Digital Potentiometer AKA Volume Control

Learn how to implement a digital potentiometer using the X9C103 chip and an Arduino for easy circuit adjustments. Explore the device's ability to remember settings after power-off, control volume with an infrared remote, and utilize its simple three-wire control interface. Discover the various available resistance values and access demo sketches suitable for beginners. Gain insights into power management, initialization, remote control implementation, and nonvolatile memory usage. Understand key specifications like current limits, voltage ranges, and potential charge pump noise. Follow along with practical demonstrations, code explanations, and tips for integrating this affordable component into your projects.

Introduction
Power On
Initialisation
Remote Control
Volume Control
Nonvolatile memory
Read code
Store volume
Reset volume
Send value to continue
Restore volume to 28
Change volume to 28
Power off
Power back up
Restoring volume
Switching waste
The rub
Disconnect the power
Testing
Price
Requirement
On Screen
Current
Maximum
wiper current
terminal voltages
charge pump noise
Pins
Chip Select
Timing Diagrams
More Information
Live Demo
Practical Demonstration
Code Window
Conclusion
Summary