Wiznet makers

Overview

The RP2350-POE-ETH is a compact development board from Waveshare (Shenzhen, China) that puts a Raspberry Pi RP2350A microcontroller onto a board with a built-in RJ45 Ethernet port driven by WIZnet's W6300 hardwired TCP/IP controller. Power and networking can both arrive over a single Ethernet cable when the optional PoE module is fitted, or the board can run from USB Type-C. It targets small, wired IoT nodes where Wi-Fi is unwanted and a clean Ethernet uplink, with or without PoE, is the point.

What makes this board notable is the specific pairing: RP2350A + W6300 + optional 802.3af PoE on a plain GPIO-header form factor. WIZnet's own W6300-EVB-Pico2 and Waveshare's earlier RP2350 Ethernet boards used the W5500, or shipped without an advertised PoE option. This board brings the faster QSPI-interfaced W6300 and a low-cost PoE path together in one inexpensive package.

Why the W6300 matters here

The W6300 is WIZnet's "iEthernet" controller with a fully hardwired TCP/IP stack, so the RP2350 offloads the network stack to dedicated silicon instead of spending CPU cycles and RAM on software TCP/IP. Unlike the SPI-based W5500 used on many earlier RP2350 boards, the W6300 uses a QSPI interface for higher throughput (WIZnet has demonstrated the W6300 at roughly 80 Mbps in prior EVB coverage), while still supporting IPv4 and the familiar socket-register programming model. For a maker moving from a W5500 board, the concepts carry over; the ceiling is higher.

Key specifications

• MCU: Raspberry Pi RP2350A — dual-core Arm Cortex-M33 and dual-core Hazard3 RISC-V, up to 150 MHz (two cores active at a time: 2×Arm, 2×RISC-V, or 1+1)
• Memory / storage: 520 KB internal SRAM, 8 KB OTP, 16 Mbit (2 MB) SPI NOR flash
• Ethernet: 10/100 Mbps RJ45 via WIZnet W6300 hardwired TCP/IP controller (QSPI)
• PoE: 6-pin header for an optional PoE module; 802.3af when fitted
• USB: USB 1.1 Type-C for power, data, and programming
• GPIO: 2 × 16-pin headers, through-hole and castellated — up to 20 usable GPIO; 2× UART, 2× SPI, 2× I2C, 16× PWM, 4× 12-bit 500 ksps ADC, 3× PIO blocks (12 state machines), HSTX
• Misc: WS2812 RGB LED, Boot + Reset buttons, 3× SWD pads, on-chip temperature sensor
• Power: 5 V via USB-C, or optional PoE; 3.3 V LDO rated up to 800 mA
• Dimensions: PCB 63 × 21 mm (65.88 × 21 mm with USB-C and RJ45 connectors)
• Toolchains: C/C++, MicroPython, Arduino

Supported communication modes

The board and its examples cover TCP Server, TCP Client, UDP Server, and UDP Client modes out of the box, matching the standard WIZnet socket usage. Waveshare's GitHub repository includes a worked MQTT-over-Ethernet sample that reports battery information, provided in all three supported languages (C/C++, MicroPython, Arduino).

Version options

Waveshare sells the board in four variants. The base part number and the "-M" suffix control pre-soldered headers; the "-Kit" suffix bundles the PoE module. All four support PoE expansion — the non-Kit versions simply ship without the module.

Pricing and where to buy

• Waveshare store: US $13.99 – $18.99 across the four variants — https://www.waveshare.com/rp2350-poe-eth.htm
• AliExpress: approx. US $16.19 – $20.33
• Amazon: approx. US $21.11 – $27.99

Prices observed late July 2026 and will vary by variant and region; confirm on the vendor page before quoting.

Where it fits in the RP2350 + WIZnet family

This board slots into a growing line of RP2350 Ethernet boards. Compared with WIZnet's W6300-EVB-Pico2 (same W6300 controller, Pico form factor, no onboard PoE) and Waveshare's earlier RP2350-ETH / RP2350-MINI(ETH) boards (W5500-based), the RP2350-POE-ETH is the option to reach for when you specifically want W6300 throughput plus a cheap PoE path in a small GPIO-breakout board. For industrial I/O instead of raw GPIO, Waveshare's related RP2350-POE-ETH-8DI-8RO (8 digital inputs, 8 relays, DIN-rail, W5500) is a different product aimed at control-cabinet use, not the same board.

Value and limits

Value: Cheap wired-Ethernet node with a hardwired TCP/IP stack, a genuinely fast controller (W6300/QSPI), an optional single-cable PoE deployment, and first-class support across C/C++, MicroPython, and Arduino. The castellated edge lets it drop onto a carrier board for a product design.

Limits: Ethernet is 10/100 Mbps at the RJ45 (the W6300's higher internal throughput is not a gigabit port). PoE is an added-cost module, not onboard, and the base SKUs do not include it. Flash is 2 MB — ample for firmware, tight for large asset storage. There is no onboard wireless; this is deliberately a wired board.

Getting started

• Wiki: https://docs.waveshare.com/RP2350-POE-ETH
• Firmware & MQTT-over-Ethernet samples (GitHub): https://github.com/waveshareteam/RP2350-POE-ETH