The MeshPoE-S3 is a universal mesh node designed for use in LoRA mesh networks such as Reticulum, Meshtastic, and MeshCore. It is mostly designed for stationary deployment and PoE power.

Based on the WaveShare ESP32-S3 ETH Development Board
LoRA modules: EByte E22-series

Key features:

Compact form factor** suitable for outdoor mesh nodes
Power-over-Ethernet (PoE)** support for convenient outdoor or roof deployment
Ethernet connectivity** for reliable wired networking
GPIO headers** for easy customization and expandability
Optional DS3231MZ+ RTC for timekeeping
Optional I2C environment sensor support (BME280, BME680, etc)

This repository contains the KiCad project files, PCB schematics, board images, Gerbers for fabrication. You are welcome to alter the design to fit your requirements.

Project Structure

MeshPoE-S3/
├── KiCad/
│ ├── MeshPoE-S3.kicad_pcb     # PCB layout
│ ├── MeshPoE-S3.kicad_prl     # PCB plot file
│ ├── MeshPoE-S3.kicad_pro     # Project file
│ └── MeshPoE-S3.kicad_sch     # Schematic
├── Images/
│ ├── MeshPoE-S3-Front.png     # Front layer image
│ ├── MeshPoE-S3-Back.png      # Back layer image
│ └── MeshPoE-S3-Schematic.png # Schematic overview
├── Gerbers/
│ └── Gerbers-MeshPoE-S3.zip   # Exported Gerbers for fabrication
└── README.md                  # This file

Images


Front View	Back View

Pin Assignments

LoRa Module

I2C

Other

Signal	GPIO
CS(NSS)	16
SCLK(SCK)	18
MISO	3
MOSI	15
BUSY	1
RST	2
DIO(IRQ)	0
TXEN	34
RXEN	35

Signal	GPIO
SCL	17
SDA	21

Function	GPIO
User Button	36

Schematic

Bill Of Materials

🔳Modules

⚡Capacitors

Ref	Qty	Part	Description / Notes	Footprint
U1	1	ESP32-S3-ETH	MCU module	ESP32-S3-ETH
U2	1	E22-900M30S	LoRa module	E22-900M30S
U3	1	DS3231MZ+	RTC	SOIC-8
SSD1306 OLED	1		OLED display	HN1x4

Ref	Qty	Value	Notes	Footprint
C1,C2,C4,C5,C6,C9	2	100nF	Decoupling	1206
C3	1	470nF	Bulk	1206
C7,C8	2	TMCMB1C476MTRF	47µF tantalum/polymer	1206

🧲Inductors

🔩Resistors

🔘Switches

🔗Connectors

Ref	Qty	Value	Footprint
L1	1	15µH	1210

Ref	Qty	Value	Footprint
R1	1	10k	1206

Ref	Qty	Part	Footprint
S1	1	SPST Push Button	6x6x5mm

Ref	Qty	Part	Description
J1, J2	2	61302011821	1x20 2.54mm pin header

License

This project is licensed under Creative Commons Attribution (CC BY). You may share and adapt the material as long as appropriate credit is given.