I have a project and it is running a c program on the PI. The program is meant to start running at startup.
So far I have tried to do this with rclocal, but this is depricated. Afterwards I tried using SystemD, but I kept getting startup issues when the service tried to start. Now I would like to try crontab, but this is only documented for python.
Anybody who can help me out/got a solution?
I don't understand what you mean when you suggest crontab is only documented for Python. You clearly have not looked at the documentation as there is no mention of Python.
man 1 crontab
man 5 crontab
The documentation should always be looked at first.
Add an entry such as the following to your crontab (crontab -e).
@reboot /home/pi/myprog
Where myprog is your program and needs to be executable (chmod +x myprog).
If myprog references files make sure you give the full path (or cd into the expected working directory in the crontab command).
