IMG_5575-sm

DEVICE SE7EN SEGMENT

A pessimistic counter [countdown] with a potentiometer, so that the user can control the speed, it beeps and flashes a red LED when it reaches zero, on the fast side [roughly] one cycle per second on the slow side [roughly] 317 years per cycle.

pictures of the earlier material versions & some of the final pieces in this series, created with the help of Amir M. – programming & scheme layout.