LimeSDR Mini

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Nov 10, 2017

LimeSDR Mini, UDOO x86, and gr-fosphor Demo

The UDOO x86 is a smart little single board computer that is packed with features. The Advanced Plus version used in this demo integrates a quad-core 2.4 GHz processor with 4 GB DDR3 RAM, 32 GB eMMC storage (with support for SATA, M.2, and microSD), Gigabit Ethernet, 3 x USB 3.0, HDMI, 2 x miniDP++, and an Arduino-compatible MCU with a bunch of GPIO.

What’s particularly interesting for our use case is that the UDOO x86 board also has Intel HD 400 graphics which are supported by the Intel OpenCL SDK, meaning that we can use it with the immensely cool fosphor block for GNU Radio to provide an RTSA-like (real-time spectrum analyser) display. Unfortunately, fosphor use is not possible with many SBCs since it requires OpenCL-capable hardware for accelerating DSP functions and OpenGL for graphics display.

In the video below, I run up the osmocom_fft application in fosphor mode and give a quick demo showing some 433 MHz remote and 2.4 GHz Wi-Fi signals being displayed. While limited signals were available to show due to the small antennas attached and the workshop being something of a Faraday cage, it’s easy to see how this hardware combination could be put to use in creating an incredibly useful lab tool at a very low cost, with no shortage of other potential uses also.

Andrew and the LimeSDR Mini Team

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$139

LimeSDR Mini

The LimeSDR Mini is the perfect way to start experimenting with and building your own wireless networks, protocols, and testers. Save $20 off the retail price.


$299

LimeSDR Mini with Aluminum Case

This custom-made aluminum case comes with a LimeSDR Mini and two antennas. The case not only keeps your LimeSDR Mini safe, but it also helps reduce noise interference. Perfect to slip into your pocket for all your on-the-go wireless adventures.


$299

LMS8001 Companion

This highly integrated, four-channel frequency-shifter can be used with all variants of the LimeSDR - from Mini and USB, to PCIe and QPCIe - to extend their frequency coverage up to 10 GHz.


$40

Acrylic Case

Keep your LimeSDR Mini safe in this custom acrylic case.


$40

Two Antennas

A pair of omni-directional antennas with SMA connectors, optimized for frequency ranges of 800-960 MHz, 1710-2170 MHz, and 2400-2700 MHz.

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Credits

Lime Microsystems

Working toward the democratization of wireless communication through an open source ideology.


Ebrahim Bushehri

Jessica Gillingham

Andrew Back

Zack Tamosevicius

Richard Jonaitis

Josh Blum

Lexi Hatziharalambous

Karolis Kiela

Andy Chang

Ernie Shih

Ignas Skudrickas

Jurij Francuzov

Chris Holgate

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