3D models are now available

[Zontex]

Hi guys,

Per the request of our backers, I'll be generating 3D cad models of Eduponics hardware: https://github.com/STEMinds/Eduponics-Mini/tree/main/3D_CAD_STEP.

Note the license allows non-commercial personal use only.

Currently, the extension board has been designed, and now the mini dev and soil moisture sensors are left to go.