This document describes a binary clock circuit with hour and minute displays using LEDs, an alarm function, and a timer special function. The clock is controlled by a PIC16F84A microcontroller running off a 32768 Hz crystal. It uses 5 push buttons to set the time, alarm, and enable/disable special functions. A cell phone charger supplies power to the circuit instead of a transformer and bridge for simplicity. Interested readers can find more details on the designer's webpage to get the code file or contact him directly.

1. BINARY CLOCK
By ZSOLT
To be always on time…………………………………………..

2. Spec's:
Controller: PIC16F84A
Cristal: 32768 HZ
Clock function : displays hour with green led's & minutes with red led's:
19 minutes
&
4 hour
Alarm function : 1 minute laud beep to get shore you wake up !
Special function: ***timer***
5 push buttons to: set time,alarm, & enable/disable special function,alarm
Pleasure for the eyes before the schematic:

9. the schematic:
I used a old cell
phone charger to
supply the circuit
instead of the
transformer and
bridge.

10. INTERESTED?
Visit my page for .hex file ,other info, or to contact
me : http://www.et.utcluj.ro/zsolt/
(zsolt_levente2000@yahoo.com)