Digital Potentiometer - X9C Practical Uses and Examples

This video shows three application examples for using the X9C digital potentiometer in a real world circuit:

1. Adjusting the gain of an op amp
2. Digital volume control circuit
3. Frequency control of an oscillator, which can be used for many things including melody synthesizers and sound effect generators.

Previous X9C Digital Pot video detailing the Arduino control library:
https://youtu.be/KqBruMXQjmA

Sketch (The one with 555 in the file name):
https://github.com/GadgetReboot/Arduino/tree/master/Uno/X9C_Button_Test

555 Oscillator Part Value Calculator:
http://www.ohmslawcalculator.com/555-astable-calculator

Op Amp Gain Calculator:
https://circuitdigest.com/calculators/op-amp-gain-calculator

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