[MinnowBoard] 1.6V output on gpio pin

[Michael Jarvis]

Trevor, this book was very useful to me when I started tinkering with hardware several years ago. My career has been primarily in software development as well. 🙂

http://smile.amazon.com/Practical-Electronics-Inventors-Third-Scherz/dp/0071771336/

> On Feb 5, 2016, at 17:17, Trevor Woerner <twoerner at gmail.com> wrote:
> 
> Hi,
> 
> WARNING: sw person doing hardware! ;-)
> 
> I was playing around with my MinnowMax and Turbot boards and wanted to do the hardware "hello world!" involving flashing an LED via a GPIO.
> 
> # cd /sys/class/gpio
> # echo 338 > export
> # cd gpio338
> # echo out > direction
> # echo 1 > value
> 
> At first I didn't think it was working (which is why I tried on both my MinnowMax and Turbot boards). When I double-checked with my DMM I noticed that it was working, but the voltage was really low, roughly 1.6V.
> 
> Is there something I'm doing wrong that I'm not getting 3.3V (or 5V)?
> 
> Best regards,
>    Trevor
> _______________________________________________
> elinux-MinnowBoard mailing list
> elinux-MinnowBoard at lists.elinux.org
> http://lists.elinux.org/mailman/listinfo/elinux-minnowboard