Ethernet Gateway for Controlling Audio and TV Devices via HDMI-CEC

This device provides control of a home multimedia (home theater system + tuner+ video recorder and other HDMI interface devices). The setup is managed through the Ethernet network using remote control, a PC or other wired devices. The Ethernet gateway takes minimum time and effort to configure and integrate into a smart home control center.

The CEC (Consumer Electronics Control) interface in the HDMI cable transmits commands and control signals from one remote control to various home theater devices and ensures their autonomous interaction. The CEC functions include on/off, playback, standby and record. This line is adopted as a standard by most manufacturers, that is why any compatible remote control can be used for equipment by any manufacturer.

 

 

It should be mentioned that the HDMI CEC Ethernet adapter allows to overcome the gap between incompatible home audio and video equipment protocols. Although it is an industry standard, the CEC interface may be modified by any manufacturer to offer greater functionality and respond to new commands. As a result, each manufacturer develops their own standard that is not fully compatible with others. For example:

  • Panasonic called this technology VIERA Link
  • Sony called it BRAVIA Theatre Sync
  • Toshiba developed Regza-link
  • Samsung devices use the Anynet+ protocol
  • Philips, JVC and Sharp came up with EasyLink, T-V Link and AQUOS Link, respectively
  • Other manufacturers called this technology an HDMI-CEC compatible protocol

The HDMI Ethernet product is an OEM solution for creating networks to control modern consumer audio and video devices.

Product Usage Scenarios

  • Overcome the compatibility gap between various protocols of home audio and video devices
  • Centralized control of the home multimedia center via Ethernet, a USB port or a COM port (RS-232)
  • A tool for testing and adjusting systems created using HMDI-CEC (including smart home systems). It enables system monitoring as well as early detection and identification of HMSI-CEC-related problems

Specifications

Parameter
Details
Controller
LM3S6965
Functional characteristics
HDMI
2xHDMI
miniUSB
1
DB9 
1
Ethernet
10/100
Outside
Materials
Plastic
Manufacturer and model
Bopla, EG1230
Physical
Size
50х70х15
Power
Power consumption
 
Power supply
5В, via miniUSB