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Noisy Meter

You don't have to worry about being too loud anymore.

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A lot of young people these days are beginning to venture into the world of gaming, due to the pandemic and stay at home condition. The one problem that they face while gaming is how noisy they are being. Noisy meter is a device that I made that shows how loud you are while doing these activities. This device also helps me keep a track of the background noise present when I'm recording music as I also am a musician/artist (you can check me out on Instagram : ryanfernzz or YouTube : Ryan Fernandez).

The sound sensor is calibrated to have a normal reading of 49dB as it resonates the amount of decibels of a normal room with a fan switched.

The first step was to check if all my components were working. So I connected my sound sensor to my Arduino UNO board and wrote a small code to give an analog reading of the output the sound sensor picked up. It gave a proper reading. The next component to test was the OLED display. I made the necessary connections and uploaded the 'Hello World' code. Unfortunately, the result was that I got scammed as the display was not functional. So I ordered a new one and thankfully this worked fine. 

Now that all the components were functioning, it was time to go ahead with the project. I made all the necessary connections and uploaded a code to read the signal picked up by the sound sensor and show the output on the OLED display and it worked properly. 

The next step was to make the box that would contain all these components. I made a CAD drawing of the box I wanted and got it made with MDF. After the box was made, I fit in all the components and closed the box.

I now use this every time I'm at the laptop whether it be playing games or attending class or anything.

Top.f3d

This is the CAD drawing of the top of the box

fusion - 55.11 kB - 09/02/2021 at 11:59

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Box Base.f3d

This is the CAD drawing of the bottom of the box

fusion - 65.63 kB - 09/02/2021 at 11:58

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  • 1 × Arduino UNO Board
  • 1 × KY-038 Sound Sensor
  • 1 × 1.3 Inch OLED Display
  • 1 × Breadboard Electronic Components / Misc. Electronic Components
  • 1 × Jumper Cables Many

  • 1
    Connecting the Sound Sensor

    The KY-038 Sound Sensor has 4 pins - Analog Output Pin, Ground Pin, Voltage Pin and the Digital Output Pin. Connect the pins according to the KY-038 datasheet(this can be found online)

  • 2
    Connecting the OLED Display

    The OLED Display has 4 pins - Ground, Vcc, SCL, SDA. Connect the pins again according to the data sheet. Also, make sure to check all the details of the OLED display you have because the Arduino libraries used are different for different OLED displays. Use a breadboard to make the connections easy and less crowded.

  • 3
    The Code

    Since I am a rookie at coding, I had to salvage code from here and there and edit it to fit my requirements. I watched a lot of YouTube videos and went through the Arduino Community page to get the code snippets I needed. I then combined all of them and finished the coding part

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