by Lime Microsystems

Flexible, next-generation, open source software-defined radio

View all updates May 23, 2017

BT and EE LimeSDR Hackathon and LimeNET Launch

When EE, a tier-1 network operator, decided to back the LimeSDR crowdfunding campaign, this was a clear indication of the scale of the opportunity at hand. And not simply for operators to reduce costs and extend coverage, but for wireless innovation to be democratised and the marketplace opened up to companies developing ground-breaking technology that will underpin new services.

Lime Micro are now pleased to announce that in partnership with British Telecom (BT) / EE, we are launching a competition to develop compelling prototypes and demonstrations using the LimeSDR kit. The competition is split into three categories:

  1. Best implementation of an existing feature/solution
  2. Best application of LimeSDR development kits to solve an existing problem (see scenario list)
  3. Most imaginative and effective use of the programmable features of the LimeSDR

For the second category, the scenarios are:

  • Disaster recovery
  • Remote connectivity – “last mile” innovation
  • Indoor enhancements
  • Enterprise
  • Entertainment
  • Other

The competition will run throughout June, July, and August, giving you time to develop your entry, and culminating in a ‘hack weekend’ 1st - 3rd September in London. If you are not based in the UK or cannot travel to London, we will enable remote participation.

The outcomes of the competition include:

  • BT will write up the event in a white paper, describing how software-definable radio can impact future network and proposition development for mobile operators. This will include examples from notable entrants, as well as a write up of all entries invited to be finalists.
  • BT will fast-track one or more finalists in each category through the Facebook TIP Ecosystem Acceleration Centre.
  • Where appropriate, BT will introduce participants to the Scottish Innovation Programme.

To register for more information and details on how to enter, please visit the hackathon page. There will be multiple entry deadlines, the first of which is on the 9th June 2017 for those who already have an application in mind.

Next Batch of LimeSDRs on the Way

The next batch of roughly 1,000 LimeSDR boards are currently en route to the UK for final testing. From there, they will be priority shipped to Crowd Supply’s warehouse for distribution to all remaining backers. Acrylic cases and antenna + cable sets are already at Crowd Supply’s warehouse. We anticipate fulfilling nearly all remaining orders in early June. This is about two weeks behind our original schedule due to a brief part shortage. The LimeSDR with Aluminum Kit and LimeSDR PCIe boards will be following shortly. You can see the most up-to-date delivery estimate of your order by logging in to your Crowd Supply account. You can also find out more about checking the status of your shipment in The Crowd Supply Guide.

LimeNET Launch!

We just launched a new crowdfunding campaign for LimeNET, a standardized line of hardware specifically for use with LimeSDR. From the LimeNET project page:

[LimeNET] offers the community a line of pre-qualified hardware with integrated LimeSDR technology. There are three main LimeNET hardware stacks: Mini, Enterprise, and Base Station - all of them are pre-qualified to work with the recently announced Ubuntu App Stores, so you can easily find, share, and publish apps specifically written with LimeSDR technology in mind.

If you already have a LimeSDR, you can pick up some powerful hardware to make it even better. If you don’t have a LimeSDR, there are discounted bundles to get you up and running quickly.

Finally, the LimeNET campaign introduces a new member of the LimeSDR family: LimeSDR QPCIe, a PCIe board with two LMS7002 transceiver chips that allow for 4x4 MIMO operation.

Please checkout the new LimeNET campaign and help open SDR technology evolve to the next level!

Andrew and the LimeSDR Team

$3,446,721 raised

of $500,000 goal

689% Funded! Order Below

Product Choices


LimeSDR USB Type-A

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 USB 3 with a Type-A connector. 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. Antenna not included - separate purchase available.


Lime AC Tetra Case

From the Lime AC Case project.

An aluminum case for LimeSDR USB Type-A, with one fan and 12 U.FL-to-SMA cables. This case allows for all on-board RF and CLK lines to be externally 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.


Ultimate LimeSDR With PCIe Interface

Start developing apps based on Lime Microsystem’s latest generation of field programmable RF transceiver technology. 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 PCIe interface, cables and Antennas for a quick set up.


Multi-band 4G/3G/2G Monopole Antenna

From the Crowd Supply Basics project.

Use one antenna for each of LimeSDR's four channels. Connect each antenna to the LimeSDR using a U.FL-to-SMA cable.

A TG.09 4G/3G/2G cellular hinged SMA(M) mount monopole antenna.


U.FL-to-SMA Cable

From the Crowd Supply Basics project.

Use one cable for each of LimeSDR's four channels. The 100 mm version works well with the Acrylic Case.

A Hirose U.FL to SMA (jack) bulkhead straight connector with a 1.32 mm diameter cable. Less than -2 dB cable insertion loss up to 6 GHz. Both connectors are gold-plated brass and the cable conductor is silver-coated copper.


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, a GPIO Board or LMS8001 Companion, together with SMA connectors for all RF ports and clock I/O. A 40 mm cooling fan is included. LimeSDR, GPIO Board/LMS8001 Companion, and SMA connectors are not included.


Lime Microsystems

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

Jessica Gillingham

Christy Chuang

Ebrahim Bushehri

Andrew Back

Zack Tamosevicius

Richard Jonaitis

Josh Blum

Lexi Hatziharalambous

Karolis Kiela

Andy Chang

ASE Group

IC manufacturer

See Also

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