A later build could be used and new features are being added regularly, so a later build may be a good choice. Build 68 of the DragonBoard 820c was used and can be found on the 96boards web site.I even added some small heat sinks onto the EMI shield just to keep the Target running nice and cool. It's highly recommended to have a fan blowing over the Target. See an actual photo of my demo setup below: Information on the DragonBoard 820c can be found tbd.
#ICECAST LOCAL NETWORK NAT SERIAL#
Information on the UART Serial Mezzanine can be found here.A high level view of the demo setup is shown in the picture below. It then leverages a raw audio streaming output feature of Gqrx, transcodes this to Ogg using VLC, and sends it to IceCast, an open source streaming media server application (also running on the Target), creating a streaming radio server that can stream the radio frequencies being played to multiple client computers over the network. The good news is these are only $20! The Gqrx open source application connects to the dongle and decodes a large range of the radio spectrum (from 500 KHz to 1.7 GHz) including FSRS, Amature Radio bands, FM Radio, National Weather frequencies, Air Traffic Control, and more. This demo uses an RTL-SDR USB audio dongle based on the RTL2832U chipset. It does not go through local firewall and expose itself on the web, but this would be something that could be done with minor enhancements. Note that it is configured to run only on the local network. This is primarily an instructional repo that outlines the steps to integrate IceCast and Gqrx on DragonBoards 820c (herein referred to interchangably with "the target") along with a RTL-SDR USB dongle in creating a streaming SDR.
0 kommentar(er)
