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enter image description hereI'm trying to control a relay board (USB RLY08) using a section of python code I found online (https://github.com/jkesanen/usbrly08/blob/master/usbrly08.py). It is currently returning an error which I'm not sure about.enter image description here Does anyone have any ideas? I'm not actually needing all the code and instead just wanting to turn a single relay on and off.

Thanks.

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  • Hi, thanks for the suggestions. So I downloaded the pyserial-3.4.tar.gz and unzipped the contents. I then tried to run pip install pyserial from command prompt but I'm getting an error. Anyone any ideas where I'm going wrong? Commented Aug 9, 2018 at 8:04
  • I added another image above to show the error I'm seeing. Thanks Commented Aug 9, 2018 at 8:06

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You are getting this error probably because pyserial module is not installed on your system. Try installing pyserial package from PyPi index using below command :

python -m pip install pyserial
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you need to install pyserial

e.g. with 

pip install pyserial
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You need to install pyserial.

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