Is there any possible to make analog video input (from FPV camera fo i.e.)?

obstruse / pico-composite8

Raspberry Pi Pico NTSC 8-bit Composite Video output using Resistor R2R DAC, interlaced at 640x480, with slideshow on second core.

GNU General Public License v3.0

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Is there any possible to make analog video input (from FPV camera fo i.e.)? #4

Closed NicholasShatokhin closed 9 months ago

NicholasShatokhin commented 9 months ago

Is it possible to make grayscale analog video input via gpio?

obstruse commented 9 months ago

Probably wouldn't work very well - the Pico ADC is 2 usec per sample. That would give about a 25 pixel horizontal resolution. Might be able to overclock to 50 pixels...

NicholasShatokhin commented 9 months ago

Can you tell how? I will use it as example with bigger raspberry pies.

Or can I use some external ADC?

obstruse commented 9 months ago

Probably the easiest would be to use a USB Video Capture Device. They accept analog video input and present as a USB camera. Plug that into a Raspberry Pi (3 or 4) and you can use Python: PiCamera, OpenCV, etc...

(Looks like GitHub isn't forwarding messages?)

NicholasShatokhin commented 9 months ago

Too slow. I need realtime solution