7SemiVLab – OPT4048 Web Serial RGB Viewer
Streams RGB = R, G, B lines from your Arduino (115200 baud) and visualizes live color.
Disconnected
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#000000
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Tip: Your sketch prints lines like RGB = 128, 64, 32. This viewer parses exactly that format.
Serial Log
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Requires a Chromium-based browser (Web Serial). Tested on Chrome & Edge.

      

        Source device: 7Semi OPT4048 @ Arduino