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Hall Effect Mouse

Hardware

By @qtogal

  • 4 Devlogs
  • 5 Total hours

I’m creating a mousepad where a grid of hall effect sensors are embedded to detect any magnet. This aims to make a super lightweight mouse that only has a magnet as the mouse.

Source

qtogal requested funding

$80 S Tier

Waiting on a reviewer. We'll let you know as soon as there's a decision.

@1 returned your funding request ?

$80 S Tier

returning this as it has been funded by outpost! submit your build when you are done building!!

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@qtogal on Hall Effect Mouse

1h 9m 14s logged

Soldered all the parts!

I managed to solder for the first time in my life.
All SS49E sensors are bent so that the sensor side is up
I made sure not to reverse the capacitors since they were electrolytic. (they pop and is kind of dangerous, for anyone who didn’t know)

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@qtogal on Hall Effect Mouse

1h 23m 43s logged

CAD for Mouse and prototype.

  1. CAD for Mouse
  • Simple casing for the magnet to go in
  • Compliant mechanism to work as a click
  1. Prototype
  • Prototyped on breadboard
  • Successfully connected 3 SS49E sensors to each of the analog input in the pico
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@qtogal on Hall Effect Mouse

2h 10m 42s logged

I finished the PCB and case design. I kept the case simple since it is just supposed to function as a mouse pad.

I had to fix the footprint for the hall effect sensor (SS49E) because it was designed to have the pads too close to each other for manufacturing.

In the process I had to reroute the copper to accommodate the new footprint.

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