MeshAdventurer-S3

Project Name: MeshAdventurer-S3
Author: Nickie Deuxyeux
Date: 2026-03-19
License: Creative Commons (CC BY)

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Description

The MeshAdventurer-S3 is a universal mesh radio designed for use in LoRA mesh networks such as Reticulum, Meshtastic, and MeshCore. It is inspired by MeshAdventurer project by Chris Myers.

• Based on the widely available ESP32-S3-DevKit-C clone board
• LoRA modules: EByte E22-series and EByte E22P-series

Key features:

• **Fully featured for all popular mesh networks
• **Wide input voltage support for convenient mobile usage
• **GPIO headers for easy customization and expandability
• **Optional DS3231 RTC for timekeeping
• **Optional I²C environment sensor support (BME280, BME680, etc)
• **Optional ATGM336H GNSS receiver support
• **Optional EC11 Rotary Encoder support

This repository contains the KiCad project files, PCB schematics, board images, Gerbers for fabrication. A case design is also available as a Fusion 360 project and a set of STL files for 3D printing. You are welcome to alter the design to fit your requirements.

Project Structure

MeshAdventurer-S3/
├── Case/
│ ├── STL/                            # Case part files
│ ├── MeshAdventurer-S3.f3d           # Fusion 360 Project
├── KiCad/
│ ├── MeshAdventurer-S3.kicad_pcb     # PCB layout
│ ├── MeshAdventurer-S3.kicad_prl     # PCB plot file
│ ├── MeshAdventurer-S3.kicad_pro     # Project file
│ └── MeshAdventurer-S3.kicad_sch     # Schematic
├── Images/
│ ├── MeshAdventurer-S3-Front.png     # Front layer image
│ ├── MeshAdventurer-S3-Back.png      # Back layer image
│ └── MeshAdventurer-S3-Schematic.png # Schematic overview
├── Gerbers/
│ └── Gerbers-MeshAdventurer-S3.zip   # Exported Gerbers for fabrication
└── README.md                         # This file

Images

Front View	Back View	Case

Pin Assignments

LoRa Module	GNSS Module	I2C	Other
Signal GPIO SCLK(SCK) 1 RST 2 DIO(IRQ) 15 MOSI 18 MISO 40 CS(NSS) 39 DIO2 47 TXEN 21 BUSY 7 RXEN 8	Signal GPIO RX 3 TX 16 PPS 5	Signal GPIO SCL 42 SDA 41	Function GPIO User Button 4 NeoPixel LED 48 Encoder Up 9 Encoder Down 10 Encoder Press 11 Voltage Sense 6

Schematic

Bill Of Materials

🔳Modules & Semiconductors	📺Displays & UI
Ref Qty Part Description Footprint U1 1 LM7805 5V linear regulator TO-252 U2 1 E22-900M30S LoRa module Custom U3 1 BME280 Temp / Humidity / Pressure sensor Custom U4 1 ESP32-S3-N16R8 MCU + Flash + PSRAM Custom U5 1 ATGM336H GPS module Custom U6 1 DS3231M RTC SOIC-16 Q1 1 2SC1815 NPN transistor SOT-23	Ref Qty Part Description PCB1 1 SSD1306-OLED OLED display module ENC1 1 EC11E Rotary Encoder Rotary encoder with push SW1 1 SPST Push Button User input BZ1 1 Buzzer Audio indicator

🔩Resistors	⚡Capacitors	🔗Connectors
Ref Qty Value Footprint R1,R2,R6,R7,R9 5 10KΩ 0603 R3 1 100KΩ 0603 R4,R5,R10,R11,R12 5 1KΩ 0603 R8 1 100Ω 0603	Ref Qty Value Notes Footprint C1 1 0.33µF regulator input ECAP 4x3.9 C2 1 100nF Decoupling 0805 C3, C4 2 100µF Bulk Tantalum C5, C6, C7 3 100nF Decoupling 0603 C8, C9, C10 3 10nF Filtering 0603	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.