Research and development transport robot / AGV: Equipped with two drive wheels mounted at the front and rear center of the body, capable of pivoting in place around the center of the body.
This is a derivative model of the already released "Megalover Ver.3.0," equipped with a battery that has approximately five times the capacity compared to previous models. Additionally, by placing two drive wheels at the front and rear center of the body, it enables pivot turns around the center of the body. This product balances stable operational performance provided by the large-capacity battery with a structural design that allows for stable and reliable turning even when many devices are mounted. It is suitable for serious demonstration experiments aimed at practical application and for research and development purposes that require long operational times. 【Features】 ■ Drive wheels are positioned at the center of the body, enabling zero-radius turning ■ Equipped with a large-capacity Li-Fe battery, extending operating time ■ Control via wired/wireless connection is possible ■ Programmable with Arduino IDE ■ Adopts an easily expandable aluminum frame ■ Standard equipped with an emergency stop switch ■ Compatible with control via ROS (ROS 1, ROS 2) ■ Supports a variety of optional accessories
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basic information
【Product Specifications】 ■Size: W437×L362×H270 (mm) *Vehicle height may vary depending on suspension condition ■Weight: Approximately 23.5kg ■Maximum Speed (measured value): 1.6m/s ■Load Capacity: Approximately 40kg ■Material: Aluminum ■Battery: 24V 60Ah (1440Wh) Li-Fe battery ■Drive System: 2-wheel drive, 4 casters (all equipped with suspension) ■Wheel Diameter: 140mm ■Motor: BLDC motor 40W×2 ■Control Board: VS-WRC058c ■ROS Compatibility: Compatible with ROS 1 and ROS 2 ■SDK: Arduino library for Megarover S40A-LB, ROS package ■Included Samples: ・Arduino Library Wheel control Various communication functions, etc. ・Sample Code for ROS 1 Control from gamepad Control from mouse (touchpad) SLAM (gmapping) Navigation ・Sample Code for ROS 2 Communication with rover Odometry acquisition Control from mouse (touchpad) Other sample programs for various options
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Applications/Examples of results
This is a derivative model of the already released "Megalover Ver.3.0," equipped with a battery that has approximately five times the capacity compared to previous models. Additionally, by mounting two drive wheels at the front and rear center of the body, it enables pivot turns around the center of the body. 【Options List for ROS-Compatible Transport Robot】 By requesting at the time of order, we will ship the robot with various options installed. - LRF Option (TG30) - Bumper Option - Power Supply Board Option for Expansion Devices - Installation of Raspberry Pi 4B 4GB Version - ROS PC Option - Camera Bracket Option - Depth Camera Option - Remote Control Option (without PC) - Remote Control Option (with PC) - Pan-Tilt Device Option (without camera) - Pan-Tilt Device Option (with camera) - Robot Arm AMIR 740 - Lift Option - @mobi Compatible Hardware Set 【Use Cases】 Research and development robots, transport robots, two-wheel drive robots, autonomous robots, conveying robots, AGVs, etc. *For more details, please feel free to contact us.
Detailed information
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In the Megarover S40A-LB, two drive wheels are centrally positioned in relation to the front and rear of the vehicle body. This structure allows for rotation on the spot around the center of the vehicle body (in the standard model, the Megarover Ver.3.0, the position of the drive wheels is not at the center in the front-rear direction, so the axis for rotation on the spot is not at the center of the vehicle body). This design enables more stable operation when the entire robot body becomes larger, such as when carrying numerous devices. Additionally, like the Megarover Ver.3.0, the drive wheels are standard wheels, allowing for stable and quiet operation. Equipped with a 1440Wh (24V 60Ah) Li-Fe battery, the battery capacity has been expanded to about five times that of the basic model, the Megarover Ver.3.0, which has a capacity of 288Wh. In the Megarover S40A-LB, this allows for extended operation even when carrying many expansion devices.
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The Megalover S40A-LB supports wireless communication via Wi-Fi and wired USB serial communication. By using specified commands, it can be controlled from various devices such as PCs and tablets. Additionally, the wireless controller for robots, "VS-C3," is included as standard, allowing the main unit to be operated wirelessly without connecting to a PC. It can also be moved forward and backward and rotated using an analog stick, making it usable for manual operation for motion confirmation and as an emergency control method.
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The control board "VS-WRC058c" equipped in this product features the ESP32-WROOM-32 microcontroller, allowing users to create control programs using the Arduino IDE. Sample code is provided with the product in the form of an Arduino library, enabling users to customize the firmware themselves. *Note: When programming the VS-WRC058 using the Arduino IDE, an environment with Arduino IDE version 1.8.13 or higher is required.*
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This product comes standard with an "emergency stop switch." Additionally, the installation position of the emergency stop switch can be freely changed as long as there are no issues with wiring length or interference with other devices. It is assumed that users will replace and use it according to the actual operational conditions and the installation status of any additional expansion devices.
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The Megarover S40A-LB supports ROS 1 and ROS 2 message communication, allowing for ROS message communication using rosserial or micro-ROS by connecting to a device running ROS via Wi-Fi or USB cable. The sample firmware enables sending movement speed command values to the mecanum rover using geometry_msgs/Twist or geometry_msgs/msg/Twist types, as well as retrieving current speed and battery voltage from the mecanum rover. Additionally, by modifying the firmware, users can send and receive any desired messages beyond those mentioned above. Please note that you will need to prepare a separate device to run ROS. The recommended operating environment for the devices we suggest is as follows (additional setup for libraries not included with this product may be required).
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Structure diagram
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Outline dimension drawing
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Company information
Vstone Co., Ltd. is a manufacturer that develops and produces communication robots, bipedal robots, research and development robots, and robot sensors. In addition to launching the world's first home-use bipedal robot kit "Robi M," the company has achieved five consecutive victories at the RoboCup World Championship, demonstrating its solid technological capabilities. In recent years, Vstone has also developed comprehensive technologies for building not only the hardware of communication robots but also software and cloud infrastructure, continuously releasing various products aimed at realizing a society where humans and robots coexist.