Hans the 555 Timer Chip

"Hans is the 'old man' of the group. He tends to be nervous and is often indecisive," according to Adafruit. "Hans frequently changes his mind, and is a little fidgety (he oscillates) when he's not moving around. He is very meticulous and precise in other ways; Hans does not like to compromise, preferring to be in a steady state until a dramatic change is called for. Hans speaks with the voice of a kindly old man with a Swiss-German accent, though his voice can become more nasally when he's upset or feels strongly about something. His catchphrase is 'maybe so, but perhaps not.'"