chore: update Docusaurus dependencies to version 3.9.2 and remove unused images

- Updated Docusaurus core and related packages from version 3.9.1 to 3.9.2 in package.json.
- Removed the "IDEA Mesh Tracker C1" category from sidebars.js and simplified it to "Mesh Tracker C1" with only the quickstart item.
- Deleted unused image files: breakout-series.main.png and quill-series.main.png from static/img/products.

Author: chihosin

docs/product/f2102/index.mdx

@@ -0,0 +1,152 @@
+---
+description: Getting Started with FoBE Mesh Tracker C1.
+sidebar_label: Getting Started with FoBE Mesh Tracker C1
+image: /img/products/f2102-r1lg.main.png
+slug: /mesh_tracker_c1_getting_started
+toc_max_heading_level: 4
+sidebar_position: 1
+keywords:
+  - FoBE
+  - nRF52840
+  - Mesh
+last_update:
+  date: 10/30/2025
+  author: Fernando
+---
+
+# Getting Started with FoBE Mesh Tracker C1
+
+<div style={{ textAlign: 'center' }}>
+  <img src="/img/products/f2102-r1lg.main.png" style={{ width: '80%', height: 'auto' }} />
+</div>
+<div className="theme-button-buy" style={{ textAlign: 'center' }}>
+  <a href="https://store.fobestudio.com/products/f2102" target="_blank" rel="noopener noreferrer">
+        <button>Get One 🛍️</button>
+  </a>
+</div>
+
+## Introduction
+
+FoBE Mesh Tracker C1 is a complete application board designed for outdoor LoRa communication. It integrates a nRF52840 MCU, GPS, buzzer, display screen, and LoRa transceiver, providing all the necessary features for an outdoor LoRa communication device.
+
+The board features a rotary encoder, two buttons for easy user interface operation, an onboard BLE antenna for convenient configuration, a 0.96-inch OLED screen, and two indicator LEDs. It also includes a USB-C connector, reserved SWDIO/SWCLK header holes on the side, an 8-pin header for external expansion with 6 GPIO pins, and two IPEX antenna connectors for LoRa and GPS antennas.
+
+## Key Features
+
+- Core Components
+  - nRF52840 MCU
+  - GPS module with IPEX antenna connector
+  - LoRa transceiver with IPEX antenna connector
+  - 0.96-inch OLED screen
+  - Buzzer for audio feedback
+
+- User Interface
+  - Rotary encoder for easy navigation
+  - Two user buttons
+  - Two indicator LEDs
+  - Onboard BLE antenna
+
+- Connectivity and Expansion
+  - USB-C connector
+  - Reserved SWDIO/SWCLK header holes
+  - 8-pin header with 6 GPIO Pins for external expansion
+  - 2-Pin MX1.25 battery input interface
+  - 6-Pin SH1.0 FPC external module interface x 2
+
+## Hardware diagram
+
+The following figure illustrates the FoBE IDEA Mesh Tracker C1 hardware diagram.
+
+<div style={{ textAlign: 'center' }}>
+  <img src="/img/products/f2102-r1lg.digram.png" alt="FoBE IDEA Mesh Tracker C1 Hardware Diagram" style={{ width: '80%', height: 'auto' }} />
+</div>
+
+<div style={{ textAlign: 'center' }}>
+  <img src="/img/products/f2102-r1lg.digram-1.png" alt="FoBE IDEA Mesh Tracker C1 Hardware Diagram-1" style={{ width: '80%', height: 'auto' }} />
+</div>
+
+## Mechanical dimensions
+
+FoBE IDEA Mesh Tracker C1 is a compact PCB with dimensions of 50mm \* 50mm, designed for outdoor LoRa communication.
+
+<div style={{ textAlign: 'center' }}>
+  <img src="/img/products/f2102-r1lg.dimensions.png" alt="FoBE IDEA Mesh Tracker C1 Mechanical Dimensions" style={{ width: '80%', height: 'auto' }} />
+</div>
+
+## Power Supply
+
+- GPS power (GNSS-3V3) is controlled by MCU P0.26. GPS data backup power is not controlled.
+- Screen, buzzer, and external header power (PERI-3V3) are controlled by MCU P0.16.
+
+## Status Indicators
+
+The board has two indicator LEDs:
+
+- Power LED
+- Charging Indicator LED
+
+## Buttons
+
+The board has two buttons:
+
+- Reset Button
+- User Button (connected to MCU P1.00)
+
+## Shielding Pads
+
+The MCU and LoRa IC have reserved shielding pads, allowing users to add shielding covers for improved signal performance.
+
+## Battery Management
+
+- The battery charging IC directly manages the battery connection.
+- The NTC header is directly connected to the charging IC.
+- Battery voltage is measured using a voltage divider circuit (1M and 1.5M resistors), and the measurement is read by MCU P0.05.
+
+## Sub-GHz Radio (LoRa)
+
+The FoBE IDEA Mesh Tracker C1 board features an on-board sub-GHz radio module based on the Semtech SX1262. It supports LoRa and (G)FSK modulation and operates in the 433 MHz, 868 MHz, and 915 MHz frequency bands (depending on the model). An integrated 1.8V TCXO ensures excellent stability across temperature variations.
+
+Key specifications include a low active receive current of just 4.2 mA, a maximum transmit power of up to +22 dBm, and high sensitivity down to -148 dBm, providing excellent interference immunity.
+
+The module connects to the nRF52840 SoC via SPI for long-range wireless communication:
+
+| SX1262 Pin | GPIO Pin  |
+| ---------- | --------- |
+| MISO       | **P0.24** |
+| MOSI       | **P0.22** |
+| SCK        | **P0.20** |
+| NSS        | **P1.08** |
+| RST        | **P0.13** |
+| BUSY       | **P0.15** |
+| DIO1       | **P0.17** |
+| RXEN       | **P0.11** |
+
+## GPS
+
+The GPS module has the following pin assignments:
+
+| GPS Pin | GPIO Pin  |
+| ------- | --------- |
+| RST     | **P0.04** |
+| RXD     | **P0.12** |
+| TXD     | **P1.09** |
+| PPS     | **P0.08** |
+| WAKE    | **P0.06** |
+
+## Configuration Jumper
+
+The board features a jumper pads:
+
+| Interface     | Description                                                                                                                           |
+| ------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
+| CONSTELLATION | Soldering this pad configures the module to use GPS + GLONASS. By default, the pad is not soldered, and the module uses BeiDou + GPS. |
+
+## Resources
+
+**[PDF]** [FoBE Mesh Tracker C1 Datasheet](/assets/files/f2102/f2102.prj.datasheet.r1lg.pdf)
+
+**[PDF]** [FoBE Mesh Tracker C1 Schematic](/assets/files/f2102/f2102.prj.sch.r1lg.pdf)
+
+**[PDF]** [FoBE Mesh Tracker C1 Dimension](/assets/files/f2102/f2102.prj.dim.r1lg.pdf)
+
+**[OBJ]** [FoBE Mesh Tracker C1 3D Model](/assets/files/f2102/f2102.prj.model.r1lg.obj)

docs/product/f2102/quickstart.md

@@ -25,12 +25,12 @@ The **FoBE IDEA** Series is designed to provide DIY enthusiasts and hardware dev
         </tr>
         <tr>
             <td>F2101</td>
-            <td style={{ fontWeight: 'bold', width: '40%' }} ><Link to="/product/f2101">FoBE IDEA Mesh Solar Power</Link></td>
+            <td style={{ fontWeight: 'bold', width: '40%' }} ><Link to="/product/f2101/quickstart">FoBE IDEA Mesh Solar Power</Link></td>
             <td>Versatile solar expansion board designed to enhance the capabilities of QUILL series devices. It offers a convenient and efficient solution for solar power integration, battery management, and an adjustable low-power DC-DC boost converter.</td>
         </tr>
         <tr>
             <td>F2102</td>
-            <td style={{ fontWeight: 'bold', width: '40%' }} ><Link to="/product/f2102">FoBE IDEA Mesh Tracker C1</Link></td>
+            <td style={{ fontWeight: 'bold', width: '40%' }} ><Link to="/mesh_tracker_c1_getting_started">FoBE IDEA Mesh Tracker C1</Link></td>
             <td>Complete application board designed for outdoor LoRa communication. It integrates a nRF52840 MCU, GPS, buzzer, display screen, and LoRa transceiver, providing all the necessary features for an outdoor LoRa communication device.</td>
         </tr>
     </tbody>

docs/product/f2102/quickstart.mdx

@@ -290,7 +290,7 @@ module.exports = {
           priority: 0.5,
         },
         docs: {
-          breadcrumbs: false,
+          breadcrumbs: true,
           routeBasePath: "/",
           path: "docs",
           editUrl: function ({ version, versionDocsDirPath, docPath }) {