quick introduction to UART communication with example

This Video explains quickly how the UART communication protocol works and shows an example where an Arduino UNO and a USB to TTL module talks to one another.
Connections:
Arduino Uno, USB to Serial
TX (Pin D1) to RX
RX (Pin D0) to TX
GND to GND
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[@startobytes]

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[@nurnachman]

nice i learned!