STEM 2-in-1 Robotic Kit Quadruped Dog Robot and 4DOF Robotic Arm

STEM 2-in-1 Robotic Kit Quadruped Dog Robot and 4DOF Robotic Arm

This 2 in 1 Robotic Arm and Quadruped Dog Kit is a reconfigurable robotics learning platform that allows learners to build and program two different types of robots using the same core components. By reusing the controller, servo motors, and power system, users can explore both mobile robotics and robotic manipulation without needing separate kits.

Designed specifically for beginners, this Arduino-based modular robotics kit provides step-by-step guidance to help users understand robot structure, servo control, and motion logic. By building a walking quadruped robot and a 4-degree-of-freedom robotic arm, learners gain practical hands-on experience in electronics wiring, Arduino programming, and real-world robotics applications.

What You Will Learn with This Kit

• How to control multiple servo motors simultaneously using a PWM servo driver with Arduino
• Fundamentals of quadruped robot mechanics such as gait cycles and joint coordination
• Basics of robotic arm mechanics including degrees of freedom and gripper operation
• Practical experience in Arduino programming and electronics wiring
• How to integrate sensors and write custom control logic for different robot configurations

Quadruped Dog Robot – Hardware Overview

The quadruped dog robot focuses on mobile robotics and coordinated leg movement. It uses a four-leg structure where each leg is driven by a servo motor, enabling walking, turning, and basic gestures through synchronized motion.

Key Hardware Components:

• Main chassis with four legs
• Four SG90 servo motors (one per leg)
• Arduino controller
• 16-channel PWM servo shield
• Ultrasonic sensor for distance detection

Coordinated control of the servos allows the robot to perform actions such as forward walking, backward walking, turning, obstacle avoidance, push-ups, and waving gestures.

4-DOF Robotic Arm – Hardware Overview

The 4-degree-of-freedom robotic arm focuses on manipulation, joint control, and pick-and-place operations. It demonstrates how industrial-style robotic arms operate using multiple independently controlled joints.

Key Hardware Components:

• Base (chassis)
• Shoulder joint
• Elbow joint
• Gripper (end-effector)
• Servo motor-based drive system
• Arduino Nano with Nano Expansion Board

Each servo provides one degree of freedom, enabling precise control of arm movement and object handling. The robotic arm supports multiple control methods including joystick, web, and app-based control.

Features

• 2-in-1 reconfigurable robotics platform using shared hardware components
• Arduino-based control system with PWM servo driver support
• Supports smooth and synchronized control of multiple servo motors
• Modular design for building both a walking robot and a robotic arm
• Sensor integration support for obstacle detection and interactive actions
• Beginner-friendly learning kit with structured tutorials