Introduction: Digital UV-meter, With OLED Display. Arduino Project for Beginners

Video demonstration (English subtitles).

Hello, instructable. Today I will tell you how to make a simple digital VU meter (sound level meter) using Arduino and OLED displays and 2 resistors by yourself (DIY). The device is quite simple, for beginners it will be a rewarding experience.

Step 1: Components for This Arduino Project:

Picture of Components for This Arduino Project:
  1. Arduino Nano V3.0;
  2. 0.96 inch IIC I2C 128X64 OLED Display;
  3. One 10K, resistor(R1 no scheme);
  4. One 10K-100K potentiometer(R2no scheme);
  5. Wires.

Step 2: Device Circuitry

Picture of Device Circuitry

As you see the scheme is extremely simple, every novice will make.

  • Resistor R1(10K) it is necessary!
  • Potentiometer R2 may have a nominal value of 10K up to 100K.It is used to adjust the sound level.

Step 3: Source Code

Picture of Source Code

ArduinoVuOledMeter.ino - all this - the mathematical magic.

display.c - BMP-file to convert to an array of points. It must be located near the ArduinoVuOledMeter.ino.

Step 4: Enjoy

Created by Techn0man1ac.

P.S. If you want a stereo version - make two identical devices.

Comments

Lance_Tronic (author)2017-07-07

I have been looking for useful projects to do with my bunch of OLEDs, and this will fit the bill. Thanks for the instruct-able..

Enjoy

sumondigi (author)2017-06-28

good one.i always look for some good Vu meter project. can u make a bar type Vu meter project.??

techn0man1ac (author)sumondigi2017-06-28

Yes, if you have a bar type of the scale size of 128 by 64. But you can do it yourself using Image generate V2.004:
http://alex-exe.ru/programm/image-generate/
This is my favorite program.

sumondigi (author)techn0man1ac2017-06-29

thanks for your reply and sharing the effective link.

techn0man1ac (author)sumondigi2017-06-30

You are welcome

techn0man1ac (author)2017-06-28

Test1:

Test2:

https://vimeo.com/222060213

rafununu (author)techn0man1ac2017-06-29

Is the floating image due to the camera or is it real ?

techn0man1ac (author)rafununu2017-06-29

Flicker of the display with an eye unnoticed

arthur_muh (author)2017-06-28

Thanks dude!!! i was searching someting about that to use in my micro-system!

techn0man1ac (author)arthur_muh2017-06-28

You are welcome, Bro.

About This Instructable

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Bio: Techn0man1ac - техноманьяк
More by techn0man1ac:Digital UV-meter, With OLED Display. Arduino Project for Beginners
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