Im having an issue enabling input_pullup on IO7-0 and I might be misunderstanding the datasheet for SX1509 however looking at the code for pinDir it only seems to handle REG_DIR_B which is IO15-8.
It also looks like readPin and writePin only ever write to B registers.
Im having an issue enabling input_pullup on IO7-0 and I might be misunderstanding the datasheet for SX1509 however looking at the code for pinDir it only seems to handle REG_DIR_B which is IO15-8.
It also looks like readPin and writePin only ever write to B registers.