Overview
The Hiwonder MasterPi AI vision robot arm car combines a Raspberry Pi controller platform, a 5 DOF robotic arm, HD wide-angle camera, and four Mecanum wheels for hands-on OpenCV, Python programming, motion-control, and machine-vision learning. Its omnidirectional chassis can move forward, laterally, diagonally, and rotate in place.
Vision functions support color recognition, color sorting, line following, target tracking, face tracking, gesture recognition, object recognition, and QR code recognition. The arm and camera work together for vision-guided object handling demonstrations.
Key Features
- 5 DOF robotic arm: Equipped with a gripper and all-metal-gear LFD-01M, LDX-218, and LD-1501MG servos.
- 360° omnidirectional drive: Four Mecanum wheels enable multi-directional movement for indoor robot-navigation projects.
- OpenCV vision learning: Supports image-processing activities including color recognition, color sorting, line following, and target tracking.
- Camera-based control: The HD wide-angle camera supports first-person-view operation through the mobile app.
- Multiple control options: Use graphical PC software to adjust servo positions and edit action groups without coding, or use the iOS/Android app to select operating modes.
- Color threshold tool: Fine-tune LAB color-space thresholds visually for color-based vision tasks.
- Ultrasonic obstacle avoidance: Includes an ultrasonic sensor for obstacle-avoidance projects.
- Raspberry Pi platform: Designed around Raspberry Pi 4B or Raspberry Pi 5 with a dedicated expansion board.
Specifications
| Product dimensions | 185 x 162 x 343 mm |
| Weight | 1100 g |
| Body material | Metal bracket |
| Camera resolution | 480P |
| Robotic arm | 5 DOF |
| Controller platform | Raspberry Pi 4B or Raspberry Pi 5 with Raspberry Pi expansion board |
| Battery type | 18650 lithium battery |
| Continuous operating time | 60 min |
| Communication | Wi-Fi and Ethernet |
| Control methods | PC software and iOS/Android app |
| Package dimensions | 33 x 29 x 9 cm |
| Package weight | About 1.6 kg |
LFD-01M Servo Specifications
| Working voltage | 4.8-6 V |
| Speed | 0.12 sec/60° at 4.8 V; 0.10 sec/60° at 6 V |
| Stall current | 700 mA |
| Stall torque | 1.5 kg.cm at 4.8 V; 1.8 kg.cm at 6 V |
| Control method | PWM |
| Rotation range | 0-180° |
| Gear material | Metal |
| Dimensions | 32.5 x 12 x 29.85 mm |
| Weight | 14 g |
| Servo cable length | 26 cm |
| PWM pulse width | 500-2500 us (0-180°) |
Applications
Suitable for Raspberry Pi robotics education, Python and OpenCV practice, robot kinematics, vision-guided color sorting, line-following, object tracking, and mobile robot control projects. For product assistance, contact RobotDoo customer service.
Details
The Hiwonder MasterPi AI Vision Robot combines a camera-equipped robotic arm with omnidirectional Mecanum-wheel mobility.
Camera-based target tracking supports vision-guided interaction with colored objects.
Four Mecanum wheels enable lateral, diagonal, forward, and in-place rotational movement for indoor robotics projects.
OpenCV learning activities include first-person-view control, color sorting, target tracking, and recognition tasks.
Vision-guided color sorting can pair object handling with a marked navigation course.
The camera and gripper work together for vision-guided object handling demonstrations.
Graphical PC software allows servo-position adjustment and action-group editing without coding.
A visual LAB threshold tool helps fine-tune color recognition settings for machine-vision projects.
iOS and Android app controls provide access to selectable operating modes and remote operation.
An ultrasonic sensor supports obstacle-avoidance projects with app-based control.
The 5 DOF arm uses metal-gear servos and a gripper for programmable manipulation exercises.
A dedicated expansion board connects the Raspberry Pi controller platform to the robot's hardware.
The MasterPi robot uses an LDX-218 digital servo in its articulated orange metal bracket assembly.
Wear-resistant nylon Mecanum wheels support the MasterPi robot’s movement across grass, rocks, floors, and paved surfaces.
The MasterPi uses dedicated expansion boards for Raspberry Pi 5 or Raspberry Pi 4B control configurations, with cooling components listed for each.
Raspberry Pi 5 and Raspberry Pi 4B differ in processor, graphics, connectivity, and expansion interfaces for MasterPi configurations.
The MasterPi robot has a wheeled chassis measuring 185 mm long and 162 mm wide, with an overall height of 343 mm.
The HD wide-angle USB camera module uses a fixed-focus 640×480 sensor and includes a mounting bracket for robot integration.
The LD-1501MG metal gear servo supports 500–2500 μs PWM control for a 0–180° operating range.
The MasterPi kit includes a Raspberry Pi 5 board, camera module, lithium battery, charger, wheels, building blocks, cables, and assembly tools.
