I run youth camps for a living and as part of them we do lots of craft/building activities. I have been trying to think of an activity for the more STEM focused of our kids. So I am thinking of a project based off an NodeMCU or a Wemos.
Now budget is of concern, I need to keep the activity between $5-$10 and it would be good if it could have some sort of physical interaction as a finishing activity. It would work better if the sketch could be pre loaded as we have limited computers. So the build would need to be part of the fun. Soldering isn’t out of the question.
What do people think could be done?