What is the function of the diode received by the serial port?
Enrico 게시 날짜 November 5, 2020
Reverse cut off to prevent backflow.
Fabrizio 게시 날짜 November 5, 2020
This feels like a potential conversion effect.
Robinson 게시 날짜 November 5, 2020
5V and 3.3V level conversion.
West 게시 날짜 November 5, 2020
OPEN DRAIN Potential conversion.