5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm Kit, Based On ESP32, Compatible With LeRobot

RoArm-M3

5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm

Supports flexible expansion and secondary development

* for reference only, please refer to the Package Content for the detailed part list

Product Introduction

RoArm-M3 series is a 5 + 1 DOF smart robotic arm designed for innovative applications. Adopts lightweight structure design with an effective payload of 0.2kg@0.5m, it can be flexibly mounted on various mobile platforms. Adopts a 360° omnidirectional base combined with five flexible joints to create a workspace with 1-meter diameter.

The joint direct-drive design enhances repositioning precision and also improves structural reliability, with innovative dual-drive technology doubling the shoulder joint torque. Onboard ESP32 MCU main control module, supports multiple wireless control modes, and provides control interfaces and rich communication protocols for easily connecting to various devices.

Provides a user-friendly and cross-platform WEB application that integrates a simple and visualized coordinate control mode, making it easier to get started. Comes with rich graphic and video tutorials to help you learn and use it quickly. Compatible with ROS2 and various host computers, supports various wireless and wired communication modes. Comes with expansion plates, supports customizing the EoAT (End of Arm Tooling) to meet innovative application requirements.

At the same time, the RoArm-M3 series also supports the popular AI robotic arm project LeRobot, integrating its pretrained models, datasets with demonstrations, and simulation environments, providing strong support for research directions such as Deep Learning, Imitation Learning, and Reinforcement Learning. By utilizing the demos and algorithm libraries of LeRobot, developers can quickly deploy intelligent algorithms onto the RoArm-M3, further expanding the possibilities for innovative applications.

RoArm-M3 series achieves an excellent balance between lightweight, user-friendliness, expandability, and open innovation, it is a multi-functional robotic arm that integrates intelligent control, human-machine interaction, and customizable development. Ideal for applications that require a combination of flexibility, expandability, and user-friendliness.

Parameter Comparison

* Not including the weight of the table edge fixing clamp (290±10g).

Flexible joints × omnidirectional space

Adopts 360° rotation base and flexible joints to create an omnidirectional operating space with 1-meter diameter, allowing the Robotic Arm to move freely in all directions

2 DOF Wrist Joint + EoAT For More Flexible Clamping

Equipped with 2 DOF wrist joint with pitch + horizontal rotation support, enables seamless coordination with the EoAT for multi-dimensional clamping and operation

Easy to Control Via Cross-Platform Web Application

No App installation required, access after entering the address. Allows users to connect and control RoArm-M3 via mobile phones, tablets and computers by clicking the buttons on the Web App. Supports secondary development of this open-source Web App to customize the user interface and add new functions.

Completely Open Source for Secondary Development

Completely open source for the control codes and communication interface documents of RoArm-M3 series, supports multiple languages and devices for secondary development. Provides modularized demos and tutorials for zero-based users, easy to get started.

Joint Direct-Drive Design - The Feedback precision is up to 0.088°

The joint angle feedback can be obtained directly via the 12-bit high-precision magnetic encoder without any reduction groups, which is more accurate, and the actual position of the current target point can be calculated based on the joint angle feedback.

Innovative Dual-Drive Technology Doubles the Shoulder Joint Torque

We have developed a dual-drive control algorithm that allows the two servos at the shoulder joint to coordinate their output torque effectively, significantly enhancing the power and the overall load capacity of RoArm-M3 Series

Direct-Drive Clamp Enables Precise Force Control

The direct-drive clamp design allows precise control of the clamping force in the program, suitable for clamping delicate objects without applying excessive force

Dynamic External Force Adaptive Control

After enabling this function, you can limit the maximum torque for each joint. When the external force applied to the joint exceeds the torque threshold (configurable), the robotic arm will rotate in response to the external force, and will return to the specified position when the external force decreases below the torque threshold.

One-Click Automatic Recording - Easy to Create Actions

RoArm-M3 can save JSON instructions for robot control as task files. The task files can be saved in the Flash of ESP32, which will not be lost in case of power loss. The robotic arm can perform complex and repetitive operations by calling these task files.

Accurately Reach the Target by Entering the Coordinates

Open source for inverse kinematics control algorithm in the three-dimensional Cartesian coordinate system. After entering the target position, the robot arm can accurately reach the target point by using the inverse kinematics function to calculate the rotation angle of each joint.

Curve Velocity Control for Smoother Movement

We use the curve velocity control algorithm to make the robotic arm move smoother and more naturally, without oscillations during start and stop

Supports Leading-Following Control Mode Based on ESP-NOW

In the Leading-following control mode, the Leader robotic arm will send its joint angle information to other robotic arms via ESP-NOW communication. The other robotic arms which are in ESP-NOW Follower mode will imitate the same actions as the Leader in real time.

Multiple Installation Methods for Integrating into Your Application

Provides multiple installation schemes and related secondary development resources, suitable for different usage scenarios and can be flexibly integrated into your projects and applications

General Driver Board for Robots

Onboard rich interfaces and resources for innovative development and functional expansion

Diversified Onboard Resources Supports Function Expansion

Integrated with INA219 battery voltage Monitoring and 9-axis IMU sensor, supports function expansion and innovation

Mouse Drag-and-Drop Interaction

Provides Web applications and desktop software (open-source programs developed by Python), supports setting action instructions when the mouse is pressed and released to control the robotic arm flexibly

Specifications

Product & Packaging show

Dimensions

Resources & Services

WIKI: www.waveshare.com/wiki/RoArm-M3

Package Content

Weight: 2.36 kg

RoArm-M3-Pro