On Thursday, October 27, 2016 at 9:15:45 PM UTC-4, Ralph Underwood wrote:
>
> Oct 27 17:24:15 raspberrypi weewx[6672]: engine: Unable to load driver: 
> could not open port /dev/ttyUSB0: [Errno 2] No such file or directory: 
> '/dev/ttyUSB0'
>

hi ralph,

it looks like your rpi does not have the kernel module installed for the 
usb-serial converter that you are using.

you could try updating your pi to the latest kernel with 'sudo rpi-update'

otherwise you might have to build the kernel module yourself

when the pi is working properly you should see /dev/ttyUSB0 when you plug 
in the usb-serial converter

m

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