Table of Contents

1. Introduction
2. Used modules & PinOut
3. Wiring

• Power supply
• I2C Bus
• I2C Addresses

7. Workflows
8. List of references

Introduction

The ADS1115 Analog-digital-converter have a solution of 16 bits, which means that the analog value can be quantized in 65536 steps. Usually the Arduino boards have a resolution between 10 - 12 bit (1024 - 4096 steps). The ADS1115 also have a internal amplifier if you want to measure low power signal. Last but not least you can outsource some function by using the alarm function of the ADS1115.

Usage and a few examples in my repository:

Repository of Adafruit: https://github.com/adafruit/Adafruit_ADS1X15

Used modules

Wiring

Power Supply

• 2 - 5,5 V but i recommend to use 3,3 V

I2C Bus

• The Wiring is not depending of the board which you want to use. For data transmission you have to connect SDA and SCL with the corresponding ports of the board

I2C Addresses

The change of the I2C address is connection programmed

ADS1115 Pin Connection	ADDR not connected	ADDR - GND	ADDR - VCC	ADDR - SDA	ADDR - SCL
I2C Address	0x48	0x48	0x49	0x4A	0x4B