Quantity   Component name
1 × Atmel Attiny85
1 × 8 ohm 1/2W speaker
2 × Red LED
2 × Yellow LED
4 × 330R resistor
1 × 3k3 resistor Thermal Management and Protection / Thermistors
1 × Momentary tact switch
1 × 470uF capacitor Smaller cap will also do, but that's what I had handy