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Sep 15, 2016

Second Design Competition

Encouraged by the strength of proposals in the LimeSDR early access competition and keen to see what projects the community might build that make use of the FPGA, we’ve decided to run a second competition where this time the focus is putting the LimeSDR’s Altera Cyclone IV to good use.

Please note that this competition is open to everyone — whether you backed the crowdfunding campaign or not! — and while we’d obviously like to see proposals for FPGA designs that would prove useful with an SDR platform, the scope is by no means limited to DSP. For example, proposals for processor and SoC implementations that might add some new capability to LimeSDR, or perhaps even mean that it could operated standalone, would also be very much welcomed.

As with the previous competition we’re not just looking for a great idea, but some evidence that you have the ability to see the project through to its completion. And with this in mind we’ve enlisted the help of members of the Free and Open Source Silicon Foundation to assist when it comes to judging. While we didn’t stipulate this with the previous competition, we’re also looking for reassurance that the project will be published under a recognised open source licence.

To enter please send an e-mail to and include the following:

  • Summary of the proposed project and noting which licence(s) will be used.
  • Link to an existing FPGA project on GitHub or similar to which you have contributed.

The competition closes at 09:00 UTC on Friday 30th September. Following which the LimeSDR team, together with FOSSi Foundation, will review all the entries and pick the one deemed the best, based on a combination of the proposed application and demonstrable digital design experience.

There is only one prize and the winner will receive a LimeSDR board + acrylic case.

Please check out the Myriad RF website for further details on useful technical details plus terms and conditions.

Good luck,

Andrew and the LimesSDR Team

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Jun 21 2016

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The LimeSDR is based on Lime Microsystem’s latest generation of field programmable RF transceiver technology, combined with FPGA and microcontroller chipsets. These connect to a computer via USB3. LimeSDR then delivers the wireless data and the CPU provides the computing power required to process the incoming signals, and to generate the data to be transmitted by the LimeSDR to all other devices.


Acrylic Case

A layered acrylic case to protect your LimeSDR. Can be used with either USB Type A or micro USB Type B. Antenna not included - separate purchase available.


LimeSDR with Aluminum Kit

Start developing apps based on Lime Microsystem’s latest generation of field programmable RF transceiver technology. This board comes with fancy aluminum casing. The board will be delivered with turnkey support for a diverse range of SDR ecosystem software, a powerful API and rapid prototyping environment. All the boards in this category will come with a fancy Aluminum casing coated with high quality material, cables, and antennas for a quick set up.


Four Antenna + Cable Pairs

Omni-directional antenna set, covering frequency ranges 800-960 MHz, 1710-2170 MHz, and 2400-2700 MHz. Includes U.FL to SMA cables.


GPIO Board

This stackable expansion board for the LimeSDR provides individually settable, bi-directional level-shifted I/O for FPGA GPIO 0-7. Each I/O has a high-voltage and power Darlington drive stage suitable for inductive loads, such as coaxial relays. LimeSDR not included.


Hacker Case

This custom acrylic case accommodates both a LimeSDR and a GPIO Board, and includes SMA connectors for all RF ports, two SMA connectors for clock I/O, and a 40 mm cooling fan. LimeSDR and GPIO Board not included.

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