You can probably use a voltage divider to get from 5V to 3.3V. And a transistor to get from 3.3V to 5V.
On Thu, May 15, 2014 at 1:30 PM, Aswin <[email protected]> wrote: > Hi, > > I have a board consisting of PIC micro, ADC, DACs etc running on 5V and > need to interface the microcontroller with BBB via UART. For 5V-3.3V > interfacing, I plan to use this circuit: > http://s11.postimg.org/8q2fddr3n/Capture.png > The board gets rectified supply from a transformer. Is it safe to connect > the ground terminals of the two devices directly? > > > -- > 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. > -- 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.
