CANADUINO D1 Mini ADS1115 ADC (4 Channel, 16Bit, I2C)

CANADUINO® D1 Mini ADS1115 ADC (4 Channel, 16Bit, I2C)

The CANADUINO® D1 Mini ADS1115 module adds four 16‑bit precision analog inputs 0-3.3V to your D1 Mini setup.

This module is based on the ADS1115 analog‑to‑digital converter and communicates via the D1 Mini’s standard I2C pins (D4 = SDA, D5 = SCL). It allows precise measurement of voltages and sensor signals with up to 0.1875 mV resolution. Multiple compatible Arduino libraries are available.

The default I2C address is 0x49. A solder jumper on the back of the module allows changing the address to 0x48, enabling the use of two ADS1115 modules on the same I²C bus or avoiding address conflicts with other devices.

To increase robustness, each input is protected by series resistors and clamping diodes, helping to guard against accidental overvoltage or short‑circuit conditions.

Key features:

• 4 analog input channels (single‑ended mode only)
• 0-3.3V input voltage range
• 16‑bit resolution with programmable gain
• Input protection with resistors and diodes
• Default I2C address 0x49, changeable to 0x48 by solder jumper
• Operates from 3.3V (fully compatible with ESP8266 / ESP32 D1 Mini)
• Headers and terminal blocks included - not factory assembled

Code example:

Read four analog voltages (0–3.3V) and display the measured values on a D1 Mini 0.66" OLED screen. (Download)