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Easy Arduino Volume Mixer For Your Pc

Made by deley521 / Games & Gaming / Music / Productivity

About the project

The idea is to have complete volume control at your finger tips and bypass the unintuitive windows volume mixer. It’s very simple to do and is limited only, by the amount of Arduino inputs. Take control over your master, Spotify, chrome, or any other program/game you’d like. As to where you place it that’s up to you.

Project info

Difficulty: Easy

Platforms: Arduino, Windows

Estimated time: 3 hours

License: GNU General Public License, version 3 or later (GPL3+)

Items used in this project

Hardware components

	ARDUINO NANO V3	x 1
	Rotary Potentiometer - 10k Ohm, Linear	x 2
	USB A/Micro Cable - 2m	x 1
	Cast aluminium project box	x 1
	Potentiometer knob	x 1

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

	Soldering iron	x 1
	Wire strippers	x 1
	Drill	x 1
	Metal step bit	x 1

Story

If I’m going to be honest I made this because I was bored and needed something to do. BUT

CAD, enclosures and custom parts

Aluminum Project box

Go to download

Code

Arudino IDE upload code

Simply upload to your arduino and change the number of sliders you want. Then change input to match the inputs you soldered your pots to on the arduino.

const int NUM_SLIDERS = 5;
const int analogInputs[NUM_SLIDERS] = {A0, A1, A2, A3, A4};

int analogSliderValues[NUM_SLIDERS];

void setup() { 
  for (int i = 0; i < NUM_SLIDERS; i++) {
    pinMode(analogInputs[i], INPUT);
  }

  Serial.begin(9600);
}

void loop() {
  updateSliderValues();
  sendSliderValues(); // Actually send data (all the time)
  // printSliderValues(); // For debug
  delay(10);
}

void updateSliderValues() {
  for (int i = 0; i < NUM_SLIDERS; i++) {
     analogSliderValues[i] = analogRead(analogInputs[i]);
  }
}

void sendSliderValues() {
  String builtString = String("");

  for (int i = 0; i < NUM_SLIDERS; i++) {
    builtString += String((int)analogSliderValues[i]);

    if (i < NUM_SLIDERS - 1) {
      builtString += String("|");
    }
  }
  
  Serial.println(builtString);
}

void printSliderValues() {
  for (int i = 0; i < NUM_SLIDERS; i++) {
    String printedString = String("Slider #") + String(i + 1) + String(": ") + String(analogSliderValues[i]) + String(" mV");
    Serial.write(printedString.c_str());

    if (i < NUM_SLIDERS - 1) {
      Serial.write(" | ");
    } else {
      Serial.write("\n");
    }
  }
}

Credits

deley521

Just like doing little projects that make my gaming and music making easier or interesting

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Easy Arduino Volume Mixer For Your Pc

About the project

Project info