Or, building on Peter's idea, consider using six each TI PCA9555. 16 inputs or outputs per IC, I2C interface, all can share the same I2C bus they are per-pin configurable. including generating an interrupt on state change of any or all I/O pins.
Or search on TI web site for bus extender PCA9555 Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers I/O data rates would be limited to what you can push through an I2C bus. --- Graham == On Monday, November 24, 2014 11:07:22 AM UTC-6, cre4tix wrote: > > Hello all ! > > What is the best way to play with 96 gpio on the beagle board black ? I > have not found cape to extend gpio ... > > I need to receive 80 contact closure. > > TIA > > cre4tix > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
