I would like to know what is the GPIO4 if Raspberry Pi used for?
Is it used or just blocked?
if it is not used by RTC HAT(ds1307), can I use it for GPIO purpose?
Hi there~
For RTC HAT(ds1307) pin map, please refer to below picture. thanks.
I would like to know what is the GPIO4 if Raspberry Pi used for?
Is it used or just blocked?
if it is not used by RTC HAT(ds1307), can I use it for GPIO purpose?
Hi there~
For RTC HAT(ds1307) pin map, please refer to below picture. thanks.