Lime Microsystems
Software Defined Radio

LimeNET Micro 2.0 Developer Edition

A highly flexible SDR system based on LimeSDR XTRX and Raspberry Pi CM4

$1,699 raised

of $1 goal

Funded!
0
updates
26
days left

Back this project to help bring it into existence.
Funding ends on Jul 18, 2024 at 04:59 PM PDT.

$799 - $11,900

View Purchasing Options

You'll be notified about news and stock updates for this project.

LimeNET Micro 2.0 DE (Developer Edition) is a modular radio platform that leverages the Raspberry Pi Compute Module 4 (CM4) and LimeSDR XTRX for their respective computing and RF features. It is based around the new LimePSB RPCM, a planar system — a.k.a. "main" — board, which is significantly more versatile than the previous version of LimeNET Micro, which was limited by its support for a less powerful compute module (CM3) and an integrated SISO radio.

LimeNET Micro 2.0 DE is comprised of LimePSB RPCM, Raspberry Pi CM4, and LimeSDR XTRX, which together form a complete baseband + RF solution and is an ideal tool for a wide range of wireless applications.

A deluxe version comes fully loaded with the Amarisoft 5G stack and core, two smartphones, and ten SIM cards, making it a turnkey private 5G network solution.

Alternatively, the LimePSB RPCM board can be populated with your choice of CM4 and mini PCIe card for custom configurations.

Bare LimePSB RPCM without a CM4 or mPCIe card
LimePSB RPCM with installed Raspberry Pi CM4 and LimeSDR XTRX

Features & Specifications

An integrated 2x2 MIMO front end module (FEM) provides higher output power using Qorvo driver amplifiers for a more comprehensive coverage range while keeping the frequency flexibility of the original LimeNET Micro. It also features integrated low noise amplifiers (LNAs) and SPDT switches that provide for both FDD and TDD modes of operation.

LimeNET Micro 2.0 DE is a LimePSB RPCM preinstalled with a Raspberry Pi CM4 and LimeSDR XTRX, all in an actively cooled acrylic enclosure

LimePSB RPCM Top Components

LimePSB RPCM Bottom Components

LimePSB RPCM User Interfaces

LimePSB RPCM Block Diagram

LimePSB RPCM Clock Diagram

LimePSB RPCM Power Diagram

LimePSB RPCM RF Front End Diagram

LimePSB RPCM USB Diagram

Support & Documentation

Manufacturing Plan

Our engineering team will be on site for manufacturing and final assembly of LimeNET Micro 2.0 DE. Being on site will allow us to adjust the production process very quickly and test the final product right away. As with our other products, LimeNET Micro 2.0 DE will be delivered to you in protective, informative, professionally designed packaging.

Fulfillment & Logistics

After completing production, we’ll send everything to Crowd Supply’s fulfillment partner, Mouser Electronics, who will distribute products to backers worldwide. You can learn more about Crowd Supply’s fulfillment service under Ordering, Paying, and Shipping in their guide.

Risks & Challenges

We’re well aware of the ongoing risks of electronics production and have planned accordingly. From finding reliable sources of components, to being on site for production, we’ve made every effort to ensure smooth delivery to backers. Should something nonetheless go wrong, we’re committed to communicate openly and honestly about what’s going on and what we’re doing to fix it. Though better than a few years ago, these are still turbulent times for hardware manufacturing and we appreciate the trust you put in us!

LimeNET Micro 2.0 Developer Edition is part of Qorvo RF Accelerator

Key Components

QPA9127 · high-linearity gain blocks

SPF5043Z · low-noise amplifier (LNA)
Maximizes performance in a small form factor.

In the Press

Hackster News

"Featuring a more powerful Compute Module and multiple input multiple output (MIMO) radio module, the LimeNET Micro 2.0 is a major upgrade."

Geeky Gadgets

"If you are working on a project that requires a powerful, flexible radio platform, you need something that can handle a variety of wireless tasks, from simple hobbyist projects to complex professional applications. Enter the LimeNET Micro 2.0..."

Myriad RF Blog

"The new LimeNET Micro 2.0 design brings increased performance, plus greater flexibility and upgrade potential thanks to a more modular approach..."


Ask a Question

Produced by Lime Microsystems in Guildford, England.

Sold and shipped by Crowd Supply.

LimePSB RPCM

The Lime Planar System Board for Raspberry Pi Compute Modules (LimePSB RPCM) is a carrier board for a single Raspberry Pi Compute Module 4 (CM4) or compatible boards and a single mPCIe card, such as a LimeSDR XTRX or LoRa card. The board includes an RF front end driver, clock network, SMA antenna connectors, power handling, and multiple host and peripheral connectivity options, making it the perfect development platform for CM4-based radio designs. Does NOT include Raspberry Pi CM4, LimeSDR XTRX, enclosure, cabling, antennas, or power supply.

$799 Free Worldwide Shipping

LimeNET Micro 2.0 DE

A LimePSB RPCM carrier board with LimeSDR XTRX and Raspberry Pi CM4 (with 32 GB flash + wireless + 8GB RAM) fully preinstalled in a custom acrylic enclosure with an integrated cooling fan. Does NOT include SMA antennas or power supply.

$1,699 Free Worldwide Shipping

LimeNET Micro 2.0 DE 5G Deluxe Kit

A LimePSB RPCM carrier board with LimeSDR XTRX and Raspberry Pi CM4 (with 32 GB flash + wireless + 8GB RAM) fully preinstalled in a custom acrylic enclosure with an integrated cooling fan. Includes SMA antennas, power supply, 5G stack and core from Amarisoft, two (2) 5G smartphones, and ten (10) SIM cards for a complete private network.

$11,900 Free Worldwide Shipping

LimeSDR XTRX

From the LimeSDR XTRX project.

Compatible with the mPCIe slot on the LimePSB RPCM carrier board.

$799 Free US Shipping / $18 Worldwide

12 VDC 36 W International Wall Mount AC Adapter

From the Crowd Supply Basics project.

Suitable for powering LimeNET Micro 2.0 DE.

A 12 V, 3 A (36 W) AC adapter with interchangeable plugs provided for the US, EU, AU, UK, plus a CCC-compliant plug - connecting via a 2.1 mm center-positive barrel jack.

$22 $8 US Shipping / $18 Worldwide

Raspberry Pi CM4 (32 GB, Wireless, 8 GB RAM)

From the Compute Module 4 project.

Other variants available on the Compute Module 4 project.

This CM4108032 varaint of the Raspberry Pi Compute Module 4 is a System on Module (SoM) containing an ARM quad-core Cortex-A72 processor, 8 GB RAM, ethernet, 2.4 and 5 GHz 802.11b/g/n/ac Wi-Fi, 32 eMMC storage, and supporting power circuitry.

$95 $8 US Shipping / $18 Worldwide

Raspberry Pi CM4 (32 GB, No Wireless, 8 GB RAM)

From the Compute Module 4 project.

Other variants available on the Compute Module 4 project.

This CM4008032 varaint of the Raspberry Pi Compute Module 4 is a System on Module (SoM) containing an ARM quad-core Cortex-A72 processor, 8 GB RAM, ethernet, 32 eMMC storage, and supporting power circuitry. Does not include wireless.

$90 $8 US Shipping / $18 Worldwide

4G/LTE External Antenna

From the Crowd Supply Basics project.

Abracon External Antennas exhibit low return loss characteristics, high gain, and Low Voltage Standing Ratio (VSWR). These external antennas are linearly polarized and come in a low profile package.

$12 $8 US Shipping / $18 Worldwide

Active GPS Antenna

From the Crowd Supply Basics project.

A low-noise active GPS antenna suited for the GPS L1 band. Accepts 3-5V DC and outputs RF via an SMA(m) connector. Optional adhesive mounting.

$11 $8 US Shipping / $18 Worldwide

U.FL-to-U.FL Coaxial RF Cable with Right-Angle Plug Connectors

From the Crowd Supply Basics project.

The following cables are recommended for connecting LimeSDR XTRX to LimePSB RPCM: three 50 mm, one 70 mm, one 150 mm

A single pliable RF coaxial cable with a low-profile, right-angle, plug-type U.FL connector on each end.

$5 $8 US Shipping / $18 Worldwide

About the Team

Lime Microsystems

Guildford, England  ·   limemicro.com  ·   myriadrf  ·   LimeMicro  ·   limemicro

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

Ebrahim Bushehri
 ebrahim24
Andrew Back
 9600
Zydrunas (Zack) Tamosevicius
 ztamosevicius
Karolis Kiela
 Karoliskiela
Aleksandr Vasjanov
Dovydas Rusinskas
Tomas Servenikas

See Also

Subscribe to the Crowd Supply newsletter, highlighting the latest creators and projects