In a minimal RS232 connection between the 8051 microcontroller (using a level converter) and another RS232 device, what is the minimum number of signal wires required for asynchronous serial communication?

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Physics · Microcontrollers

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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3 (Transmit, Receive and Ground)

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Answer 1

5 (Transmit, Receive, RTS, CTS and Ground)

Answer 2

3 (Transmit, Receive and Ground)

Answer 3

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Answer 4

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