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https://www.waveshare.com/wiki/RP2040-ETH
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🔬 WaveShare RP2040-ETH Technical Specifications

📋 Overview

The RP2040-ETH is a microcontroller board combining the Raspberry Pi RP2040 chip with integrated Ethernet capabilities via the CH9120 TCP/IP module.

⚙️ Core Specifications

Microcontroller

  • Chip: RP2040
  • Processor: Dual-core Arm Cortex M0+
  • Clock Speed: Up to 133 MHz (flexible)
  • Memory:
    • 264KB SRAM
    • 4MB onboard Flash
  • Temperature Sensor: Built-in

Networking

  • Ethernet Controller: CH9120 with integrated TCP/IP stack
  • Network Modes:
    • TCP Server
    • TCP Client
    • UDP Server
    • UDP Client
  • Configuration: Configurable IP, port, and mode settings

🔌 I/O and Interfaces

GPIO

  • Count: 14 multi-function GPIO pins
  • PWM Channels: 13
  • PIO State Machines: 8 programmable

Communication Interfaces

  • SPI: 1x
  • I2C: 2x
  • UART: 2x
  • USB: Type-C with drag-and-drop programming

Physical Design

  • Form Factor: Castellated module design
  • Integration: Easy PCB mounting and breadboard use

💻 Development Environment

Programming Languages

  • MicroPython: Full support
  • C/C++: Native development
  • Arduino IDE: Compatible

Development Tools

  • Raspberry Pi Pico SDK
  • VSCode integration
  • Thonny IDE support
  • Official WaveShare demos and documentation

Programming Features

  • USB drag-and-drop programming
  • Multiple development environment options
  • Extensive sample code library

🌐 Use Cases

  • IoT projects requiring network connectivity
  • Embedded web servers
  • Remote monitoring systems
  • Industrial automation with Ethernet
  • Data logging with network transmission

🔗 Connections to Other Research

Potential correlations with other interests

Related Technologies

  • Compare with ESP32 Ethernet solutions
  • Raspberry Pi Pico ecosystem
  • Industrial IoT platforms
  • Edge computing applications

Questions for Further Investigation

  • How does CH9120 TCP/IP stack compare to other solutions?
  • Power consumption vs. ESP32-based alternatives?
  • Real-world performance in industrial environments?
  • Integration possibilities with existing projects?

📚 Resources

Research Context: Evaluating for potential networking projects requiring reliable Ethernet connectivity in embedded systems.

Related: 04-Research/_Research Hub | 06-Resources/Tools & Methods/Embedded Development