Digital Audio Volume Control Circuit using PT2258 IC and Arduino

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₹2500 ₹4800

A potentiometer is a mechanical device using which one can set the resistance according to the desired value, thus changing the current passing through it. There exist many applications for a potentiometer, but mostly a potentiometer is used as a volume controller for audio amplifiers


A potentiometer does not control the gain of the signal, but it forms a voltage divider and that is why the input signal gets attenuated. So in this project, I am going to show you how to build your Digital Volume Controller with the IC PT2258 and interface it with an Arduino to control the volume of an amplifier circuit. You can also check various Audio related circuits here including VU metertone control circuit, etc.

Components Required

  1. PT2258 IC – 1
  2. Arduino Nano Controller – 1
  3. Generic Breadboard – 1
  4. Screw Terminal 5mm x 3 – 1
  5. Push Button – 1
  6. 4.7K Resistor, 5% - 2
  7. 150K Resistor, 5% - 4
  8. 10k Resistor, 5% - 2
  9. 10uF Capacitor – 6
  10. 0.1uF Capacitor – 1
  11. Jumper Wires - 10

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ROBOSPARK INDIA

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