Because it seems (from the documentation that I have read) that you can't do much without one.
Where can I go for detailed technical information? I vaguely know what a GPIO is, but I don't know what it can do, or what I can do with it. How do I branch out an I2C channel to control or access multiple relays? How can I arrange the I/O so that I generate an interrupt when a relay closes (like when the ridge vent completely opens and closes a limit switch so I need to turn off power to the motor). Where can I find the information to learn this myself? On Fri, Sep 5, 2014 at 3:59 AM, TJF <[email protected]> wrote: > Why do you think you'll need any cape? > > BBB has more then 15 free GPIOs and 7 analog inputs. You can simply build > your prototype board to adjust the voltages (GPIO @ 3.3V, ADC @ 1.8 V) and > feed the signals to the header pins. > -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
