Quantity   Component name
12 × SG90 Microservo Or any other model of a small, 9g microservo, SG92R work even better
1 × Arduino Pro Mini 3.3V Arduino Nano 3.3V will work too
1 × 3.7V LiPo Battery Or other power source
1 × Printed Circuit Board https://bitbucket.org/thesheep/tote/src/tip/fritzing/pcb2.zip
1 × Power Switch
7 × 6-pin Male Pin Headers optionally more/other headers
2 × 47kΩ 1206 SMD Resistor optional for the battery monitoring circuit
1 × 47nF 1206 SMD Capcitor optional for the battery monitoring circuit
1 × 1000µF Electrolytic Capacitor optional for avoiding brownouts
1 × IR Signal Sensor optional for remote control
1 × IR Remote optional for remote control
1 × piezo buzzer optional for sound
1 × battery charging circuit optional for built-in battery charging
1 × 2A voltage regulator optional for alternate power sources