Wiznet_5500_EVB_Pico2_E22P
On-board W5500 Ethernet + Ebyte E22P LoRa carrier board
RP2350 + W5500 + E22P-868M30S · low-cost Ethernet MQTT gateway
1. Overview
A custom PCB carrier board built around the WIZnet W5500-EVB-Pico2 (an RP2350 with an on-board W5500 Ethernet controller) and an Ebyte E22P LoRa module, in a single compact design for Meshtastic applications and a low-cost Ethernet MQTT gateway.
Key features
- WIZnet W5500-EVB-Pico2 — RP2350 (dual-core Cortex-M33 / RISC-V) with an on-board W5500 hardwired TCP/IP Ethernet controller (no external SPI Ethernet module required)
- WIZPoE-P1 — compact PoE module compliant with IEEE 802.3af, supporting Mode A and Mode B
- Ebyte E22P (868M30S) — SX1262 LoRa transceiver (868/900 MHz, 30 dBm) for long-range wireless communication
- BMP280 / BME280 sensor header (H1) — dedicated footprint for an I2C temperature & pressure sensor
- I2C expansion header (H3) and UART expansion header (H2) for additional peripherals
- On-board decoupling capacitors (100 µF and 10 µF) for power-supply filtering
2. PCB Design
2D Layout
3D Render
Assembled
3. Pin Mapping
W5500 Ethernet (SPI0) — on-board
| W5500 Pin | Pico 2 GPIO |
|---|---|
| MISO | GP16 |
| CS | GP17 |
| SCK | GP18 |
| MOSI | GP19 |
| RST | GP20 |
Ebyte E22P LoRa (SPI1)
| E22P Pin | Pico 2 GPIO |
|---|---|
| SCK | GP10 |
| MOSI | GP11 |
| MISO | GP12 |
| CS | GP13 |
| RST | GP15 |
| DIO1/IRQ | GP14 |
| BUSY | GP2 |
| RXEN | GP3 (held HIGH — LNA/PA enable) |
| TXEN | bridged from DIO2 on the module |
Expansion headers
| Header | Pins |
|---|---|
| BMP280 / BME280 sensor (H1) — I2C | +3.3V · GND · SCL · SDA |
| I2C expansion (H3) | +5V · +3.3V · SCL · SDA · GND |
| UART expansion (H2) | +5V · +3.3V · TX · RX · GND |
4. Components
| Component | Description | Link |
|---|---|---|
| WIZnet W5500-EVB-Pico2 | RP2350 microcontroller board with on-board W5500 Ethernet | Buy |
| WIZPoE-P1 | Compact PoE module compliant with IEEE 802.3af (Mode A and Mode B) | Buy |
| Ebyte E22P-868M30S | SX1262 LoRa transceiver module (30 dBm) | Buy |
| BMP280 / BME280 module | I2C temperature & pressure sensor (the BME280 adds humidity; pin-compatible) | Buy |
| Ceramic capacitors (100 µF / 10 µF) | Power-supply filtering | Buy |
| Pin headers | 2.54 mm male/female headers | Buy |
| PoE Injector 802.3af | 802.3af PoE injector | Buy |
5. Schematic
6. GitHub Repository
Full project source files including the PCB design, schematic and bill of materials are available on GitHub.
7. Firmware
Pre-built Meshtastic firmware for the WIZnet W5500-EVB-Pico2 + E22P hardware. This version includes the "Use with client.meshtastic.org" feature. Choose your installation method:
Method 1: Direct USB flash (UF2)
Hold the BOOTSEL button while connecting the board via USB, then drag-and-drop the UF2 file onto the RP2350 drive that appears.
Method 2: Ethernet OTA utility
Update an already-deployed node over the network using the Ethernet OTA utility. Download the BIN file and upload it through the utility.
8. Get One Assembled
Want one ready to go? We sell the fully assembled, flashed and tested board, shipped to your door.
Shipping and your email are collected securely at the payment step.
← Back to Projects