One can use the I2C bus from the VGA connector.

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How to acces the I2C Bus:
vga_to_i2c.jpg
or use the VGA Breakout Board.

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• https://blog.atx.name/twilight-vga-i2c-breakout-board/
• http://flipthatbit.net/2011/04/interfacing-i2c-the-easy-way/
• http://flipthatbit.net/2011/03/building-a-vga-monitor-ddc2-interface-tests/
• http://www.boichat.ch/nicolas/ddcci/method.html
• http://ddccontrol.sourceforge.net/index.html

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