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Adding support for audio/video #3
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@Gurkenflieger if you have any thoughts they would be most welcome. Having done some more reading up today on the ESP32 and video capture, it looks as though it will be a stretch to manage it. If you have any insights as to the video format that Comelit is using that would be great, everything I read suggeests it's NTSC/PAL. With that in mind, the ESP32 has support for the ESP32-CAM module, which seems to support an 8 or 16 bit DVP image sensor. There are also low power PAL/NTSC decoder chips available (eg. TVP5150AM1), which output the same 8-bit YCbCr 4:2:2 as the esp32 cam to my knowledge. The esp32 apparently has a 20MHz limit on the pixel clock from the sensor, whilst PAL/NTSC requires a 27Mhz clock, though after a bit of searching theres this rather neat workaround by the looks of it from However, this is where I'm not sure the video component is solvable - the raw video stream is too large to stream (as highlighted here), if you've got any thoughts as to whether this is doable without building a fully fledged streaming SBC, I'm all ears, though dealing with video decoding/encoding feels like it's getting a bit beyond the scope of a simple retrofit device. |
@sashahilton00 I can say that the video option would be out of my comfort zone concerning the RF layout and debugging. If you like to contribute and go for a prototype with the audio part, you are welcome. I then could integrate in the PCB, if tests run ok. |
Closed due to inactivity |
Hi,
Opening an issue here after @Elektroarzt and I emailed for a bit. Relevant parts of the the email trail pasted below:
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