new pkm ?

04-Research/Tech Specs/WaveShareRP2040-ETH/RP2040-ETH Overview.md

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+---
+created: 2025-07-27
+tags: [research, tech-specs, RP2040, microcontroller, ethernet]
+source: https://www.waveshare.com/wiki/RP2040-ETH
+domains: [embedded-systems, networking, iot]
+---
+
+# 🔬 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
+- **Official Wiki**: https://www.waveshare.com/wiki/RP2040-ETH
+- **Development Tools**: Raspberry Pi Pico SDK
+- **Sample Code**: WaveShare official demos
+
+---
+**Research Context**: Evaluating for potential networking projects requiring reliable Ethernet connectivity in embedded systems.
+
+Related: [[04-Research/_Research Hub|Research Hub]] | [[06-Resources/Tools & Methods/Embedded Development]]