Simple single micro:bit servomotor layout drawn in Autodesk Fusion 360.

Good diagrams go a long way towards understanding how to set up an activity. For this project, I measured the physical materials/components using a set of digital calipers and modeled them in Autodesk Fusion 360.

The benefit of doing this is better clarity compared to a photograph and more detailed than an abstract drawing of the materials and setup. You can also reuse the models to create hypothetical setups for situations where you don’t have the physical components, for example a setup/layout using two servomotors and two battery packs, and to create clear layouts for a materials list.

Layout using a single micro:bit to control two servomotors powered by two battery packs, drawn in Autodesk Fusion 360.

Example diagram of materials needed for an activity, drawn in Autodesk Fusion 360.