Tomorrow I will receive the acrylic bracket for the 11.6-inch screen, much earlier than I thought, I will also receive the parts to mount the Video Bumper. I am going to prepare the second 11.6-inch screen that I have, mounted on the new bracket and I will send it to my friend Orlando so that he can install it on the real machine (now it only has the 10.1 with bracket, and the 11.6 without bracket).
Today I finished the second hardware design of the main board, with a totally different electronics, I still don't know which one I will use, each one has its advantages. This design leaves all the signal processing work to an external microcontroller, leaving the Raspberry only to play the videos. The advantage of this design is that all programming is done and tested, because it is the same as I did for the Test Board with LEDS.
I have changed the power connectors, now a round jack type connector is used to power the board from a voltage of 12V. And a 2-pin connector step 3.96mm is used to power the screen with a cable from the main board. In this way, whoever wants to, can easily use an external power supply, connecting to the round jack of the main board.
I will test the two designs and decide which one to use, to send to manufacture in quantity the final boards of the Kit.
As for the videos, the RITA boat video is already completely finished, the water was changed to a real one of a video, and some effects were added to the text "There it is". I have already told the designer, do not waste more time with this video, that it is fine and we can continue with the next one on the list.
I was also testing the sound. I can use a standard Raspberry video/audio player, such as omxplayer, but as I said, there is a certain delay in the beginning of video playback, tested even with a Rasbperry pi 4 the delay is the same. This delay is probably due to the demultiplexing that the program must do to obtain Video for the GPU and audio separately. One solution would be to have the video and audio in two files separately, play the video with my current program and leave the audio (already demultiplexed) for a standard player like omxplayer or others, I have to try it. Separate video and audio, it is very easy using ffmpeg, so we would have a directory for videos and another for audios.
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