SwitchCheese

#2 PCB Finalization
Wow! Designing my first ever PCB was a lot of fun even if there were many frustrating moments, here’s my progress on the macropad so far:

• I learned how to set up a matrix layout, it was a lot of trial and error but eventually it clicked after consulting many different resources online (highly recommend the arduino forums 😭). I setup 3 rows and 3 columns and attached the end of each respective row and column to the seeed module.

• Used GrabCad to source the missing 3D model step files for the switches and the module

• Decided to expand 3x3 grid layout to improve the functionality of the keyboard, more shortcuts never harmed nobody

• Added a rotary switch for precise volume control, mounting holes and custom silkscreens

• Now measures 108.5mm by 88mm, passed ERC and DRC 🙌

Tip

• You can ignore the DRC warning about a missing clipboard library, it often happens when pasting a silkscreen graphic and doesn’t affect your project

My Challenges

• I’ve never done any soldering before, debating if I should look for alternatives like lead free solder paste (works with a hot air gun) or if I should just get a soldering kit

TODO: Learn how to use Fusion 360 and design the 3D printable case for the macropad

#1 Debut of PCB Work
As a programmer, I really have no idea what challenges await me but im excited to make my own hardware for the first time👊

• I settled on a simple 3x1 design just to ensure I get the basics of KICad before complicating things
• Switch footprints kept overlapping and I was unsure how to create the clearance before I realized you can drag them 😅
• DRS did flag issues with the wiring and edge cuts
• Currently troubleshooting how to show the physical components of the PCB in 3d viewer (for some reason the step files were not in the library)

I watched a tutorial online and then restarted the project from scratch and reworked the PCB without help.

• Still feels quite overwhelming but I don’t plan on giving up

TODO: Expand PCB to support 6 switches in a 3x2 grid using a matrix design