This article doesn't really focus on the details of the power, but I'll mention that the power requirements of Raspberry Pi 5 are a bit weird and this can have some implications when powering one from a limited current source.
Ideally the Pi5 wants 5V@5A, which is out of the capabilities of almost every USB PD supply and certainly not something that any iPad or any other computer can supply directly.
By default the firmware is configured for a 15W power budget so normally will work fine with a 5V@3A.
Only Thunderbolt iPads can supply this 15W; older USB-C ipads are limited to 7.5W and should not be used in this application without a power splitter. Pi zero 2W or similar would be a better fit if anyone wants to do this on older iPads or any other tablet that has limites current source capability.
Also this entire process probably also applies on lightning iOS devices using the camera connection kit and a power splitter as lightning can only source a couple of watts.
Comments
This article doesn't really focus on the details of the power, but I'll mention that the power requirements of Raspberry Pi 5 are a bit weird and this can have some implications when powering one from a limited current source.
Ideally the Pi5 wants 5V@5A, which is out of the capabilities of almost every USB PD supply and certainly not something that any iPad or any other computer can supply directly.
By default the firmware is configured for a 15W power budget so normally will work fine with a 5V@3A.
Only Thunderbolt iPads can supply this 15W; older USB-C ipads are limited to 7.5W and should not be used in this application without a power splitter. Pi zero 2W or similar would be a better fit if anyone wants to do this on older iPads or any other tablet that has limites current source capability.
Also this entire process probably also applies on lightning iOS devices using the camera connection kit and a power splitter as lightning can only source a couple of watts.