HiWonder MechDog Advanced AI Quadruped Robot Kit | Python & AI Vision

The HiWonder MechDog is a palm-sized, open-source quadruped robot dog powered by an ESP32 controller and an ESP32-S3 AI vision module. Ideal for students, educators, and hobbyists, this 8-DOF kit supports Python, Scratch, and Arduino programming to explore advanced robotics, computer vision, and voice interaction.

Agile eight-DOF coreless servo movement

The legs feature a metal linkage structure powered by eight high-speed coreless servos. Driven by advanced inverse kinematics algorithms, the robot achieves precise, biomimetic movement with stepless pitch, roll, and turning adjustments.

Intelligent vision and colour tracking

Equipped with an ESP32-S3 vision module, the robot performs real-time colour recognition, object tracking, face recognition, and line following. High-definition video can be streamed directly to your PC or mobile app over a local WiFi connection.

Ultrasonic ranging and obstacle avoidance

The integrated glowy ultrasonic sensor measures distance to obstacles while providing real-time feedback through customisable RGB light colours. This sensor communicates via an I2C interface to minimise CPU resource usage.

Multi-language programming and open source

The kit supports Scratch block programming for beginners, Arduino IDE for C/C++ development, and Python for complex AI algorithms. Fully annotated source code is provided to help users learn the underlying mechanics.

Real-time IMU self-balancing system

An onboard IMU sensor tracks the robot's orientation and posture in real time. This feedback loop allows the quadruped to adjust its body height and maintain balance dynamically while walking.

Customisable voice and speech interaction

An AI voice interaction module enables voice recognition, voice control, and speech broadcasting up to a five-metre range. Users can program custom wake words, voice commands, and audio alerts.

Extensive micro:bit and hardware expansion

The robot can be paired with a micro:bit for dual-controller setups, or expanded with LEGO blocks, touch sensors, light sensors, and a 2-DOF robotic arm. A robust aluminium alloy frame protects the internal components during experimentation.

Long-lasting high-rate LiPo battery

Powered by a 7.4V 1500mAh 5C high-rate detachable lithium battery, the robot delivers up to 60 minutes of continuous operation. Built-in protection circuitry ensures safe charging and usage.