Quantity   Component name
80 × SMD LED 0603 Can be any color of choosing but avoid frosted/diffused packages which cause light leakage as explained in the project log
1 × ATMEGA88V-10AU AVR Microcontroller which works down to 1.9V. TQFP32 package
1 × 32.768kHz SMD crystal
2 × 22pF 0805 capacitors
3 × SMD tactile push buttons
1 × CR2032 battery retainer
1 × 10uF SMD tantalum capacitor