198 lines
6.2 KiB
Markdown
198 lines
6.2 KiB
Markdown
# MeshAdventurer-S3
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**Project Name:** MeshAdventurer-S3
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**Author:** Nickie Deuxyeux
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**Date:** 2026-03-19
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**License:** Creative Commons (CC BY)
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---
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## Description
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The MeshAdventurer-S3 is a universal mesh radio designed for use in LoRA mesh networks such as **Reticulum**, **Meshtastic**, and **MeshCore**.
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It is inspired by [MeshAdventurer](https://github.com/chrismyers2000/MeshAdventurer) project by Chris Myers.
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- Based on the widely available ESP32-S3-DevKit-C clone board
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- LoRA modules: [EByte E22-series](https://www.cdebyte.com/products/E22-900M30S)
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Key features:
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- **Fully featured for all popular mesh networks
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- **Wide input voltage support for convenient mobile usage
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- **GPIO headers for easy customization and expandability
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- **Optional DS3231 RTC for timekeeping
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- **Optional I²C environment sensor support (BME280, BME680, etc)
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- **Optional ATGM336H GNSS receiver support
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- **Optional EC11 Rotary Encoder support
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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.
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You are welcome to alter the design to fit your requirements.
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---
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## Project Structure
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```
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MeshAdventurer-S3/
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├── Case/
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│ ├── STL/ # Case part files
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│ ├── MeshAdventurer-S3.f3d # Fusion 360 Project
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├── KiCad/
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│ ├── MeshAdventurer-S3.kicad_pcb # PCB layout
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│ ├── MeshAdventurer-S3.kicad_prl # PCB plot file
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│ ├── MeshAdventurer-S3.kicad_pro # Project file
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│ └── MeshAdventurer-S3.kicad_sch # Schematic
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├── Images/
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│ ├── MeshAdventurer-S3-Front.png # Front layer image
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│ ├── MeshAdventurer-S3-Back.png # Back layer image
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│ └── MeshAdventurer-S3-Schematic.png # Schematic overview
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├── Gerbers/
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│ └── Gerbers-MeshAdventurer-S3.zip # Exported Gerbers for fabrication
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└── README.md # This file
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```
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## Images
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<table>
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<tr>
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<td align="center">
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<img src="Images/MeshAdventurer-S3-Front.png" alt="Front View" width="300"/>
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</td>
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<td align="center">
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<img src="Images/MeshAdventurer-S3-Back.png" alt="Back View" width="300"/>
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</td>
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<td align="center">
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<img src="Images/MeshAdventurer-S3-Case.png" alt="Case" width="300"/>
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</td>
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</tr>
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<tr>
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<td align="center">Front View</td>
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<td align="center">Back View</td>
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<td align="center">Case</td>
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</tr>
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</table>
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## Pin Assignments
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<table>
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<tr>
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<td align="center">LoRa Module</td>
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<td align="center">GNSS Module</td>
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<td align="center">I2C</td>
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<td align="center">Other</td>
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</tr>
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<tr>
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<td valign="top">
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| Signal | GPIO |
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|---------------|------|
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| SCLK(SCK) | 1 |
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| RST | 2 |
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| MISO | 40 |
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| CS(NSS) | 39 |
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| TXEN | 38 |
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| DIO2 | 37 |
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| MOSI | 18 |
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| BUSY | 7 |
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| DIO(IRQ) | 15 |
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| RXEN | 8 |
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</td>
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<td valign="top">
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| Signal | GPIO |
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|---------------|------|
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| RX | 3 |
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| TX | 21 |
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| PPS | 5 |
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</td>
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<td valign="top">
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| Signal | GPIO |
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|---------------|------|
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| SCL | 42 |
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| SDA | 41 |
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</td>
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<td valign="top">
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| Function | GPIO |
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|---------------|------|
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| User Button | 4 |
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| NeoPixel LED | 48 |
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| Encoder Up | 36 |
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| Encoder Press | 35 |
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| Encoder Down | 0 |
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| Voltage Sense | 6 |
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</td>
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</tr>
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</tr>
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</table>
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## Schematic
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## Bill Of Materials
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<table>
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<tr>
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<td align="center">🔳Modules & Semiconductors</td>
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<td align="center">📺Displays & UI</td>
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<td align="center">⚡Capacitors</td>
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</tr>
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<tr>
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<td valign="top">
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| Ref | Qty | Part | Description | Footprint |
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| --- | --- | -------------- | --------------------------------- | --------- |
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| U1 | 1 | LM7805 | 5V linear regulator | TO-252 |
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| U2 | 1 | E22-900M30S | LoRa module | Custom |
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| U3 | 1 | BME280 | Temp / Humidity / Pressure sensor | Custom |
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| U4 | 1 | ESP32-S3-N16R8 | MCU + Flash + PSRAM | Custom |
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| U5 | 1 | ATGM336H | GPS module | Custom |
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| U6 | 1 | DS3231M | RTC | SOIC-16 |
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| Q1 | 1 | 2SC1815 | NPN transistor | SOT-23 |
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</td>
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<td valign="top">
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| Ref | Qty | Part | Description |
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| ---- | --- | ---------------------------- | ------------------------ |
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| PCB1 | 1 | SSD1306-OLED | OLED display module |
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| ENC1 | 1 | EC11E Rotary Encoder | Rotary encoder with push |
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| SW1 | 1 | SPST Push Button | User input |
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| BZ1 | 1 | Buzzer | Audio indicator |
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</td>
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<td valign="top">
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| Ref | Qty | Value | Notes | Footprint |
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| ----------- | --- | ------- | ---------------------- | ------------ |
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| C1 | 1 | 0.33µF | regulator input | ECAP 4x3.9 |
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| C2 | 1 | 100nF | Decoupling | 0805 |
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| C3, C4 | 2 | 100µF | Bulk | Tantalum |
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| C5, C6, C7 | 3 | 100nF | Decoupling | 0603 |
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| C8, C9, C10 | 3 | 10nF | Filtering | 0603 |
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</td>
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</tr>
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</tr>
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</table>
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<table>
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<tr>
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<td align="center">🔩Resistors</td>
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<td align="center">🔗Connectors</td>
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</tr>
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<tr>
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<td valign="top">
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| Ref | Qty | Value | Footprint |
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| ----------------- | --- | ----- | --------- |
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| R1,R2,R6,R7,R9 | 5 | 10KΩ | 0603 |
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| R3 | 1 | 100KΩ | 0603 |
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| R4,R5,R10,R11,R12 | 5 | 1KΩ | 0603 |
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| R8 | 1 | 100Ω | 0603 |
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</td>
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<td valign="top">
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| Ref | Qty | Part | Description |
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| ------ | --- | ----------- | ---------------------- |
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| J1, J2 | 2 | 61302011821 | 1x20 2.54mm pin header |
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</td>
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</tr>
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</tr>
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</table>
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## License
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This project is licensed under **Creative Commons Attribution (CC BY)**. You may share and adapt the material as long as appropriate credit is given.
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