Adding GPS to Raspberry Pi running PiAware / Dump1090?

[k6rtm]

@JonAdams

I did some searching through the forums but found nothing concrete. Here’s my situation: I already have the RaspPi on the roof with its USB SDR dongle and connected to the 1090 MHz antenna. I have a USB GPS dongle and nice external GPS antenna as well, and would like to be able to monitor the GPS constellation from the house. Is there a way to add the GPS via a USB port and have the data available not only to precisely establish the ADS-B station location but also for me to use the GPS for other purposes (mostly statistics), perhaps through a network port? I am novice enough with the RaspPi to not know whether I can run other code simultaneously with the PiAware / Dump1090.

Any ideas would be helpful.

Cheers and 73 - Jon N7UV

Jon–

using GPSD will get you basic GPS location and timing. You can also use GPS to run NTP, giving you more accurate timing. That takes extra work. See for example:

http://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html#user-mode

which is the best I’ve found so far and walks through things in detail.

Note that the latest and greatest kernel, 3.18, introduces dev_tree, which changes (some might say screws up) how software interacts with various interfaces such as i2c, gpio, and the like.

having something like dump1090 automagically detect the shared memory segments updated by GPSD and dealing with location information would be interesting to see…

cheers and 73

bob k6rtm