A portable object with a display that shows the time when I request it by pressing a button and also shows the time at the times I’ve checked the time in the past. The display is otherwise dark. Every button press logs the current time, and if the minutes and hours match the time on a subsequent day, the display will display that time.
I did not figure out how to connect the datalogging shield to my Arduino Nano and the documentation doesn’t make reference to if they are compatible. I am still waiting for a different Arduino and display to arrive and I don’t know the wiring setup yet.