HDMI (High-Definition Multimedia Interface) Extension board is a compact audio/video interface which allow you to transmit encrypted uncompressed digital data.

HDMI interface is a digital alternative to consumer analog standards, such as radio frequency (RF) coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, or VGA (also called D-sub or DE-15F). HDMI connects digital audio/video sources (such as set-top boxes, DVD players, HD DVD players, Blu-ray Disc players, AVCHD camcorders, personal computers (PCs), video game consoles (such as the PlayStation 3, Xbox 360, and Wii U), AV receivers, tablet computers, and mobile phones) to compatible digital audio devices, computer monitors, video projectors, and digital televisions.

For HDMI extension board schematics diagram download Extension_Schematics_HDMI.pdf file.

On the following HDMI Extension board picture you can see location of its main components:

Extension board components:

1. Demoboard Connector		J1 to plug extension board to compatible LPC-4350-DB1 or LPC-1850-DB1 demoboard.
2. HDMI controller		U1
3. I2C Address Pins		J5 jumper for selecting I2C address pins.
4. Button		S1 button for assigning user action.
5. HDMI connector		J4 HDMI connector for connecting compatible monitor or TV.