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I have an irobot create 4400 model and I'm trying to use a jetson nano to send commands to it. I want to try this example that turns on the play led. I connected the tx and rx and gnd ports from J41 header on the jetson nano to rx and tx and gnd ports on create's db25. Here's my code.

However, the create just won't move at all. I don't know if I'm missing some setup steps or just simply my codes are wrong. I wonder if anyone could be kind enough to check and see if there's anything wrong with my code? How would u write it if u want to send this command? Sorry if my problem is a bit foolish, but I'm really new to this and everything seems so complicated.

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  • $\begingroup$ Hi me7ogo 7, can you provide some more details on your setup? For example a more detailed electrical diagram with pin numbers. Also, are you trying to communicate with the green "command module" or the Roomba itself? $\endgroup$
    – Ben
    May 17 at 11:53
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Try this API note this is a python API. https://pypi.org/project/pycreate2/

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  • $\begingroup$ Welcome to Robotics GBB. Thanks for your answer but we prefer answers to be self contained where possible. Links tend to rot so answers which rely on a link can be rendered useless if the linked content disappears. If you add more context from the link, it is more likely that people will find your answer useful. See How to Answer for more info. $\endgroup$
    – Ben
    Jun 1 at 19:37

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