Quantity   Component name
1 × Arduino Pro Micro or a compatible board
1 × 380 Ohm resistor For the LED
2 × 4.7k Ohm resistor For the I2C
1 × 6x6x7 mm tact switch For pressen'
1 × Arduino Pro Micro case from Shapeways
1 × Hot-snot Is hotglue a component?
1 × 24LC512 Memory ICs / EEPROMs