I am writing a python script to process an image. I need to take automated screenshots. How can i do that with some kind of command ? No root acces. I am using termux and terminal emulator.
You would need elevated privileges, at least of user 2000 (shell) or higher. Since the Android is not rooted, your best bet is to get adb running in wireless mode in your device. You would also have to load a compatible adb binary for your Android to connect to localhost via adb.
Once this have been achieved, run
adb shell screencap /sdcard/FILE_NAME.png