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I need confidence that the data my Raspberry Pi is telling me it's sending to an external device via USB is actually leaving the Pi. I was hoping there would be some way of printing the serial data to the screen or a file.

I've looked at 'cat' but don't think this can do what I need

How do I view data leaving via /dev/ttyUSB0?

tinlyx
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Colin G
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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Community Jul 24 '23 at 14:02
  • Are these helpful? [How can I monitor serial port traffic?](https://unix.stackexchange.com/q/12359/108618) [How to filter wireshark output data to only view ttyUSB0 data?](https://unix.stackexchange.com/q/496497/108618) – Kamil Maciorowski Jul 24 '23 at 14:22

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