I tried using the runShellCommand(), and when i got no result either, I tried the Examples->Bridge->ShellCommands
Uploaded the code to the Yun via USB and there is absolutely no response nor activity.
If I ssh in to the Linino side, and run the pretty-wifi-info.lua script it works perfectly, however there seems to be no communication to the Arduino via the Bridge when running the Example program.
Are there any debugging steps to determine if the Bridge-Process code is working? I am using either the 1.5.4 beta or the arduino-nightly build systems but with no success on either.
I am able to send data out using YunClient, sending an http request to a remote website and getting the expected response
However, using Process and runShellCommand, there appears to be no communication.
Maybe the result of the curl command is a long string? I had problems with this in the past and now when I do a curl command my result are short strings, no more than ten characters (better less). Check out too the memory available for variables after compiling your sketch. Strange things happen when you are low of memory.
I was using the arduino-nightly setup as I had read it had fixed a serial buffer issue. In searching for answers, as I could not get the sample code to work with this build, I went back to the arduino-1.5.4beta I had originally been using.
At this time, the examples and my working code now work.
Cannot pinpoint why the other dev environment was not working for me.