USRPs have a feature that will toggle GPIOs based on their Tx/Rx state. Your device (if it's not a USRP) might have something similar.
Cheers, M On 11/28/2016 03:11 PM, Dan CaJacob wrote: > This is possible. You'd write a custom block to do this. You could > even do a simple POC with a python block, though it wouldn't be very > fast for T/R functionality. > > On Mon, Nov 28, 2016 at 3:08 PM Bob Mattaliano <n6r...@gmail.com > <mailto:n6r...@gmail.com>> wrote: > > Hi, > > Pretty new to GNUradio, GRC and Linux. Does anyone have experience with > or know if possible to create a flow graph or block to switch a USB > relay (as in the kind used for home automation)? > > What I am interested in is a block or flowgraph which examines output > which also goes to the the monitor window. If a specific string is not > observed, a signal will be sent to switch the relay for a defined > period. The goal is some sort of automated antenna polarity switching > depending on what is (or is not) received. > > Suggestions welcome. > > Thanks, > > Bob > N6RFM > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- > Very Respectfully, > > Dan CaJacob > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio