Martin Peach(e)k dio:

altern wrote:

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hi

i am using pd 0.39 extended on XP to control arduino via pduino. Every time I restart my computer and plug Arduino it comes as port COM13 and i have to go and change its name to COM2 in the windows hardware manager. Otherwise i get error when i try to connect to port 13

I didn't know you could change the name of a COM in Windows.

well i guess i dont change the name to the port but select another port... this is how i do it control panel > system > hardware > device manager > under Ports, select the port > rightclick select properties > port settings > advanced > COM Port Number > here I choose port number 2 because it is the lower unused port.

With [comport] you can use up to COM99 and they will all work if there is a port connected. Are you superstitious ? ;) What error do you get?

no i am not superstitious. i get this error ** ERROR ** could not open device COM13: failure (2)

after changing to port number 2 i get this Opening COM2 [comport] opened serial line device 2 (COM2)

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I guess this question has little to do with PD itself but, is there a way to make sure that it always uses port COM2 by default?

If you want [comport] to use COM2, just make a [comport 2] object. Or make a [comport 13] to have it connect to the arduino. USB comports may be assigned different numbers by the OS depending on the order you connect them in and which USB slot you use.

mm so there is no solution, in this case i will have to set the port manualy every time i startup. it is ok but if this was for an instalation it would be a problem. i guess using more up to date versions of the externals involved would be good, but i am having some issues with 0.40 and some old GEM patches

thanks

enrike