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LimeNET Micro 2.0 Developer Edition

by: May 20,2024 430 Views 0 Comments Posted in Engineering Technical

LimeNET Micro 2.0 DE (Developer Edition) combines the Raspberry Pi Compute Module 4 (CM4) and LimeSDR XTRX to achieve their respective computing and RF functionalities, making it a modular wireless radio platform. Based on the new LimePSB RPCM, LimeNET Micro 2.0 DE is a flat system (also known as the "main" board). In comparison to its previous versions, which were limited by their support for a less powerful compute module (CM3) and an integrated SISO radio, the new version boasts greater versatility.

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

Features & Specifications

LimePSB RPCM provides access to all of the connectivity and functionality of the CM4 and LimeSDR XTRX boards at its heart. That includes:

  • USB 2.0 Type-C socket (boot and power delivery)
  • Dual USB 2.0 Type-A sockets (downstream ports) or a front-panel USB 2.0 header (unpopulated)
  • Gigabit Ethernet jack with PoE support
  • Mini PCIe x1 Gen 2 (5 Gbps)
  • 2x HDMI 2.0 receptacles (up to 4K 60P supported)
  • 2x 15-pin FPC connectors for MIPI DSI display and CSI camera
  • 3.5 mm, 4-pin jack for analog audio and composite video
  • MicroSD card slot
  • NanoSIM socket
  • Coaxial RF (4x SMA female + 4x U.FL female) connectors for RF frontend
  • Coaxial pass-through U.FL to external SMA connector
  • 20-pin Raspberry Pi CM4 GPIO header (3.3 V)
  • 14-pin Raspberry Pi CM4 SYS header
  • 5-pin front display connector (power, I²C, button)
  • Raspberry Pi CM4 UART0 header (unpopulated)
  • 2-pin and 4-pin fan connector at 5 V (default), 3.3 V, or VCC_INT voltage

By integrating Qorvo driver amplifiers, the 2x2 MIMO front-end module (FEM) can provide higher output power, enabling more extensive coverage while maintaining the original LimeNET Micro's frequency flexibility. Additionally, it features integrated low-noise amplifiers (LNA) and SPDT switches, offering both FDD and TDD operation modes.

This project is going to crowdfund on CrowdSupply, check LimeNET Micro 2.0 Developer Edition for more info and welcome to support it if you are interested.

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