GitHub - tsowell/avr-hdmi-cec-volume: AVR code to operate a motorized potentiometer in response to HDMI CEC volume messages from a TV
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Amazon.com: BlueRigger 4K HDMI CEC Less Adapter (4K, UHD, ARC, 1080p, Ethernet) - HDMI Male to Female Adapter - Compatible with HDTV, TV Stick, Game Consoles, Laptops, Soundbar : Electronics
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CEC - Official Kodi Wiki
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