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Related Solutions

  • Counter Audio Capture & Analytics

    Fixed-point talk is turned into structured text on site, with audio kept local. For badges worn by staff on the move, see In-Person Conversation Intelligence.

  • On-Site Voice Control

    A voice entry point users can interrupt, added to existing equipment; recognition runs on a local host and works offline after setup.

  • Acoustic & Audio AI

    Capture clear audio with AI microphones, then transcribe, synthesize speech or run an LLM on a local box. Open reference designs work out of the box.

Products
›Raspberry Pi
›reRouter

reRouter

The Mini Router is pre-installed Seeed’s custom OpenWRT system, equipped with dual Gigabit Ethernet ports and dual USB 3.0 ports, as well as a Raspberry Pi Compute Module 4. The full system makes it suitable for soft router applications while keeping the hardware to a minimum.
  • Fast boot times and smooth overall experience
    Powered by Raspberry Pi Compute Module 4 with RAM and eMMC storage
  • Compact and highly integrated
    75x64x21mm in size, with dual Gigabit Ethernet ports and dual USB3.0 ports
  • Highly scalable with rich IO peripherals
    dual Gigabit Ethernet connectors, Micro-SD card slot, micro-HDMI interface, USB 3.0, MIPI CSI, MIPI DSI, etc.
  • Easy to deploy with stability
    DIN rail mount and keyhole slot allow you to hang it anywhere
  • Pre-installed OpenWRT firmware
    Out of the box, can easily implement software router applications
  • Customization Supported
    Contact edge@seeed.cc for your customization needs
Hardware Overview
reRouter CM4 hardware overview and port layout diagram
reRouter CM4 detailed specifications and interface description
Application
  • Software Router
  • IoT applications
  • Smart Home
  • Camera / Video-related Projects
Part List
Dual Gigabit Ethernet Carrier Board for Raspberry Pi CM41
Aluminum Case1
International Wall Adapter Power Supply 5VDC 4A – Type-C (with US/AU/UK/EU plugs)1
Product Selection
Product ModelSKUMemoryStorage
reRouter CM4 1432 110110110 4GB LPDDR4 32GB eMMC
reRouter CM4 102032 110110205 2GB LPDDR4 32GB eMMC

Carrier Board

SpecificationDetails
NetworkingDual Gigabit Ethernet Connectors
USB 3.0 to GbE
(Gigabit Ethernet Bridge)		Microchip's LAN7800
USB2 x USB 3.0 Ports
1 x USB 3.0 9-Pin Header
StorageMicro-SD Card Slot (load system Image for non-eMMC CM4 version)
Camera1 x MIPI CSI Connector
Display1 x MIPI DSI Connector
1 x Micro HDMI Connector
FPCInterface for I2C and SPI
External FanPower connector for fan
Power5V/3A using USB Type-C Port
LAN7800 Industrial
Temperature Range		-40°C to +85°C
Dimensions75x64x21mm
Weight43g

Compute Module 4

SpecificationreRouter CM4 1432reRouter CM4 102032
ProcessorBroadcom BCM2711 quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
Memory 4GB LPDDR4 2GB LPDDR4
Storage32GB eMMC
Connectivity2.4GHz and 5.0GHz IEEE 802.11b/g/n/ac Wi-Fi, Bluetooth 5.0, BLE with onboard and external antenna options
Onboard Gigabit Ethernet PHY supporting IEEE1588
1 × USB 2.0 interface
PCIe Gen 2 x1 interface
28 GPIO signals
SD card interface for SD card or external eMMC
VideoDual HDMI interface (up to 4Kp60 supported)
2-lane MIPI DSI display interface
2-lane MIPI CSI camera interface
4-lane MIPI DSI display interface
4-lane MIPI CSI camera interface
MultimediaH.265 (4Kp60 decode); H.264 (1080p60 decode, 1080p30 encode); OpenGL ES 3.0 graphics
Input power5V DC
Operating temperature0 to +80°C
Dimensions55 mm × 40 mm
Production lifetimeRaspberry Pi Compute Module 4 will remain in production until at least January 2028
Compliance Full list of local and regional product approvals
Product Design
  • Schematics
  • Microchip LAN7800 Datasheet
Other
  • Seeed's Raspberry Pi-based Success Cases
How to Build a Raspberry Pi Router – Step by Step Tutorial
This article is going to share exactly why you should consider building a custom Raspberry Pi Router – and more importantly, how!
How to use Home Assistant with a Seeed Mini Router (Installation, Configuration and Control)
This is a blog about using Mini Router running the Home Assistant software.
Low Consumption Öchìn CM4 Carrier Custom Board Applied In Robotics, Drones, Home Automation and IoT, Manufactured by Seeed Fusion
The possibilities offered for this type of application by a machine such as the CM4 module are remarkable and in fact opens a wide range of new scenarios that are truly amazing！
Introducing the Dual Gigabit Ethernet Carrier Board for Raspberry Pi CM4
In this article, the team at Seeed is proud to present the Dual Gigabit Ethernet Carrier Board for the newest Raspberry Pi compute module. Let's begin!
[Github] buildroot external tree for macsec router
buildroot external tree for macsec router running on Seeed Studio Dual Gigabit Ethernet Carrier Board for Raspberry Pi Compute Module 4
Getting Started with OpenWrt on Dual Gigabit Ethernet Carrier Board for Raspberry Pi CM4 and ODYSSEY - X86J4125
This wiki explains how to install OpenWrt on Dual Gigabit Ethernet Carrier Board for Raspberry Pi CM4 and ODYSSEY - X86J4125
Counter Audio Capture & Analytics
Directional Noise Suppression
On-Premise Real-Time ASR
Edge Privacy Masking

Counter Audio Capture & Analytics

Fixed-point talk is turned into structured text on site, with audio kept local. For badges worn by staff on the move, see In-Person Conversation Intelligence.

On-Site Voice Control
Far-Field Audio
Offline Voice LLM
Direct Device Control

On-Site Voice Control

A voice entry point users can interrupt, added to existing equipment; recognition runs on a local host and works offline after setup.

Acoustic & Audio AI
Mic Array
Edge ASR
Local LLM

Acoustic & Audio AI

Capture clear audio with AI microphones, then transcribe, synthesize speech or run an LLM on a local box. Open reference designs work out of the box.