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