Step 1: The Electronics
Note that if you etch your own PCB the LED's are mounted as normal thru hole components but the IC's, links and other components are placed on the copper side of the board. The LED's and links will need to be mounted first as the AVR covers some of the LED solder points. Details in the pictures.
Step 2: The Display
The first three photos show the strip board version, the remainder the etched PCB version.
Step 3: The Case
Step 4: The Final Product and Files
LED1-LED3 5mm High Intensity Blue LED
LED4-LED12 5mm High Intensity Red LED
LED13-LED18 5mm High Intensity Orange LED
LED19-LED27 5mm High Intensity Green LED
R1-R4 100k 1/4w Resistor
Q4 32.768 kHz Crystal
C1 4.7uF 10V Electrolytic Capacitor
C2,C3 10pF Ceramic Capacitor
IC1 ATMEGA16 AVR Microcontroller
IC2,IC3 TD62304 Darlington Transistor Arrays (these could be replaced with standard transistors)
S1-S3 Momentary Push Buttons
Enjoy! and vote for me!