Digital Clock with PIC16F84
Digital Clock - 24 Hours
Hardware
Circuit Diagram | Components
Software
Source code
Project Specifications
PIC:PIC16F84A
Processor Frequency:4MHz
Range:0 to 24 Hours
Timer Set:Up - Down Switch
Display: Hour:00-23 Minuts:00-59
Power: External 6V D.C.
Clock count every second controled by hardware.
Adjustable time with SW1 and SW2 switches.
LED1 indicate seconds.
Clock Display
Circuit Diagram
Electronic Circuit Diagram - 12 or 24 Hours Clock
Components
Parts Desc.
R1 – R8 100Ω
R9 - R13 10KΩ
C1 22pF
C2 22pF
D1 LED
U1 – U4 Common Cathode 7 Segment Display
Q1 – Q4 C828
XTAL1 4 MHz Crystal
IC1 7805 Regulator IC
PIC1 PIC 16F84 OR PIC16F84A
SW1 -SW3 Push to ON push button switch
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