Unicorn pHAT & free GPIOs

Hi all,

I know that Unicorn Phat uses GPIO 18, so I would understand if I can use other GPIOs for other scope (for example to address a buzzer).


You can indeed use the other pins for extra hardware. The only real limitation is on the amount to of current your additional devices draw, since the unicorn phat can be quite power hungry. That doesn’t take away from the fact that the unused GPIO pins are available for use.


thanks for your answare; my scope is only address one buzzer, so i think that I will not have problems about your concern.

Thanks again