ADS1115 16-Bit ADC 4-Channel I2C Module (Blue)

📈 ADS1115 16-Bit ADC Module — 4-Channel, I²C, Programmable Gain

A high-precision 16-bit analog-to-digital converter breakout built around the TI ADS1115. It gives your microcontroller four single-ended inputs (or two differential pairs) over I²C, with a programmable gain amplifier for small signals and a built-in comparator.

✨ Key Features

• 16-bit resolution — far more precise than a typical 10-bit MCU ADC

• 4 single-ended or 2 differential inputs

• Programmable gain amplifier for tiny signals, from 2/3× up to 16×
• I²C interface with selectable address — up to four modules on one bus
• On-board 3.3 V regulator and level shifting for 3.3 V and 5 V logic
• Comparator with programmable threshold and alert output

• Up to 860 samples per second

🔧 Specifications

• Chip: ADS1115 (Texas Instruments)
• Resolution: 16-bit
• Channels: 4 single-ended / 2 differential
• Interface: I²C, address selectable via the ADDR pin
• Supply: 3.3–5 V (on-board regulator)
• Input range: set by PGA, from ±6.144 V down to ±0.256 V
• Data rate: 8–860 samples per second
• Header: VDD, GND, SCL, SDA, ADDR, ALRT, A0–A3

💡 Perfect for

• Reading thermocouples, load cells and small sensor signals

• Battery voltage and current monitoring

• Precision voltage and 4–20 mA sensing

• Data logging and instrumentation projects

• Expanding analog inputs on Raspberry Pi, ESP32 and Arduino