Which is why I pointed you to the youtube video that does this, and suggested that you get this working then add-in the Blynk part. Have you watch it?
If you want another example of how to take a picture and do something with it then you could look at this topic, but personally I think the youtube video is more appropriate:
I would have thought that if you wanted to do a timelapse then you’d either go for a timer to trigger the action every so often (once per 10 seconds would give 240x speed) and maybe use a timer widget to set the hours of operation (to avoid lost of pictures taken in the dark.
Pete.