Documentation concerning code and connections between the Arduino unit and hardware that is not related to the user interface or to the camera. This will include the solid state relay the controls the flow of electricity to the machine, as well as the AC adapter to power the Arduino unit itself.
I pulled out this old parts list I did Fall 2017 as a reference going forward:
https://docs.google.com/spreadsheets/d/1axrSayn7-ovdhnczFju_ardeBkUTZVv9XOOwdYXbAyQ/edit#gid=0
These boards might be a good option for mounting the esp32 Thing. They are basically the same size and layout of a mini breadboard. If we put female headers on it to mount the Thing, we would have the outside row of solder points next to the Thing, plus the power rails and 6 or 7 empty rows we could use for something like the led resistors (maybe?). What do you think? Any other ideas?
Adafruit and SparkFun have them :
and so does Amazon:
Also, a couple led mounting options: