Components

Spot is comprised of a 3D-printed body, some hardware, and a list of electronic components.

Hardware

Spot is 3D-printed and is a combination of different Spot Micro designs, with some minor modifications. The original design was developed by KDY0523.

The 3D prints are assembled with some additional non-printable components:

These are the electronics I used for mine, and they can easily be swapped to suit your Spot's needs.

Component	Specification	Required	Recommendation
ESP32	Brain	Yes	ESP32-S3 (N8R8) with a camera.
OV2640 or OV5640	Camera	No	120-160°
PCA9685	Servo board	Yes	Add thicker solder traces
12x Servo motors	Actuators	Yes	20kg-35kg with high speed. If they are rated for your battery voltage you can skip the step down module
MPU6050	Inertial measuring unit (IMU)	No	GY-87 or MPU-9250 include magnetometer
HMC5883	Magnetometer	No	GY-87 or MPU-9250 include magnetometer
Power switch	Main power switch	Yes
Power button w/ led	Mode switch controller	No
2x HC-SR04	Ultrasonic Distance Sensor	No
LM2596 or XL4015	DC-DC Stepdown Module	Yes	Should be set a 5V for the ESP32 and peripherals
0.96" SD1306	OLED display	No
SZBK07	20A DC-DC Buck Converter	No	Stepdown to servo voltage. If you select servos rated for you battery voltage, you don't need this.
7.6-8.4V Battery	Battery	No	Im using 4x 18650 in 2s2p configuration, but other people have 2s LiPos.
4x Servo extension cables	Servo extension cables	Yes	You can either buy them or make them with a couple or headers and some cable.

I recommend getting an ESP32-S3 with a camera, allowing for more computation and imaging capabilities.

It means a more responsive robot as it's faster at doing sensor fusion, calculating kinematics and gait planning, and networking.