Acessu00e0rio to conexu00e7o to an interface of an electrical device eletru00e2nico portu00c1til, method for determining whether a key is actuated in a acessu00e0rio, device eletru00e2nico portu00c1til, and the product of program of computau00c7u00e7o

摘要

Acessu00e0rio to conexu00e7o to an interface of an electrical device eletru00e2nico portu00c1til, method for determining whether a key is actuated in a acessu00e0rio, device eletru00e2nico portu00c1til, and product computau00c7u00e7o program.The invention relates to an accessory (18) for connection to an electrical interface (16) of a portable electronic device (10), which interface includes a pair of connecting points providers of polarizing voltage including a first connection point (42) and a second section of the cone Xu00e3o (44) to polarize an element signal provider (22) that may be provided in the accessory.The accessory includes a first electrical branch including a first element voltage divider (R1) and a first key (32) that can be actuated mechanically.The branch has a first end being connected to a connection point (42) in the pair and a second end to be connected to another connection point (46) for changing the voltage level of the connection point connected to the first end to a certain voltage level when the first RA key connects the first element voltage divider and this connection point.