ADS1115 16-Bit ADC Module – Compatible with Raspberry Pi 3, 2 & B+

Expand your Raspberry Pi's capabilities with this high-precision ADS1115 Analog-to-Digital Converter (ADC) Module. Designed for makers, hobbyists, and electronics enthusiasts, this module seamlessly bridges the gap between analog sensors and your Raspberry Pi's digital inputs — all via a simple I2C interface.

Key Features

16-Bit High Resolution: Accurately detects analog signals and converts them into precise digital values, ideal for sensor-based projects.
I2C Compatible Serial Interface: Simple two-wire communication makes integration with Raspberry Pi 3, 2, and B+ straightforward.
4 Selectable I2C Addresses: Easily connect up to four modules on the same I2C bus without conflicts.
Low Voltage Operation: Runs on just 3.3V, making it perfectly compatible with Raspberry Pi's GPIO voltage levels — no level-shifting required.
4 Single-Ended or 2 Differential Input Channels: Flexible input configuration for a wide range of analog measurement scenarios.
Programmable Gain Amplifier (PGA): Adjustable input range lets you measure both large and small analog signals with confidence.
Compact Design: Small form factor fits neatly alongside your Raspberry Pi in enclosures and project builds.
Wide Compatibility: Works with Raspberry Pi 3 Model B, Raspberry Pi 2, Raspberry Pi B+, and other 3.3V I2C microcontroller platforms.

What Can You Build?

The ADS1115 ADC Module unlocks a world of DIY electronics projects. Use it to read data from temperature sensors, light sensors, potentiometers, microphones, and more. Perfect for home automation, environmental monitoring, robotics, and STEM learning projects.

Technical Specifications

Resolution: 16-bit
Interface: I2C (compatible serial)
Supply Voltage: 3.3V
I2C Addresses: 4 selectable
Input Channels: 4 single-ended / 2 differential
Compatible Boards: Raspberry Pi 3, 2, B+

Frequently Asked Questions

Q: What does the ADS1115 ADC Module do and why do I need it for my Raspberry Pi?

A: The Raspberry Pi does not have built-in analog input pins. The ADS1115 ADC Module solves this by reading analog signals from sensors or components and converting them into digital data your Raspberry Pi can process. It connects via the I2C interface using just two GPIO pins, making it a simple and essential add-on for any project that involves analog sensors.

Q: Is the ADS1115 Module easy to set up with Raspberry Pi?

A: Yes — setup is straightforward. The module communicates over I2C, which is supported natively by Raspberry Pi 3, 2, and B+. Simply connect VCC to 3.3V, GND to ground, and the SDA/SCL pins to the corresponding GPIO pins. Several open-source Python libraries are available to help you start reading data quickly.

Q: Can I connect multiple ADS1115 modules to the same Raspberry Pi?

A: Absolutely. The ADS1115 supports 4 selectable I2C addresses, allowing you to connect up to four modules simultaneously on the same I2C bus. This is ideal for projects that require monitoring many analog inputs at once.

Q: What types of sensors can I connect to this ADC module?

A: You can connect a wide variety of analog sensors, including temperature sensors (e.g. thermistors, LM35), light sensors (e.g. LDR/photoresistors), soil moisture sensors, potentiometers, current sensors, and more. With 4 input channels and a programmable gain amplifier, it handles both high and low voltage analog signals.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.