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Arduino library for HDMI CEC communication

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how to decord volume control fuction with arduino cec, help please

Hello, just a question, rather than an issue. Does the TV notify its status on the CEC bus? Can i see if it left standby? Thanks.

Dear Floe, I have questions regarding your sample code. Here is the setting of my testing environment, 1. I built the simple circuit following your suggestion in CEC_Electrical.png 2. I...