Hi Neil, Have you seen this document? http://www.st.com/content/ccc/resource/technical/document/application_note/= group0/c0/ef/15/38/d1/d6/49/88/DM00373474/files/DM00373474.pdf/jcr:content/= translations/en.DM00373474.pdf It covers a lot of the details of cameras with digital interfaces. There are a couple of STM32 Discovery boards that already have the camera c= onnector, so there's demo code for them too. Friendly regards, Bob ________________________________________ From: piclist-bounces@mit.edu on behalf of Neil Sent: Wednesday, March 7, 2018 6:22 PM To: Microcontroller discussion list - Public.; Microcontroller discussion l= ist - Public. Subject: [EE] What does it take to record video to SD? I want to record video of at least 1.0MP to SSD (or other memory) for about 3-5 minutes. 15FPS is fine. But I really want to avoid SBCs because of the OS (and more specifically the boot time), so wondering what it would take to do this with a microcontroller. I'm looking at camera modules similar to this... https://www.aliexpress.com/item/600TVL-1-4-1-8mm-CMOS-FPV-170-Degree-Wide-A= ngle-Lens-Camera-PAL-NTSC-image/32570417705.html I believe (haven't yet found a clear answer) that these cameras do 24 bpp (Is this correct?), and if so I'd need 1 MP x 3 bytes x 60 secs x 5 mins =3D 900 MB to store raw data. That's no prob with an SD card, but I expect bandwidth will be an issue, so I'd need to compress it. This is where I draw a blank... what does it take to compress video? I'm clueless on video, so wondering if a microcontroller (say PIC32 or ARM) would be able to accept TTL NTSC video at this rate and compress it, and then store it. Or is there a specialized processor I can use to accept the NTSC video stream and store it to SD? Should I use some other protocol other than NTSC for this perhaps? Cheers, -Neil. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .