Arduino 101: Progress bar using Oled Display and Rotary encoder

The main purpose of this project you can built a volume meter display, you can add more components like speaker or an mp3 module and more, depends on your desire project. There would be a percentage (%) on the progress, because the size of the oled is too small, i just remove it since there is the number of VOL so it's not needed if necessary. If you want to know about the code comment down your email below. thank you for passing by.