Hi folks,
I've been messing around with rtl_tcp and an RTL2832 device on a Raspberry Pi and want
to add a bank of front end filters and a LNA that can be controlled by the GPIO.
I want to allow manual control of the signal path via a web page hosted on the Pi, but
also want to be able to have the filters selected automatically based on the frequency
that the RTL device is tuned to.
I noticed that rtl_tcp helpfully echos the frequency changes to the console, so I wrote a
simple shell script to gather this data and control the GPIO.
Somebody may have already done this and there is probably a better way to achieve it but,
if this would be of any use to you, please feel free to copy and use as you wish.
http://www.purpleplanet.org/?q=rtl-robot
Cheers,
Simon