Adafruit DS3502 Evaluation Board is designed to evaluate the features and functionalities of the DS3502 potentiometer. The DS3502 is a 7-bit, nonvolatile digital potentiometer featuring an output voltage range of up to 15.5V. This potentiometer allows the microcontrollers to adjust the resistance over an I2C bus. The Arduino, CircuitPython board, or Python-powered computer can communicate with the DS3502 potentiometer via the I2C bus and tell it to vary the resistance. This potentiometer is placed on a breakout PCB with the necessary support circuitry and SparkFun Qwiic compatible STEMMA QT connectors. These connectors allow similarly equipped boards to connect to the potentiometer without any need to solder them. The DS3502 potentiometer features a 7-bit wiper value with 128 possible levels of resistance ranging from 0Ω to 10kΩ.
DS3502 Digital Potentiometer:
Allows microcontrollers to adjust the resistance
Communicates via I2C bus
SparkFun Qwiic compatible STEMMA QT connectors allow similarly equipped boards to connect to the potentiometer without any need to solder them
128x wiper tap points
Address pins allow up to 4x DS3502s to share the same I2C Bus
7-bit wiper value with 128x possible levels of resistance