Hi John! As Przemek mentioned, a simple voltage divider can scale the input voltage. Additionaly I use a LED (orange color) between the ADC input and ground in order to block overvoltage. (The LED starts to light up at 1V5 and consumes full power at 1V8. 1 / 6 of the ADC resolution get lost (is less accurate), but the burning LED as indicatior is a nice side effect.)
Regarding software you should have a look at libpruio <http://hackaday.com/2015/02/16/library-upgrade-to-pru-gives-fast-io-on-beaglebone/#comments> . BR -- 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.
