README.md updates, new images

README.md

@@ -8,19 +8,23 @@
 ---
 
 ## Description
-The MeshPoE-S3 is a universal PCB designed for use in LoRA mesh networks such as **Reticulum**, **Meshtastic**, and **MeshCore**.
+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](https://www.waveshare.com/esp32-s3-eth.htm)  
 - LoRA modules: [EByte E22-series](https://www.cdebyte.com/products/E22-900M30S)
 
 Key features:
 
-- **Compact form factor** suitable for embedded outdoor mesh nodes  
-- **Power-over-Ethernet (PoE)** support for convenient outdoor deployment  
-- **Ethernet connectivity** for mesh networking  
-
-This repository contains the KiCad project files, PCB schematics, board images, and Gerbers for fabrication.
+- **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
@@ -40,8 +44,60 @@ MeshPoE-S3/
 └── README.md                  # This file
 ```
 ## Images
-![Front Layer](Images/MeshPoE-S3-Front.png)  
-![Back Layer](Images/MeshPoE-S3-Back.png)  
+
+<table>
+<tr>
+<td align="center">
+<img src="Images/MeshPoE-S3-Front.png" alt="Front View" width="300"/>
+</td>
+<td align="center">
+<img src="Images/MeshPoE-S3-Back.png" alt="Back View" width="300"/>
+</td>
+</tr>
+<tr>
+<td align="center">Front View</td>
+<td align="center">Back View</td>
+</tr>
+</table>
+
+## Pin Assignments
+<table>
+<tr>
+<td align="center">LoRa Module</td>
+<td align="center">I2C</td>
+<td align="center">Other</td>
+</tr>
+<tr>
+<td valign="top">
+
+| Signal        | GPIO |
+|---------------|------|
+| CS(NSS)       | 39   |
+| SCLK(SCK)     | 14   |
+| MISO          | 36   |
+| MOSI          | 37   |
+| BUSY          | 34   |
+| RST           | 35   |
+| DIO(IRQ)      | 33   |
+| TXEN          | 43   |
+| RXEN          | 44   |
+</td>
+<td valign="top">
+
+| Signal        | GPIO |
+|---------------|------|
+| SCK           | 1    |
+| SDA           | 0    |
+</td>
+<td valign="top">
+
+| Function      | GPIO |
+|---------------|------|
+| User Button   | 40   |
+</td>
+</tr>
+</tr>
+</table>
 
 ## Schematic
 ![Schematic](Images/MeshPoE-S3-Schematic.png)