But this project, made up by a maker known as Theloosearrow on Reddit, adds another missing piece into the puzzle by creating a clone-like effect to display subtitles. With a Raspberry Pi and a Raspberry Pi project, this Raspberry Pi project overlays subtitles as closed captions while ignoring video from the TV. Image 1 of two. Image 2:2 Theloosearrow shows how a Raspberry Pi plays video through the composite output. This is fed to a Arduino equipped with the Video Experimentor Shield. It’s a kind of video-exposer tool that can help you to get this story done. But Theloosearrow is using it for its LM1881 video sync separator. It’s possible with this module to take this simple gesture. On the Pi, a custom Python script is used in various ways to play video and transmit SRT subtitles. The Arduino will tell him when to play each line at a specific time in the video, so all of them synchronize in real time. The Arduino creates a closed caption signal using the subtitle data that the TV can read natively. Click here to read this photo of the Pi project in action.