It's a mechanical switch which is usually closed if an SD-card is inserted in the connector. It's used to detect the presence of the card.
Btw. another switch is the write-protect switch. This contact represents the position of the write-protect slider.
It's a mechanical switch which is usually closed if an SD-card is inserted in the connector. It's used to detect the presence of the card.
Btw. another switch is the write-protect switch. This contact represents the position of the write-protect slider.
Thank you very much.
Does that mean when we insert a SD card or Mini SD card then this pin will be low?
And then our host will detect the insertion of the external SD card?