LED MATRIX CLOCK v.2

This is a new version of my bi-color matrix clock. It has large and bright display and shows time in six different ways. The clock may change display mode randomly in 1..59 min intervals, it has also built-in random number generator (0..9 and red/green). The unit supports back up battery. It is built around C8051F314 uC. The quartz is used for precise time keeping.