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>MeshAdventurer-S3
Project Name: MeshAdventurer-S3
Author: Nickie Deuxyeux
Date: 2026-03-19
License: Creative Commons (CC BY)
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.
β’ Based on the widely available ESP32-S3-DevKit-C clone board
β’ LoRA modules: EByte E22-series and EByte E22P-series
Key features:
β’ **Fully featured for all popular mesh networks
β’ **Wide input voltage support for convenient mobile usage
β’ **GPIO headers for easy customization and expandability
β’ **Optional DS3231 RTC for timekeeping
β’ **Optional IΒ²C environment sensor support (BME280, BME680, etc)
β’ **Optional ATGM336H GNSS receiver support
β’ **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
T282828
MeshAdventurer-S3/
βββ Case/
β βββ STL/ # Case part files
β βββ MeshAdventurer-S3.f3d # Fusion 360 Project
βββ KiCad/
β βββ MeshAdventurer-S3.kicad_pcb # PCB layout
β βββ MeshAdventurer-S3.kicad_prl # PCB plot file
β βββ MeshAdventurer-S3.kicad_pro # Project file
β βββ MeshAdventurer-S3.kicad_sch # Schematic
βββ Images/
β βββ MeshAdventurer-S3-Front.png # Front layer image
β βββ MeshAdventurer-S3-Back.png # Back layer image
β βββ MeshAdventurer-S3-Schematic.png # Schematic overview
βββ Gerbers/
β βββ Gerbers-MeshAdventurer-S3.zip # Exported Gerbers for fabrication
βββ README.md # This file
Images
<table>
<tr>
<td align="center">
<img src="Images/MeshAdventurer-S3-Front.png" alt="Front View" width="300"/>
</td>
<td align="center">
<img src="Images/MeshAdventurer-S3-Back.png" alt="Back View" width="300"/>
</td>
<td align="center">
<img src="Images/MeshAdventurer-S3-Case.png" alt="Case" width="300"/>
</td>
</tr>
<tr>
<td align="center">Front View</td>
<td align="center">Back View</td>
<td align="center">Case</td>
</tr>
</table>
Pin Assignments
<table>
<tr>
<td align="center">LoRa Module</td>
<td align="center">GNSS Module</td>
<td align="center">I2C</td>
<td align="center">Other</td>
</tr>
<tr>
<td valign="top">
βββββββββββββ¬βββββββ
β Signal β GPIO β
βββββββββββββΌβββββββ€
β SCLK(SCK) β 1 β
β RST β 2 β
β DIO(IRQ) β 15 β
β MOSI β 18 β
β MISO β 40 β
β CS(NSS) β 39 β
β DIO2 β 47 β
β TXEN β 21 β
β BUSY β 7 β
β RXEN β 8 β
βββββββββββββ΄βββββββ
</td>
<td valign="top">
ββββββββββ¬βββββββ
β Signal β GPIO β
ββββββββββΌβββββββ€
β RX β 3 β
β TX β 16 β
β PPS β 5 β
ββββββββββ΄βββββββ
</td>
<td valign="top">
ββββββββββ¬βββββββ
β Signal β GPIO β
ββββββββββΌβββββββ€
β SCL β 42 β
β SDA β 41 β
ββββββββββ΄βββββββ
</td>
<td valign="top">
βββββββββββββββββ¬βββββββ
β Function β GPIO β
βββββββββββββββββΌβββββββ€
β User Button β 4 β
β NeoPixel LED β 48 β
β Encoder Up β 9 β
β Encoder Down β 10 β
β Encoder Press β 11 β
β Voltage Sense β 6 β
βββββββββββββββββ΄βββββββ
</td>
</tr>
</tr>
</table>
Schematic
Bill Of Materials
<table>
<tr>
<td align="center">π³Modules & Semiconductors</td>
<td align="center">πΊDisplays & UI</td>
</tr>
<tr>
<td valign="top">
βββββββ¬ββββββ¬βββββββββββββββββ¬ββββββββββββββββββββββββββββββββββββ¬ββββββββββββ
β Ref β Qty β Part β Description β Footprint β
βββββββΌββββββΌβββββββββββββββββΌββββββββββββββββββββββββββββββββββββΌββββββββββββ€
β U1 β 1 β LM7805 β 5V linear regulator β TO-252 β
β U2 β 1 β E22-900M30S β LoRa module β Custom β
β U3 β 1 β BME280 β Temp / Humidity / Pressure sensor β Custom β
β U4 β 1 β ESP32-S3-N16R8 β MCU + Flash + PSRAM β Custom β
β U5 β 1 β ATGM336H β GPS module β Custom β
β U6 β 1 β DS3231M β RTC β SOIC-16 β
β Q1 β 1 β 2SC1815 β NPN transistor β SOT-23 β
βββββββ΄ββββββ΄βββββββββββββββββ΄ββββββββββββββββββββββββββββββββββββ΄ββββββββββββ
</td>
<td valign="top">
ββββββββ¬ββββββ¬βββββββββββββββββββββββ¬βββββββββββββββββββββββββββ
β Ref β Qty β Part β Description β
ββββββββΌββββββΌβββββββββββββββββββββββΌβββββββββββββββββββββββββββ€
β PCB1 β 1 β SSD1306-OLED β OLED display module β
β ENC1 β 1 β EC11E Rotary Encoder β Rotary encoder with push β
β SW1 β 1 β SPST Push Button β User input β
β BZ1 β 1 β Buzzer β Audio indicator β
ββββββββ΄ββββββ΄βββββββββββββββββββββββ΄βββββββββββββββββββββββββββ
</td>
</tr>
</tr>
</table>
<table>
<tr>
<td align="center">π©Resistors</td>
<td align="center">β‘Capacitors</td>
<td align="center">πConnectors</td>
</tr>
<tr>
<td valign="top">
βββββββββββββββββββββ¬ββββββ¬ββββββββ¬ββββββββββββ
β Ref β Qty β Value β Footprint β
βββββββββββββββββββββΌββββββΌββββββββΌββββββββββββ€
β R1,R2,R6,R7,R9 β 5 β 10KΞ© β 0603 β
β R3 β 1 β 100KΞ© β 0603 β
β R4,R5,R10,R11,R12 β 5 β 1KΞ© β 0603 β
β R8 β 1 β 100Ξ© β 0603 β
βββββββββββββββββββββ΄ββββββ΄ββββββββ΄ββββββββββββ
</td>
<td valign="top">
βββββββββββββββ¬ββββββ¬βββββββββ¬ββββββββββββββββββ¬βββββββββββββ
β Ref β Qty β Value β Notes β Footprint β
βββββββββββββββΌββββββΌβββββββββΌββββββββββββββββββΌβββββββββββββ€
β C1 β 1 β 0.33Β΅F β regulator input β ECAP 4x3.9 β
β C2 β 1 β 100nF β Decoupling β 0805 β
β C3, C4 β 2 β 100Β΅F β Bulk β Tantalum β
β C5, C6, C7 β 3 β 100nF β Decoupling β 0603 β
β C8, C9, C10 β 3 β 10nF β Filtering β 0603 β
βββββββββββββββ΄ββββββ΄βββββββββ΄ββββββββββββββββββ΄βββββββββββββ
</td>
<td valign="top">
ββββββββββ¬ββββββ¬ββββββββββββββ¬βββββββββββββββββββββββββ
β Ref β Qty β Part β Description β
ββββββββββΌββββββΌββββββββββββββΌβββββββββββββββββββββββββ€
β J1, J2 β 2 β 61302011821 β 1x20 2.54mm pin header β
ββββββββββ΄ββββββ΄ββββββββββββββ΄βββββββββββββββββββββββββ
</td>
</tr>
</tr>
</table>
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.
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