"XMAS" Project

This is a really fun project and one that I'm sure you and your family will get a lot of use of - for any holiday, not just Christmas. I recommend that you build the PCB that is included in the book as the time required to wire wrap or point to point wire this project will dampen any holiday spirit (I know because I've built a number of these things by hand).

Click Here to look at the application's source code.

The circuit used for this application is given in the pdf file that you can look at Here.

The bill of materials for this application is:

Part Description

U1 PIC16F84-04/P

U2 7805 +5 Volt Regulator

U3 - U4 74LS374, 8 Bit Register

Y1 3.58 MHz Ceramic Resonator with Built in 27 to 33 pF Capacitors

D1 1N4001 Silicon Diode

D2 - D17 5 mm Red LEDs - LEDs with pre-soldered leads recommended

R1 10K, 1/4 Watt Resistor

R2 - R17 220 Ohm, 1/4 Watt Resistors

C1 10 uF, 35 Volt Electrolytic Capacitor

C2, C4, C6 0.1 uF, 16 Volt Tantalum Capacitors

C3 0.47 uF Capacitor (Any Type)

J1 2.5 mm Power Plug

Speaker Pieczo Electric Speaker (Digi-Key Part Number P9922-ND)

Miscellaneous Breadboard Prototyping System, Wiring, AC/DC Power Supply