It's good that you've come back to the project, but you might want to do something about your project tooling, since every commit has the message "First commit".
As a style hint, also consider breaking the code into functions, instead of using triple-quoted strings (these are generally not docstrings!) to label "sections" of the code. (Even where you don't extract a separate function, that's what comments are for; the otherwise-blank lines with a # are also strange.)
Using a separate shell process for the camera control is inconvenient, and as written isn't going to work on others' machines (in the Python code, you've hard-coded an absolute path to the script in your home directory). I guess this is to avoid thinking about unbuffered I/O in Python; it's really not hard to do that on Linux (there's a curses binding in the standard library; or you can do just the "switch to raw mode" part using https://docs.python.org/3/library/termios.html and call sys.stdin.read (or perhaps sys.stdin.buffer.read) directly.)
It's good that you've come back to the project, but you might want to do something about your project tooling, since every commit has the message "First commit".
As a style hint, also consider breaking the code into functions, instead of using triple-quoted strings (these are generally not docstrings!) to label "sections" of the code. (Even where you don't extract a separate function, that's what comments are for; the otherwise-blank lines with a # are also strange.)
Using a separate shell process for the camera control is inconvenient, and as written isn't going to work on others' machines (in the Python code, you've hard-coded an absolute path to the script in your home directory). I guess this is to avoid thinking about unbuffered I/O in Python; it's really not hard to do that on Linux (there's a curses binding in the standard library; or you can do just the "switch to raw mode" part using https://docs.python.org/3/library/termios.html and call sys.stdin.read (or perhaps sys.stdin.buffer.read) directly.)
Thanks for your comments, Iĺl try to implement these suggestions in a next version of this program, I appreciate your input!