Cenere Mouse

🖱️ Cenere Mouse (Open Source Tri-Mode Connectivity)

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🔎 Project Overview

This project is an open-source tri-mode connectivity gaming mouse, designed around the Nordic nRF52840 SoC.
It supports three connectivity modes:

• USB HID
• Bluetooth Low Energy (BLE)
• Nordic 2.4 GHz Wireless protocol

✨ Key Features

• Custom monopole 2.4 GHz PCB antenna optimized for the nRF52840
• PixArt PAW3395 optical sensor for high-precision tracking
• Battery charging circuit to support Bluetooth and Wireless power
• DC/DC Supply to achieve maximum efficiency, low energy consumption
• Addressable RGB LEDs to optionally enable some aestethic glowing effect
• Fully open-source hardware and firmware*

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📐 PCB Layer Previews

The design is a 4-layer PCB, manufactured by JLCPCB, chosen for their reliable stackup and cost-effective prototyping services.

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🏗️ PCB Stackup (JLCPCB)

The board will be fabricated at JLCPCB with the following stackup:

• Top Layer (Copper, 35 µm) – signal + components
• Prepreg (0.2104 mm, Dk ≈ 4.4) – dielectric (7628*1)
• Mid Layer 1 (Copper, 152 µm) – ground/pwr
• Core (1.065 mm, Dk ≈ 4.6) – dielectric (FR4)
• Mid Layer 2 (Copper, 152 µm) – ground/pwr
• Prepreg (0.2104 mm, Dk ≈ 4.4) – dielectric (7628*1)
• Bottom Layer (Copper, 35 µm) – signal + components

This configuration provides an easy to work with controlled impedance environment for the high speed signals as well as the RF Section.

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🚀 Goals

• Provide a fully open-source reference design for hobbyists, makers, and researchers
• Explore advanced antenna design on low-cost PCB fabrication
• Enable experimentation with custom gaming peripherals

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📂 Repository Structure

/Kicad Files → KiCad design files /Electronics Docs → Documentation, layer renders, diagrams

Work in progress..

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📜 License

This project uses a dual-license model:

• Software (Code) → GNU GPL v3.0 with a Non-Commercial Use Exception

  • You may use, modify, and redistribute the source code for personal, educational, or research purposes.
  • Commercial use is prohibited without prior written permission.
  • Attribution is required.

• Hardware (Schematics, PCB Layouts, Documentation) → CC BY-NC 4.0

  • You may copy, redistribute, remix, and adapt the hardware files.
  • Commercial use is prohibited.
  • Attribution is required.

Attribution Requirement

If you use this project (code or hardware) in your own work, you must credit:

© [Your Name or Handle] – [Year]
Repo: [GitHub Repository URL]

Example attribution:

“Based on the open-source design/code by [Your Name], available at [GitHub Repo URL].”

Commercial Use

For commercial licensing, please contact the author.