| Image | Description | Quantity |
 | Printed circuit board | 1 |
 | LED clock display
| 1 |
 | 28 pin IC socket | 1 |
 | ATmega328 microcontroller IC | 1 |
 | 74HC595 IC | 1 |
 | 74LS247 IC | 1 |
 | 6mm tactile switch button
| 3 |
 | 12mm tactile switch button
| 1 |
 | red button cap
| 1 |
 | piezo buzzer
| 1 |
 | .1uF capacitor (may be labeled "104") | 4 |
 | 100uF capacitor | 1 |
 | 10uF capacitor | 1 |
 | 22pF capacitor | 2 |
 | 150 ohm resistor : brown-green-brown-gold | 12 |
 | 10K ohm resistor : brown-black-orange-gold | 5 |
 | 16MHz crystal
| 1 |
 | small LED
| 4 |
 | 6-pin right angle connector
| 1 |
 | 2.1mm barrel power jack
| 1 |
 | voltage regulator
| 1 |
 | 2N4403 transistor
| 4 |
 | screw terminal block
| 4 |
 | wires (colors may vary)
| 8 |
