On Fri, 9 Oct 2015 12:58:10 -0700 (PDT), you wrote: > > >Thanks, so it basically seems there is not a way of getting a pulse of 5V >without using a transistor. Oh well.
The I/O on a 3.3 volt processor goes between 0 and 3.3 volts. To get any other (larger) voltage, you'll need at least a transistor. Harvey > >On Friday, October 9, 2015 at 2:44:38 PM UTC-4, TJF wrote: >> >> The CPU on BBB is powered by 3V3. This means all digital output (GPIO, >> PWM, ...) will be at 3V3 as well. >> >> In order to get a 5V pulse train, you'll need an external driver. I use >> darlington arrays for that purpose, like ULN2804 >> <http://html.alldatasheet.com/html-pdf/55062/ALLEGRO/ULN2804/246/1/ULN2804.html> >> . >> >> 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.
