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  • std_logic_vectorstdlogicvector@chaos.social
    Aug 21, 2026, 7:50 PM

    Hivemind to the rescue!

    I've got two NOIP1SN0300A (aka Python 300) sensor from OnSemi and they both have this fixed noise pattern in the image. It's not in the test pattern, so I suspect something in the analog config.

    The full description of the registers is only available with an NDA, but I found a driver on GitHub that has the initialization sequences (albeit without much explanation.)

    Does anyone have more information on that sensor or maybe even access to the documentation?

    An overexposed image of two fluorescent tubes in a window titled "modularCamera Python300". The lower half is almost completely white, the upper half has a noisy pattenr of black pixels that fades from the top to about the middle of the image.
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Replies

  • std_logic_vectorstdlogicvector@chaos.social
    Sep 6, 2026, 11:26 AM

    I found an old revision of the sensor datasheet that has a table of the required register uploads.

    Now the image looks a lot better!

    Let's see if I can squeeze the full 815fps out of the sensor...

    A screenshot of an ffmpeg window titled "modularCamera Python300" showing a black&white image of a rooftop.
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  • std_logic_vectorstdlogicvector@chaos.social
    Sep 6, 2026, 12:31 PM

    Managed to record video at 800fps with 1ms of exposure time!

    It's slowed down by a factor of 32 to a framerate of 25fps.

    The 2 seconds of recorded time stretch to 64 seconds!

    Black and white slow motion video of a stopwatch. The image is rotated clockwise by 90. The hand of the clock ticks every 0.2 seconds which is slowed down to a movement every 6.4 seconds.
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  • std_logic_vectorstdlogicvector@chaos.social
    Sep 11, 2026, 4:41 PM

    Managed to record video at 775fps with 1ms of exposure time!

    It's slowed down by a factor of 31 to a framerate of 25fps.

    The 2 seconds of recorded time stretch to 62 seconds and the LED blinking at 31Hz slows down to 1Hz.

    Black and white video of a stopwatch and a blinking LED. The hand of the watch advances one tick every 0.2 seconds in real time, the LED blinks at 31Hz. The video is recorded at 775fps and played at 25fps, making the clock hand and the LED slower by a factor of 31.
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