Block for serial output in GNURadio/GRC -

i working on project involves gnu radio/grc , not familiar software. trying output data serial port in gnu radio using block, have not found way so.

i wondering if there pre-defined block can use put information serial port (usb on raspberry pi 3), or if had create own block. , if had create own block, code like.

i have been able write data file using file sink make sure getting data, , wondering if fix simple changing file sink serial port sink. see picture below:

http://imgur.com/a/bdamz

i did research , found github repo looks need -- unfortunately, repository links no longer there. did mention using pyserial, believe meant creating own block in python. link repo below:

https://github.com/jmalsbury/gr-pyserial

… wondering if fix simple changing file sink serial port sink.

yes! or no, it's easier:

so, in fact, use file sink write e.g. /dev/ttys0 (or /dev/ttyusb0, or whatever device name of serial port), you'd have set serial port work want separately first. way of doing using stty, e.g.

stty -f /dev/ttys0 115200 

prior running flow graph.

note practically in flow graph point points not being sufficiently proficient gnu radio exchange data. can't cover here, please read official guided tutorials, but:

• in flow graph yours, io inherently rate-limiting element, must not use "throttle". throttle tool avoid flowgraph consuming cpu (and slow down simulations)
• giving files .grc ending bad practice, ending reserved gnu radio flow graphs.
• giving .txt ending plain misleading, since there's no text involved whatsoever. "file format" (i wouldn't call format) plain binary numbers, computer handles them; not decimal ascii representations of these floating point binary numbers

i did research , found github repo looks need -- unfortunately, repository links no longer there. did mention using pyserial, believe meant creating own block in python. link repo below:

don't know you're referring to, https://github.com/jmalsbury/gr-pyserial existing!