Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board). Don't connect these pins directly to an RS232 serial port; they ...
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Mar 14, 2018 · Hi guys. Im wondering if someone can please help me. Can i connect directly to an serial device on tx and rx pins of arduino?
Plug the RS232 shield onto a Arduino microcontroller, connect the DB9 pin male of USB-RS232 converter to RS232 shield's DB9 pin female. Then download the sample ...