Quantity   Component name
1 × ATtiny85 Microcontroller
1 × Bourns 3314J-1-204E potmeter
2 × BZX84 3.6V Zener
1 × Hirose ZX62-AB5PA Micro USB
1 × KSSG23J12 Piezo buzzer
1 × Littlefuse NANOSMDC050F/13.2-2 Polyfuse
1 × Keystone 3002 Battery holder