I use an Amcrest wifi security camera (IP4M-1026B). It’s configured to push a frame every minute via ftp. Pulling frames would’ve been a little easier, but this works just fine since there’s no need for frames to be captured at specific times. The timing doesn’t drift and the camera uses ntp so the time stamps are accurate. It’s waterproof and has a good field of view for this application, and most importantly, I had it laying around when I got the bug to add a webcam. http://www.2pi.org/wx/index.html
-Les > On Jul 2, 2021, at 1:55 PM, Eric K <[email protected]> wrote: > > > Based on first hand experience, can people recommend various IP cameras > (ideally an Ethernet or wifi camera) with a focus towards ease of grabbing a > single frame from a Linux command line? > I'd like to be able to grab single frames to use in the weewx webpage. > > I don't want an RaspberryPi camera because I'd like multiple cameras and I > don't want to be tethered to a RaspberryPi via a short ribbon cable. > > I've tested am Ethernet-connected camera that puts out an rtsp stream. I > successfully used an ffmpeg command line to start the stream, wait 10 seconds > and then grab a frame. Sometimes 10 seconds isn't enough and I have to try > 12-15 seconds. > ffmpeg -loglevel info -rtsp_transport tcp -i > "rtsp://192.168.7.51/rtsp-stream" -ss 00:00:10 -r 1 -vframes 1 -y > /home/weewx/Pictures/image.jpg > It works, but I don't think rtsp is the ideal transport method for grabbing a > single frame, because you have to wait about 10+ seconds for the stream to > fully form a valid image. > > I wonder if anyone has tried the ESP32-CAMs? They get connected to an > ESP6288 wifi module, and are thus small and wireless. > https://www.amazon.com/ESP32-CAM-Bluetooth-Camera-Module-Development/dp/B07S5PVZKV > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/058f20b9-782e-408a-bca4-fdd8ca1d2d60n%40googlegroups.com. -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/0A2CAE7B-29F7-46C9-BF76-72566B4DC08D%402pi.org.
