This provides a visual reference for wiring of the components. They aren't true to scale, just meant to be used as reference.
The 3xAAA battery pack can supply ~4.5V which is suffice to power the Circuit Playground Express. The battery plugs directs into the JST connector. You can also power from USB if you don't mind plugging it into a computer or wall adapter
We'll use copper tape to extend the touch pads to the outside of the cup. The following connections are setup for the program in MakeCode.
- The pads marked A4, A5 and A6 can connect to the copper tape