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Making Stuff Together! / Re: Stupid quick PCB design
« Last post by vvp on Fri, 04 July 2025, 13:02:31 »If you have an access to a 3D printer then you can design and print an holder for your controller. That will take care of holding it securely which is one of the reasons you want to design your "breakout board". The other feature of your "breakout board" is to provide comfortable access to the pins. But you do not need this feature since your controller already provides it (contrary to a raw MCU SMD package).
You can securely hold you controller in corners. Design slots into which the corners of the controller PCB fit tightly. Secure the corners (which are not constrained from at least four directions) with a screw. If you do this on all 4 corners then it will hold very well. It is often enough to constrain two opposing corners from 4 directions and the other two from only one direction.
See this post as an example how I fixed Arduino Micro (which has a similar PCB) to a plastic case: https://deskthority.net/viewtopic.php?p=181898#p181898 Two opposite corners (with screws) are constrained from 4 directions. The other two corners are constrained from only 3 directions. Holds well enough. It can be dismounted if needed.
You can securely hold you controller in corners. Design slots into which the corners of the controller PCB fit tightly. Secure the corners (which are not constrained from at least four directions) with a screw. If you do this on all 4 corners then it will hold very well. It is often enough to constrain two opposing corners from 4 directions and the other two from only one direction.
See this post as an example how I fixed Arduino Micro (which has a similar PCB) to a plastic case: https://deskthority.net/viewtopic.php?p=181898#p181898 Two opposite corners (with screws) are constrained from 4 directions. The other two corners are constrained from only 3 directions. Holds well enough. It can be dismounted if needed.
