jojopi wrote:If Pi3 may require a heatsink, then how does that work with HATs? Will there be cases and standoff kits to allow a HAT to rise above a heatsink?
As no-one has answered yet, I'll give you my experience with heatsinking the Pi2B (and before you lot start, mine DOES need it!
I have an expansion board on the GPIO header (not officially a HAT, but effectively the same), and this just
clears a heatsink measuring 10mm in height. Unless a HAT had components mounted on the underside, it wouldn't foul on a heatsink of this height, although a layer of insulating material between the two would be a good idea incase the HAT is physically leaned on and pushed onto the heatsink causing sparks to fly.
However, many heatsinks are much shallower than 10mm in height, so should give the additional clearance needed to avert causing a disastrous short circuit. I guess we'll need to wait for official feedback on whether the HAT specifications define a maximum protrusion distance for components on the underside of a HAT to have a definitive answer though. Whatever you do, don't panic. I'm sure the RPF will be on top of this very soon.