One solution is discussed here: http://rwsarduino.blogspot.com/2013/02/pi-progress-tidbits-and-serial.html
It is not the most secure solution but should get you going for debugging purposes. Another solution, better, suggested here http://www.sbprojects.com/projects/raspberrypi/serialsetup.php "add the dialout group the the www-data user" Massimo On Friday, 15 March 2013 03:35:06 UTC-5, Niphlod wrote: > > it's fine, but what you need to check is for the user who started the > web2py process to be able to use your /dev/serialwhatever interface.... > How did you install web2py ? > > PS: I have a raspberry too :P > > On Friday, March 15, 2013 9:28:09 AM UTC+1, The Organisation of Secret > Shoppers wrote: >> >> so do you mean i must edit my controller and views from the terminal? >> (currently i'm editing them through the web) and the current application >> was created using application wizard, which i think it said that it have to >> be modified in the wizard itself. >> >> >> On Fri, Mar 15, 2013 at 3:33 PM, Christian Foster Howes <[email protected] >> > wrote: >> >>> the "user" for web2py depends on how you launch it... >>> >>> if you call: >>> >>> python web2py.py >>> >>> then it runs as you >>> >>> if you: >>> >>> sudo su bob >>> python web2py.py >>> >>> it runs a bob. >>> >>> if you use apache or some other server i believe by default it runs as >>> the user that is running apache. >>> >>> >>> On Thursday, March 14, 2013 8:41:25 PM UTC-7, The Organisation of Secret >>> Shoppers wrote: >>> >>>> hmm how do i check? i think running the python script has to be "root" >>>> user? but i'm not sure what is the user type for the web2py... >>>> >>>> >>>> On Thu, Mar 14, 2013 at 4:24 PM, Niphlod <[email protected]> wrote: >>>> >>>>> did you check that the user running your "working" script is the same >>>>> as the one running the "I'm going wrong" web2py ? >>>>> >>>>> >>>>> On Thursday, March 14, 2013 8:30:38 AM UTC+1, [email protected]: >>>>>> >>>>>> Hello guys, >>>>>> >>>>>> >>>>>> i hope someone can help me with this! i have been stuck here for >>>>>> days. I just created a web app using web2py and i want to use it to send >>>>>> some serial commands to a device through Raspberry Pi. >>>>>> >>>>>> I have successfully sent the commands from R-Pi to the device by >>>>>> running a Python script in the terminal. >>>>>> >>>>>> But i thought web2py is using python as well so i did something >>>>>> similar but i get the error below: >>>>>> *<class 'serial.serialutil.SerialException'> could not open port >>>>>> /dev/ttyAMA0: [Errno 13] Permission denied: '/dev/ttyAMA0'* >>>>>> >>>>>> >>>>>> my codes are: >>>>>> >>>>>> in Controller: >>>>>> >>>>>> >>>>>> def test(): >>>>>> >>>>>> import serial >>>>>> >>>>>> serialport= serial.Serial("/dev/ttyAMA0", 9600, timeout=0.5) >>>>>> >>>>>> return dict() <-- not sure what to return >>>>>> in view/default/index.html: >>>>>> >>>>>> <a href = "{{=URL >>>>>> <https://10.0.0.132/examples/global/vars/URL>(c='default', >>>>>> f='test')}}"><img src ="/Comfort2/static/images/off.****jpg" width ="75" >>>>>> height="75"</a> >>>>>> >>>>>> >>>>>> i created a default/test.html as well. >>>>>> >>>>>> >>>>>> i have no idea what's wrong! :( give me some hints please. thank you! >>>>>> >>>>> -- >>>>> >>>>> --- >>>>> You received this message because you are subscribed to a topic in the >>>>> Google Groups "web2py-users" group. >>>>> To unsubscribe from this topic, visit https://groups.google.com/d/** >>>>> topic/web2py/tiWZkXMoo6E/**unsubscribe?hl=en<https://groups.google.com/d/topic/web2py/tiWZkXMoo6E/unsubscribe?hl=en> >>>>> . >>>>> To unsubscribe from this group and all its topics, send an email to >>>>> web2py+un...@**googlegroups.com. >>>>> >>>>> For more options, visit >>>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>>>> . >>>>> >>>>> >>>>> >>>> >>>> -- >>> >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "web2py-users" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/web2py/tiWZkXMoo6E/unsubscribe?hl=en. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> >> >> -- --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
