Update pin assignments

README.md

@@ -16,10 +16,10 @@ It is mostly designed for stationary deployment and PoE power.
 
 Key features:
 
-- **Compact form factor** suitable for outdoor mesh nodes
+- Compact form factor** suitable for outdoor mesh nodes  
-- **Power-over-Ethernet (PoE)** support for convenient outdoor or roof deployment
+- Power-over-Ethernet (PoE)** support for convenient outdoor or roof deployment  
-- **Ethernet connectivity** for reliable wired networking
+- Ethernet connectivity** for reliable wired networking  
-- **GPIO headers** for easy customization and expandability  
+- GPIO headers** for easy customization and expandability  
 - Optional **DS3231MZ+ RTC** for timekeeping  
 - Optional **I2C** environment sensor support (BME280, BME680, etc)  
 
@@ -72,28 +72,28 @@ MeshPoE-S3/
 
 | Signal        | GPIO |
 |---------------|------|
-| CS(NSS)       | 39   |
+| CS(NSS)       | 16   |
-| SCLK(SCK)     | 14   |
+| SCLK(SCK)     | 18   |
-| MISO          | 36   |
+| MISO          | 3    |
-| MOSI          | 37   |
+| MOSI          | 15   |
-| BUSY          | 34   |
+| BUSY          | 1    |
-| RST           | 35   |
+| RST           | 2    |
-| DIO(IRQ)      | 33   |
+| DIO(IRQ)      | 0    |
-| TXEN          | 43   |
+| TXEN          | 34   |
-| RXEN          | 44   |
+| RXEN          | 35   |
 </td>
 <td valign="top">
 
 | Signal        | GPIO |
 |---------------|------|
-| SCK           | 1    |
+| SCL           | 17   |
-| SDA           | 0    |
+| SDA           | 21   |
 </td>
 <td valign="top">
 
 | Function      | GPIO |
 |---------------|------|
-| User Button   | 40   |
+| User Button   | 36   |
 </td>
 </tr>
 </tr>
@@ -102,5 +102,69 @@ MeshPoE-S3/
 ## Schematic
 ![Schematic](Images/MeshPoE-S3-Schematic.png)
 
+## Bill Of Materials
+<table>
+<tr>
+<td align="center">🔳Modules</td>
+<td align="center">⚡Capacitors</td>
+</tr>
+<tr>
+<td valign="top">
+
+| 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        |
+</td>
+<td valign="top">
+
+| 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      |
+</td>
+</tr>
+</tr>
+</table>
+
+<table>
+<tr>
+<td align="center">🧲Inductors</td>
+<td align="center">🔩Resistors</td>
+<td align="center">🔘Switches</td>
+<td align="center">🔗Connectors</td>
+</tr>
+<tr>
+<td valign="top">
+
+| Ref | Qty | Value | Footprint |
+| --- | --- | ----- | --------- |
+| L1  | 1   | 15µH  | 1210      |
+</td>
+<td valign="top">
+
+| Ref | Qty | Value | Footprint |
+| --- | --- | ----- | --------- |
+| R1  | 1   | 10k   | 1206      |
+</td>
+<td valign="top">
+
+| Ref | Qty | Part             | Footprint  |
+| --- | --- | ---------------- | ---------- |
+| S1  | 1   | SPST Push Button | 6x6x5mm    |
+</td>
+<td valign="top">
+
+| Ref    | Qty | Part        | Description            |
+| ------ | --- | ----------- | ---------------------- |
+| J1, J2 | 2   | 61302011821 | 1x20 2.54mm pin header |
+</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.