UART communication problem - serial port monitor

please, please never ever again post pictures of text... Not only they are barely or not readable (esp on smartphones and small screens) nor usable directly for copy&paste but they use up lots of storage and internet bandwidth which contributes to polluting the planet.

➜ do your part and do yourself a favour and please read How to get the best out of this forum and modify your post accordingly (including code tags and necessary documentation for your ask).

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