Digital Clock with PIC16F84

seven segment display led
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 clock display



Circuit Diagram

Electronic Circuit Diagram - 12 or 24 Hours Clock

clock circuit Diagram
X1=4Mhz resonator.

Components

PartsDesc.
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

Source code files - 12 or 24 hour clock

Clock HEX and ASM (ZIP)




Sponsored Links