Here is a visual idea how to improve the end user experience using the code editor.
Selecting the right constant for the hardware outputs is currently error prone and currently done using a drop menu, it is common to mix up left/right eyes, arms and legs when selecting the outputs from the drop-down list.
Add spatial visual blocks providing the constants in an intuitive way, on the attached image i have added a QuirkBot block and a servo backpack block with outputs that can be connected to the constant inputs. The user gets visual spatial clues where the output is connected.
The image below demonstrate the idea:
It would be good if there was a down-loadable art archive with all the QuirkBot art assets including the QuirkBot image, the strawbees images, the straw images, servo images and so on in .svg vector format. By having access to the art resources would make it possible to try extend the editor to add this constant block feature.