TW-DIY-5073


TW-DIY-5073

Big PIC Clock Kit - DIY


Big PIC Clock Kit - DIY

The Big PIC Clock is based on a PIC16F84 microcontroller (uC.) The software in the uC allows for very accurate timekeeping. For visibility at a distance it uses 2.3/57mm super large, hi-efficiency red LED displays for the hours and minutes and smaller 0.56 LED displays for the seconds. The circuit incorporates a dimming feature so that at night the reduced ambient light is sensed and the display is dimmed.

COMPONENTS

  • Tinned copper wire 12"
  • Resistors 5%, 1/4W:
  • 10R R3 1
  • 82R R11 12 14 15 16 17 18 7
  • 180R R11 1
  • 220R R9 10 19 20 21 22 23 7
  • 470R R5 24 25 26 27 28 29 30 31 9
  • 1K R7 1
  • 2K2 R2 1
  • 4K7 R4 1
  • 10K R6 1
  • 470K R8 1
  • Zero ohm resistors for links on K73b 4
  • 2R2 1W R1 1
  • 0.1 104 box poly MKT C10 1
  • 1n5 box poly MKT C9 1
  • 1N4004 D1 2 3 4 4
  • 1N4148 D5 D6 2
  • 4.000MHZ Xtal 1
  • 10uF/25V mini C1 2 3 4 6 5
  • 100uF/16V mini C5 1
  • 15V 1W zener diode ZD1 1
  • 27p ceramic NPO type C7 C8 2
  • LDR LDR 1
  • BC328 Q1  Q8 8
  • 4051 IC2 1
  • PIC16F84 IC1 1
  • ULN2003A IC3 1
  • 7905 IC4 1
  • 20 pin IC socket 1
  • 18 pin IC socket 1
  • 16 pin IC socket 2
  • 0.05 Metal Pins 8
  • 3mm x 6mm nut and bolt set 1 set
  • Metal spacer 3mm x 15mm 4
  • 3mm screws x 6mm 8
  • 2 pin SIL header 1
  • jumper 1
  • LED 0.56" display 2
  • LED 2.3" display 4
  • 8 pin female header 3
  • 8 pin male SIL strip 3
  • K73A PCB 1
  • K73B PCB 1

$99.99


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