So you will be sending control messages from another device? Or locally and driven by a wb page?
Mine will have a web page based on the Guitar itself that will talk to a local deamon via CGI (at first). This way I do not need a dedicated app on the client but merely a browser.
I have a problem though. I tried playing with GPIO but with limited success. I can do GPIO output control with sys filesystem but as root only
I also tried the wiringBP library with C, Python or Bash. However wiringBP does not set the pin values at all. Any ideas why?
If no ideas appear, then I will stick to sys and write some deamon started via rcS to do my bidding. I am curious though how to make wiringBP work.