Ah, OK - I've got you.

You also need to run the script once you have launched rtl_tcp using the command in step 3) below.

The simplest way to do this would be to add a step:

6) Sign in to rPi with a new terminal session, leaving the old one open for now. cd to the directory where you created the script and then run it using this command:

./rtl-robot (or whatever you called the script)

You could run the script from the same terminal that you launched rtl_tcp from if you used & to force rtl_tcp to detach from the console and run in the background.

I'll edit the comments on the script to make that a bit clearer...

Thanks!

Simon

----- Original Message ----- From: "Favati" smile_k@libero.it To: osmocom-sdr@lists.osmocom.org Sent: Saturday, 11 May, 2013 20:14:36 GMT +00:00 GMT Britain, Ireland, Portugal Subject: Re: Raspberry Pi based remote SDR head

Could you describe exactly the steps you have taken?

1) installed wiringpi (and tested as described on the developer site) 2) created your script 3) launched this command:

stdbuf --output=0 rtl_tcp -a 192.168.2.15 -p 1234 > rtl.data

4) used sdrsharp to connect to my raspberry (192.168.2.15, and it connect ok, i can use sdrsharp ok)

5) nothing is displayed on the console of my raspy except the first 2 lines of rtl_tcp output

The rtl_data is created ok and looking inside that file i can see the normal output of "rtl_tcp" (set freq blablablabla, etc...)

At the moment i've taken another approach...i've patched the rtl_tcp.c to set the gpio directly...i'll post my "project" asap somewhere...