CECCleint::write

[HowardHonig]

Has anyone been able to get the write function to work? If so, can you share a short example? Even a code snippet would be helpful.
Tried "everything". Been able to get monitor mode to work, but once a write is executed, even that stops working.

Update: Didn't get an answer to this so analyzed the code. Got the code to work on an esp32. Seems to read and write to the HDMI CEC signal great. Thanks lucadentella. Also updated the library to print out the CEC opcodes and logical address, which I found very useful to discover what the commands were giving. Used the published schematic using discreet components. That worked, too.

[amirkakhki]

Has anyone been able to get the write function to work? If so, can you share a short example? Even a code snippet would be helpful. Tried "everything". Been able to get monitor mode to work, but once a write is executed, even that stops working.

Update: Didn't get an answer to this so analyzed the code. Got the code to work on an esp32. Seems to read and write to the HDMI CEC signal great. Thanks lucadentella. Also updated the library to print out the CEC opcodes and logical address, which I found very useful to discover what the commands were giving. Used the published schematic using discreet components. That worked, too.

Can you please share your code?Thanks

[sh06un]

Has anyone been able to get the write function to work? If so, can you share a short example? Even a code snippet would be helpful. Tried "everything". Been able to get monitor mode to work, but once a write is executed, even that stops working.

Update: Didn't get an answer to this so analyzed the code. Got the code to work on an esp32. Seems to read and write to the HDMI CEC signal great. Thanks lucadentella. Also updated the library to print out the CEC opcodes and logical address, which I found very useful to discover what the commands were giving. Used the published schematic using discreet components. That worked, too.

Hi, would you be able to show what you did to get this working? Also, what published schematic are you referring to? Thanks.

[rhoffman12]

I think the schematic he was referring to was probably this one, from the original floe/CEC repo:

This circuit seems to be create a “true” open drain output, rather than the simulated open drain behavior you’d get from switching an Arduino pin between INPUT and OUPUT (I’m not sure this library even supports operating in that mode).

Following this schematic has been working for me as well, though I’ve only gotten as far as testing it with reading the CEC bus, not writing to it yet.