Generating Audio VGA Visuals Using Arduino

Overview

The project illustrates the use of Arduino for generating audio VGA visuals which is related to the dual monitor VGA hacking project.

Explanation

In order to build the device, there are several components which are required. The computer or laptop to be used should have a VGA output along with one or 2 CRT or LCD monitors. Any Arduino, PICAXE or other microcontroller can be used as long as it is having an onboard ADC or standalone ADC. There are 2 female VGA connectors and 1 male VGA connector along with the audio cable.

The concept behind the design is to connect the horizontal and vertical sync signals from the computer or laptop to other monitors. The Arduino / microcontroller unit / ADC will control the actual RGB data lines. The monitor cable will contain the 15-pin high density D-SUB male connector while at the video card is the 15-pin high density D-SUB female connector. The setup uses an Arduino board where an audio signal is taken and the signal wire is connected to analog pin 0 and the Arduino ground to the shield. VGA connector pin 5 is also connected to ground.