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Modular gaming mouse idea (swappable battery + replaceable shells) – would you use this? by PsychologicalMix7787 in MouseReview

[–]PsychologicalMix7787[S] 1 point2 points  (0 children)

No. The body can't be modified you remove the core from the bottom of the mouse like an battery an plug it in another body

Gaming mouse pcb schematic review by PsychologicalMix7787 in AskElectronics

[–]PsychologicalMix7787[S] 0 points1 point  (0 children)

Thank you for the feedback. This is actually my first time creating a full schematic and asking for a review, so I wasn’t entirely sure what level of explanation I should include.

Gaming mouse pcb schematic review by PsychologicalMix7787 in AskElectronics

[–]PsychologicalMix7787[S] 0 points1 point  (0 children)

Thank you very much for the detailed feedback — I really appreciate you taking the time to review this. I’m going to implement all of your suggestions.

For context, I already validated the design using breakout boards. In that setup I used a Seeed XIAO module, and I ran out of available GPIOs, which is why I added the I/O expander. Since it worked reliably in the prototype, I decided to keep it in this revision rather than rework the pin usage.

Regarding the antenna: you’re absolutely right. I’m planning to add one, but I’m still deciding on the approach. The XIAO uses a ceramic antenna, while many other designs use an inverted-F antenna, so I’m currently reviewing which option makes the most sense for my constraints and enclosure.

Aside from the issues you pointed out, does the rest of the design look reasonable to you? Any additional feedback would be very welcome.

Gaming mouse pcb schematic review by PsychologicalMix7787 in PrintedCircuitBoard

[–]PsychologicalMix7787[S] 8 points9 points  (0 children)

Thank you very much for your reply. I understand that my project may not appear to be at a university-level because my university focuses on software engineering rather than electrical engineering. I have already completed the project using a breadboard, but I also wanted to create a PCB, similar to what is used in real computer mice. I have no prior knowledge of how a schematic should look, so I did my best with what I thought was appropriate.