Quantity   Component name
2 × 10K Resistor Resistor
1 × 20K Resistor Resistor
1 × 22K Resistor Resistor
1 × Operationnal amplifier LM358 Op-amp
1 × 24 Leds Adafruit ring Leds from Adafruit
1 × Bluetooth Headset Explorer 10 - PLANTRONICS Bluetooth Headset
1 × Arduino Micro Card Arduino Micro
3 × 2.2 µF Capacitor Capacitor
1 × 1K Resistor Resistor