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I need a little code in C language in order to read a list of port on my raspberry pi.
here is more detail :
- the programme must read a list of pin(2,3,4 ect...)
- when status for each pin is "0" the programme must run a shell command "touch /home/myfile1"
- when status for each pin is "1" the programme must run a shell command "touch /home/myfile2"
this programme will run in background on the raspberry pi , so it must use less ressource.
please for sources so i can edit pin list and instruction for compil .