I think I've seen both eg the more typical 5 pin on most Cameras MP3 players etc and then the 4 pin that comes on the Pentax Optio S4 for example.

user behavior in terms of PIN choice has probably not changed much. The hardware is not much more than a Digispark board, a small ATtiny85-based board with built-in USB connector, and an adapter.

The Micro USB connector on Samsung devices starting with the Galaxy S3, which used 11 pins instead of the standard five. When using an MHL cable with a 5-pin Micro USB plug to send content to a ...