Quantity   Component name
1 × D1 Mini ESP8266 development board
1 × 3.7V 1S LiPo battery
1 × SPDT Switch
12 × SG90 Microservo
24 × M1.2x4 screws
6 × 10x1 2.54mm pitch male pin header
2 × 8x1 2.5mm female pin header
1 × Battery Holder
1 × (optional) Battery protection circuit
1 × PCA9685 PWM Chip
1 × Custom PCB
2 × Resistor 0805 4.7kΩ