The WHEELTEC R3 Series is a high-performance, fully customizable self-balancing robot chassis, purpose-built for ROS robot development, STEM education, university research, robotics competitions, and industrial automation prototyping. Engineered with industrial-grade components and comprehensive development support, this chassis delivers a reliable, all-in-one platform for both entry-level learners and experienced developers to build and test self-balancing robotic systems with ease.

Core Hardware Configuration

High-Strength Chassis Structure

The chassis features a 3mm thick aluminum alloy base plate with an anodized sandblasted finish, delivering exceptional rigidity, corrosion resistance, and durability for long-term use. Pre-drilled mounting holes are compatible with mainstream controllers, sensors, and expansion modules, while the optional 3mm acrylic upper riser plate (available in black, transparent, or proto board versions) expands installation space for additional hardware, enabling flexible customization for complex projects.

High-Precision MG513 Geared Motor System

The chassis is equipped with the WHEELTEC proprietary MG513 series DC geared motor, available with two encoder options to match your precision requirements:

• Hall Encoder Version: 13ppr magnetic induction encoder, compatible with nearly all microcontrollers, delivering stable performance for basic balancing and navigation projects.
• Patented GMR High-Precision Encoder Version: 500ppr giant magnetoresistance encoder, with 38x higher precision than standard Hall encoders (Chinese Utility Model Patent No. 202122109210.2 & 202320641716.4). It combines the magnetic stability of Hall encoders with the high accuracy of photoelectric encoders, delivering exceptional performance for low-speed navigation and high-precision ROS robot applications.

Each motor features an all-metal gearbox (no plastic gears) for maximum reliability, high-quality carbon brushes for extended service life, and a rated power of ~4W, with 12V/8V voltage options to match different power supply setups.

High-Reliability Motor Drive & Power System

• Optional TB6612 Dual-Channel Motor Driver Module: Equipped with a built-in voltage stabilization circuit, eliminating the need for separate logic power supply. It features a built-in voltage detection circuit (compatible with MCU ADC acquisition), and provides multiple protected power outputs: 5V 5A and 3.3V 0.5A, with full compatibility with standard XH2.54 6P encoder motor interfaces.
• Optional Safety-Certified Power Kit: We offer a 12V 2550mAh lithium battery pack with a hard protective case (far safer than traditional rubber-wrapped battery packs), with built-in short circuit, over-current, over-charge, and over-discharge protection. The 18650 cell features an integrated explosion-proof valve, with over 800 charge-discharge cycles (20% capacity decay) and a 3+ year theoretical service life. The kit includes a 3C certified 12.6V 1A charger with full safety protections, ensuring safe and stable charging.

High-Grip Traction System

The chassis is fitted with 65mm high-quality rubber tires, featuring a soft rubber outer tread, sponge inner tube, and flat tread pattern for strong ground grip and stable driving performance on both indoor and outdoor surfaces.

Comprehensive Development Support

Unlike competing products that only provide basic operation guides, the WHEELTEC R3 Series delivers full-stack development resources for in-depth learning and customization:

• Full compatibility with ROS, STM32, and Arduino platforms, with sample codes for register, standard library, and HAL library versions.
• Advanced control algorithms: PID and LQR control options, with Kalman filter, complementary filter, and DMP attitude algorithms built-in.
• Complete mathematical modeling documentation, Simulink simulation files, and code-level video tutorials for the full system, including motor control and self-balancing principles.
• Detailed installation manual and step-by-step assembly guide, with free installation tools (Phillips screwdriver and socket) included for all kit orders.

Full Shipping List

• 2 x MG513 Geared Motors (Hall/GMR encoder optional)
• 2 x 37 Motor Mounting Brackets
• 2 x 6mm Metal Couplers
• 2 x 65mm Rubber Tires
• 1 x Aluminum Alloy Base Plate
• 2 x 35cm XH2.54 6P Double-Ended Cables
• 2 x 20cm XH2.54 6P Single-Ended Cables
• 1 x XH2.54 Right-Angle Header, 1 x XH2.54 Straight Header
• Full set of copper studs and mounting screws
• Optional TB6612 Driver Module, Upper Riser Plate, 12V Battery & Charger Kit
• Free Installation Tools (for kit orders)
• Full Digital Development Resources & Tutorials

Typical Applications

• ROS Robot Development & Education
• University STEM Teaching & Academic Research
• Robotics Competitions (Self-Balancing Robot Category)
• AGV & Automated Guided Vehicle Prototyping
• Smart Home Robot Development
• Automation Control & Embedded System Learning