Artist's commentary
Hang in There, Kogasa-san 3174
Toiling away from small things (lol)
Just this "displaying numbers" is a big piece of work.
Programing is hard(^^;)
Kogasa-san's holding a thing called a "breadboard", and it's a temporary board to test if circuits works.
After checking if it works here then you put it on the main board.
It seems that a lot of people just use it as is on the breadboard.