) with 16-bit resolution, theoretically capable of measuring voltages accurate to 0.00009375V.
This project designs an ADS1115 module, a 4-channel high-resolution analog-to-digital converter based on the ADS1115, providing four single-ended or two differential inputs. It uses the I2C protocol, and different I2C addresses can be selected depending on the application.
This module is similar to the ADS1115 modules sold on Taobao, the difference being adjusted pin positions and a smaller size of only 18mm*18mm.
Currently, it is mainly used in my designed voltage measurement experimental device, as shown in the figure below:
Voltage measurement experimental device address: https://diy.szlcsc.com/p/py-learning-notes/voltage-measurement-experimental-device
 
 
The measured data are very close to those obtained with a multimeter, basically meeting the requirements.