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

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

About: Techn0man1ac - техноманьяк

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:

  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

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

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.

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    13 Discussions

    I got this error:

    In file included from C:\Users\02385\Documents\Arduino\ArduinoVuOledMeter\ArduinoVuOledMeter.ino:13:0:sketch\OLED_I2C.h:79:42: fatal error: hardware/avr/HW_AVR_defines.h: No such file or directory

    1 reply

    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..

    1 reply

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

    3 replies

    thanks for your reply and sharing the effective link.

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

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

    1 reply