R550 Robot Chassis Robot Car Chassis (Mecanum Wheel Version w/ Electronic Control Swing Suspension)

R550 Robot Chassis Robot Car Chassis (Mecanum Wheel Version w/ Electronic Control Swing Suspension)

Description:
The platform is developed to meet the underlying needs of ROS development, offering a selection of chassis structures including Ackerman/differential, Mecanum wheels, omni wheels, tracks, and four-wheel drive. The electronic control system is shared across all types. Users can control the robot car's speed via serial port or CAN. It has built-in kinematic analysis and can output data such as odometry and IMU information. Combined with your Raspberry Pi or other main controllers, you can easily build a ROS robot.

Features:
WHEELTEC R550 ROS Robot Chassis
* Supports Bluetooth wireless programming
* GMR encoder
* Real-time operating system
* Odometry/IMU output
* CAN/Serial port control
* Built-in PID controller
* FreeRTOS system
* Lithium battery with protection
* Textbook-level development manual
* Code-level video tutorials provided

Patented Mecanum Wheel Chassis Technology
* All chassis are manufactured with full metal construction.
* The Mecanum wheels are made of metal, providing a substantial improvement in precision and durability compared to typical plastic Mecanum wheels, making them especially suitable for ROS robots. Additionally, the Mecanum wheel chassis is equipped with a high-precision suspension system normally found only in high-end, premium chassis.
* The clamp-type coupling is applied to the R550 Mecanum wheels. You no longer need to worry about wheels falling off!

High-Precision GMR Encoder
* The newly upgraded 500-line AB-phase GMR high-precision encoder offers precision more than 38 times greater than Hall encoders (most similar products on the market use Hall encoders). Robots equipped with the GMR high-precision encoder perform exceptionally well in low-speed navigation.
* Encoder Type: GMR (Giant Magneto-resistive)
* Rated Torque: 1 kg.cm
* Stall Torque: 4.5 kg.cm
* Gear Ratio: 1:30
* Rated Current: 360 mA
* Stall Current: 3.2 A
* Rated Voltage: 12 V
* Rated Power: 4.32 W

High-Quality Lithium Battery with Protective Casing
* Most smart robotic vehicles on the market use simple lithium battery packs wrapped in rubber, which have poor safety performance and are unattractive. Leveraging its scale advantage, WHEELTEC mass-produces lithium batteries with protective casings according to commercial robot standards. The batteries are equipped with built-in protections such as short-circuit, overcharge, and over-discharge safeguards, greatly enhancing safety.

Advantages of the Lithium Battery Compared to Polymer Batteries
* 18650 battery cells are equipped with built-in explosion-proof valves. When internal pressure becomes too high, the valve will pop out and the fuse at the top will melt to release the pressure. In contrast, polymer batteries will continue to expand and swell under high pressure, posing risks of rupture and explosion.
* The 18650 batteries can endure over 800 charge and discharge cycles with only a 20% capacity loss, giving them a theoretical service life of more than 3 years.

Magnetic Mount for Quick Battery Replacement
* The battery is secured to the chassis via magnetic attachment. During normal use, the magnetic force combined with a positioning block at the base ensures the battery remains firmly in place.
* Note: To remove the battery, simply lift it forcefully. This allows for quick battery replacement, greatly reducing downtime caused by charging or battery swaps.

Supports USB Wireless Controller
* Reserved USB wireless controller receiver socket. Users can control speed and steering using the USB wireless controller, with the joystick allowing for continuous speed adjustment.

Robot Chassis Functions
* ROS Serial Communication (Basic Layer)
* Reserved CAN Communication Interface
* IMU and Odometry Data Feedback
* Battery Voltage Monitoring and Alarm
* One-Click Serial Port Download
* Gyroscope Zero Drift Clearing
* Kinematic Analysis for Scenario-Based Robot Chassis Movement
* Model Aircraft Remote Control Support
* Common Circuit Protection Features
* APP Gravity Sensing Control
* APP Adjustment of PID Parameters

Supports Bluetooth Wireless Code Programming
* The Bluetooth module provided with the robot chassis not only allows for remote debugging of the robot but also supports the use of the dedicated Bluetooth programming host developed by WHEELTEC for code flashing. The entire flashing process takes only a few seconds, greatly facilitating secondary development.

Provides Source-Level Video and Documentation Tutorials
Including but not limited to the following materials:
* Basic ROS Video Series
* Detailed Video on ROS SLAM Principles and Algorithms
* ROS Functional Development Code-Level Video Tutorials
* Basic ROS2 Learning Video Tutorials
* ROS2 Functional Development Code-Level Video Tutorials
* ROS2 Microphone Array Tutorial Video
* Deep Learning Tutorial for Autonomous Driving Sandbox Scenarios
* Moveit Robotic Arm Video Tutorial
* Kinematic Model for Wheeled Mobile Robots Video Tutorial
* STM32 Low-Level Source Code and ROS Communication Video Tutorial
* Autonomous Driving 3D Reconstruction Development Video Tutorial
* Basic Ubuntu Tutorials for ROS

Battery Parameters:
* Battery Model: E351S
* Battery Name: 12V Safety Lithium Battery Pack
* Battery Capacity: 5100mAh
* Charging Current: Recommended 2A
* Maximum Continuous Discharge Current: 6A
* Maximum Peak Discharge Current: 15A
* Battery Charge/Discharge Connector: DC5.5-2.1 Female
* Cut-off Voltage: 9V
* Nominal Voltage: 10.8V
* Fully Charged Voltage: 12.6V
* Dimensions: 85.6*61.6*42mm
* Weight: 377g
* Battery Protection: Short-circuit, over-current, overcharge, and over-discharge protection. It supports charging while in use. Built-in safety valve.

Hardware List:
* USB Wireless Controller (Only for R550 Series Chassis)
* C30D STM32 Main Control Board
* OLED Display
* Bluetooth Module

C30D STM32 Main Control Board:
* The motherboard is designed for smart robot cars and ROS development. One board can control multiple mainstream robot chassis types, including Ackerman, differential, Mecanum, omni-wheel, and tracked, with corresponding code provided. The motherboard can communicate with external devices via serial port or CAN and provides a 5V 5A interface to power devices like Raspberry Pi and Jetson Nano. Both the code and schematic are fully open-source.

Advantages of C30D STM32 Main Control Board:
* The carefully designed mini main control board matches the size and mounting holes of the Raspberry Pi.
* Main Control Chip: 100-pin STM32F407 with excellent expandability
* Remote Control Interface (for model aircraft): Supported
* Download Interface: Serial port one-click download or supports SWD interface download
* External Power Supply: Dual 5V 5A outputs
* Expansion Interfaces: CAN, CCD, electromagnetic line-following, etc.
* GPIO Reserved Pins: Dozens
* Reserved Servo Interfaces: 6 servo interfaces reserved (can connect a 6DOF robotic arm)
* Reserved Serial Ports: 4 serial ports
* Protection Circuit: Overheat protection, short-circuit protection, over-current protection
* Board Layers: Industrial-grade 4-layer board

R550 Mecanum Wheel Version Chassis:
* 12V 30F MG513 Motor x4
* 75mm All-Metal Mecanum Wheel x4
* Upper All-Metal Plate x1
* Swing Suspension Mechanism (Set)
* Hexagon Wrench x1
* 37 Motor Bracket x4
* Clamp-Type Coupling x4
* All-Metal Bottom Plate x1
* Standard Parts and Connectors (Several)
* Small Screwdriver x1

Electronic Control:
* STM32F407VET6 Main Control Board
* 12V 5100mAh Safety Lithium Battery x1
* 12.6V Fast Charging Charger with 3C Certification x1
* Battery Magnetic Base x1
* USB Wireless Controller x1
* Bluetooth Module x1
* OLED Display x1
* Data Download Cable x1

Packing List:
* 1 x Set of Robot Car Chassis (Mecanum Wheel Version)

Packaging Details (for Mecanum Wheel Version)
* G.W.: 3kg

Note:
* The circuit boards, batteries, and chargers for robots with different structures are the same; only the chassis is different.
* The product will be assembled, debugged, and shipped, so it is ready to use upon arrival.