I'd check /sys/class/gpio/gpio49/direction . . . william@beaglebone:~$ cat /sys/class/gpio//gpio49/direction in
Make sure its "out" After that, I'd start by disconnecting P9.23 from the circuit, then check with a volt meter that the pin isn't somehow damaged. P9.1 and P9.2 are both ground on that header. On Mon, Oct 24, 2016 at 5:50 PM, mzimmers <mzimm...@gmail.com> wrote: > Hi, Przemek - > > It's a Fairchild BS270: > > link on newark > <http://www.newark.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=15003&langId=-1&urlRequestType=Base&partNumber=33C9973&storeId=10194> > > I (obviously) need to learn more about this...is the information you ask > of in the data sheet? If so, I'll search for it. > > mz > > On Monday, October 24, 2016 at 6:44:59 PM UTC-6, Przemek Klosowski wrote: >> >> On Mon, Oct 24, 2016 at 8:33 PM, mzimmers <mzim...@gmail.com> wrote: >> >> > 2. What do you mean by "reverse logic?" That I've miswired my >> transistor? >> > Here's my wiring: >> > >> > drain comes in from LED >> > gate goes to P9, pin 23 (GPIO 49) >> > source comes from GND >> >> A word of caution--some MOSFETs start conducting between source and >> drain when you apply voltage to the the gate, and others work the >> other way. Which one do you have---what's the type? >> > -- > 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. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/6b6a7013-43d2-45de-9913-3fe539533273%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/6b6a7013-43d2-45de-9913-3fe539533273%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CALHSORo_QCpnmSNRZ3O8VBZoRCWiqLf-96Qghp%2BK1CPUCA3VvQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
