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The role of the D2 diode.

Hardware design
November 05, 2020 by Gaby 1467

What is the function of the diode received by the serial port?

QQ图片20180316180210.png

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Enrico Posted on November 5, 2020

Reverse cut off to prevent backflow.

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Fabrizio Posted on November 5, 2020

This feels like a potential conversion effect.

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Robinson Posted on November 5, 2020

5V and 3.3V level conversion.

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West Posted on November 5, 2020

OPEN DRAIN Potential conversion.

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