Product description
Adafruit DS3502 is a digital potentiometer with an I2C interface that makes it possible to control resistance electronically via a microcontroller instead of using a manual knob. It is well suited for automatic adjustment of audio level, contrast, calibration, sensor tuning, and other projects where variable resistance is desired. The board uses the DS3502 with 7-bit resolution, providing 128 adjustable steps across 10 kΩ. Communication takes place via I2C, and the board is equipped with dual Qwiic connectors for quick solderless connection. It works with both 3.3V and 5V systems and is compatible with platforms such as Arduino, Raspberry Pi, and ESP32.
Specifications:
- Sensor chip: Maxim DS3502
- Type: Digital potentiometer
- Resistance: 10 kΩ
- Resolution: 7-bit
- Adjustment levels: 128 steps
- Communication: I2C
- Default I2C address: 0x28
- Selectable addresses: Up to 4
- Logic level: 3.3V and 5V compatible
- Analog rated voltage (max): 15.5V
- Connection: 2x Qwiic
- Platform support: Arduino, Raspberry Pi, ESP32, CircuitPython, Python
- Application areas: Volume control, calibration, signal adjustment, automation
