SmartServeBall

⚡ SmartServe Ball — Electrical Circuit

📘 Overview

This folder contains all electrical design resources for the SmartServe Ball project.
The system connects a Seeed XIAO BLE Sense microcontroller to a buzzer and other peripheral components.

---

🧩 Contents

---

🧠 Design Notes

• Only the schematic was designed digitally in KiCad.
• The PCB itself was not routed in KiCad or fabricated.

Instead, an adaptable prototyping PCB was used for greater flexibility:

• Components were mounted on both sides of the board.
• Components were mounted on top of each other to save space.
• This approach allowed rapid iteration and easy modification during testing and validation.

---

🔌 Connection Overview

The schematic illustrates:

• Power lines (3.3V and GND) shared between all components
• Digital output pin (D5) used to drive the buzzer for apex and event feedback

---

🧰 Tools

• KiCad 7.x or later (for viewing and editing schematic files)
• Seeeduino XIAO KICAD Library (included in this folder)

To open the schematic correctly:

1. Ensure the Seeeduino XIAO KICAD/ folder is in the same directory as the .kicad_pro file.
2. Open SmartServeBall.kicad_pro in KiCad.
3. Verify that component symbols and footprints load without errors.

---

🧱 Assembly Process

The assembly was performed in several structured steps to create a compact and robust sensor module:

1. Top Layer Soldering:
   The first layer of components was soldered on the upper side of the adaptable PCB.
   This included the buzzer, resistor, and pin extensions for the Seeed XIAO BLE Sense.

2. Power Wiring:
   Next, the power supply wires were soldered to the corresponding 3.3V and GND pins, ensuring solid electrical contact and mechanical stability.

3. Base Layer Protection:
   After soldering the lower connections, a thin layer of hot glue was applied to the bottom side of the PCB to insulate and protect the solder joints.

4. Battery Holder Placement:
   The battery holder was then positioned directly on top of the glued surface, forming the second hardware layer of the design.

5. Final Power Connection:
   Finally, the power wires were soldered to the battery holder terminals, completing the electrical circuit and enabling portable operation.

This stacked-layer assembly provided an efficient use of space and robust wiring, allowing the electronics to fit neatly inside the SmartServe Ball’s protective enclosure.

---

📷 Assembly

The Assembly_Photos/ folder shows:

• The adaptable PCB layout
• The component placement on both board sides

These images serve as a reference for replication or redesign.

---

🧾 License

These files are shared for educational and research purposes under the SmartServe Ball project.
Please credit the SmartServe Ball Team when reusing or adapting the schematic or library components.