HDMI Consumer Electronic Control (CEC) technology and testing - EDN
Amazon.com: Lindy HDMI CEC Less Adapter, Female to Male (41232) : Electronics
CEC overview - stm32mpu
How to Enable HDMI-CEC on Your TV, and Why You Should
TS3DV642 - Failed HDMI compliance test ID 8-9, line 29, (DDC_SCL voltage) - Switches & multiplexers forum - Switches & multiplexers - TI E2E support forums
GitHub - johnboiles/esphome-hdmi-cec: ESPHome component to send and receive HDMI-CEC messages.
Samsung Smart TV: How to Turn On 'HDMI - CEC - ARC' (Anynet+) - YouTube