Shared by Federico_Busero on Thingiverse:
It is of course possible to make a 8×8 matrix using 4 4×4 Neotrellis keypads, but then you still need a CPU to control it. But also the M4 (8×4) can be extended with 2 addiditional 4×4 keypads to create a 8×8 matrix, so you don’t need an additional CPU anymore. This makes soldering and case easier. Here you can find a case, soldering instructions and a link to the software library to control it.
Lasercut case for a Adafruit Neotrellis M4 Mainboard (8×4) with 2 additional 4×4 trellis keypads to make a 8×8 sytem.
Download the files and learn more
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
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