This propeller clock project is a modified version which uses a PIC16F84A microcontroller to create the POV impression. The original propeller clock was rebuilt using higher intensity LEDs. A rubber ...

This mechanically scanned propeller LED clock was made from 7 LEDs that gives the illusion of number in the air as it spins. During operation, a PIC16F84 microcontroller keeps track of time and ...

If you have a spare DC motor, a PIC16F84A microcontroller, and a lot of patience, then [Jon] has a great guide for building a persistence of vision clock that is sure to brighten up any room. For ...