Adafruit DS1841 I2C Digital 10K Potentiometer Breakout – STEMMA QT / Qwiic

Looking for Ds1841 Breakout? Adafruit DS1841 I2C Digital 10K Potentiometer Breakout – STEMMA QT / Qwiic is available at Zbotic with fast shipping across India.

Potentiometers are the perfect tool when you want to change your circuit by turning a knob. Turns out, there are times when you want to adjust your circuit without manually turning a knob, and the DS1841 I2C Logarithmic Resistor from Maxim can do just that. It’s a programmable resistor, similar to an I2C potentiometer like the DS3502 I2C Potentiometer, so why another?

The big difference between the two is how the resistance changes in relation to changes made to the wiper. The DS3502’s resistance has a linear relationship to the wiper’s setting. Each time you change the wiper by a given amount, the resistance will change by the same amount. With the DS1841, the relationship between resistance and the wiper setting is logarithmic. This means that as the wiper setting changes, the amount of resistance will depend on where in the wiper’s range the current setting is.

Additionally, . This table allows you to specify the wiper setting for each of 70 temperature increments between -39 and 100 degrees C, plus one each for above or below that range. You can even manually set the wiper to one of the entries in the LUT.

We’ve put it on a breakout PCB with the required support circuitry and Spark Fun qwiic compatible STEMMA QT connectors to allow you to use it with other similarly equipped boards without needing to solder. QT Cable is not included, but we have a variety in the shop.  This handy little helper can work with 3.3V or 5V micros.

Features:

1. Working with the DS1841 is easy
2. The DS1841’s resistance ranges from 22kOhms to 3.7k Ohms and has 128 tap points
3. Log potentiometers are used in audio applications for things like volume control because they better match the response of human ear to sound.
4. The DS1841 can be configured to adjust its resistance based on temperature with hysteresis to keep things from jumping around
5. The temperature compensation can be adjusted by using the LUT (Look Up Table) built into the DS1841
6. It’s ready to get to work with a range of development boards
7. To make things even easier we’ve gone and written Arduino and Circuit Python/Python 3 drivers to simplify interfacing with your new knob-replacing friend

Packages Includes: 

1 x Adafruit DS1841 I2C Digital 10K Potentiometer Breakout – STEMMA QT Qwiic

This Ds1841 Breakout is a popular choice among hobbyists and professionals. The Ds1841 Breakout offers reliable performance for your projects.

About Ds1841 Breakout

Adafruit DS1841 I2C Digital 10K Potentiometer Breakout – STEMMA QT / Qwiic is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by Adafruit, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.

Product Details

• Brand: Adafruit
• SKU: AI1793
• Category: Potentiometer Module

Why Buy from Zbotic?

Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about Ds1841 Breakout and other products.

Applications

Ds1841 Breakout can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your Ds1841 Breakout today and start building.

Adafruit DS1841 I2C Digital 10K Potentiometer Breakout – Overview

The Adafruit DS1841 breakout board features a 10 KΩ logarithmic digital potentiometer controlled over I²C, allowing you to adjust resistance values in your circuit without a mechanical knob. Designed for 3.3 V or 5 V systems and equipped with STEMMA QT/Qwiic connectors, it’s perfect for remote tuning of audio levels, sensor calibration, and automated test setups.

Key Features of Adafruit DS1841 I2C Digital 10K Potentiometer Breakout –

• 10 KΩ logarithmic potentiometer element (DS1841) for smooth audio taper control
• I²C interface with up to eight programmable wiper addresses via hardware pins
• Operates on both 3.3 V and 5 V logic levels
• STEMMA QT/Qwiic connectors for solderless plug-and-play integration
• On-board EEPROM stores last wiper position on power-down
• Compact black PCB, ready to mount on breadboards or enclosures
• Genuine Adafruit product, fast shipping across India from Zbotic

Applications and Use Cases

• Digital volume control in DIY audio amplifiers and mixers
• Automated gain adjustment for sensor signal conditioning
• Remote tuning of tone-shaping filters and equalizers
• Programmable voltage dividers for precision reference outputs
• Resistance calibration in test fixtures and lab equipment
• Robotics projects requiring variable resistor feedback loops

How to Use Adafruit DS1841 I2C Digital 10K Potentiometer Breakout –

Simply connect VCC, GND, SDA and SCL to your microcontroller running at 3.3 V or 5 V logic, set the address pins (A0–A2) as needed, and attach to your STEMMA QT/Qwiic bus. Install Adafruit’s DS1841 library in your Arduino or CircuitPython environment, then call the provided functions to read and write the wiper register—adjusting resistance in real time without any mechanical dial.

Why Buy from Zbotic?

• Genuine Products: All items sourced from authorized distributors
• Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
• Free Shipping: Free delivery on qualifying orders
• COD Available: Cash on Delivery, UPI, cards, net banking
• Technical Support: Expert help for setup and troubleshooting
• Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

Can I control multiple DS1841 devices on the same I²C bus?

Yes. The DS1841 breakout board provides three address pins (A0–A2) so you can assign up to eight unique I²C addresses, allowing multiple potentiometers on one bus.

Does the wiper position persist after power-cycling?

Yes. The DS1841 includes non-volatile memory that automatically stores the current wiper setting and restores it when power is reapplied.

Can I use the DS1841 breakout as a simple voltage divider?

Absolutely. By wiring the two end terminals to a supply voltage and ground, and using the wiper as the output, you can implement a digitally adjustable voltage divider in your project.