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5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm Kit Unleash the Power of Robotic Precision with the RoArm-M3 Series Unrivaled Strength and Flexibility We...

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5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm Kit
Unleash the Power of Robotic Precision with the RoArm-M3 Series
Unrivaled Strength and Flexibility
Welcome to a world of cutting-edge robotics with our RoArm-M3, a 5 + 1 DOF serial bus servo robotic arm built for high-precision tasks and adaptable expansion. Combining robustness and agility, this robotic arm kit is crafted with a high-torque, direct-drive design, enabling a powerful payload capacity in a compact structure. Its 360° omnidirectional base and two degrees of freedom (DOF) wrist joint unleash limitless possibilities in movement and task execution.
ESP32: The Brain Behind the Machine
Powered by the renowned ESP32 microcontroller, the RoArm-M3 series is primed for wireless control, providing a seamless interface with multiple devices and communication protocols. Its compatibility ensures rapid integration with the LeRobot framework, allowing users to leap into AI-driven applications with pretrained models and datasets.
Precision Engineering for Every Task
Tighten your grip on innovation with a robotic arm that responds to your commands with an incredible positioning accuracy of ~ 5mm. The joint direct-drive design means you'll enjoy crystal-clear feedback precision of 0.088° through the 12-bit high-precision magnetic encoder, while the pioneering dual-drive technology in the shoulder enhances torque, ensuring every movement is both powerful and graceful.
Wireless Wonder
Communication is key for effective control. Lead the way with ESP-NOW wireless control for low-delay, versatile collaboration amongst devices. Whether broadcasting to a fleet of robotic arms or engaging in precise one-to-one controls, you have command at your fingertips.
Supports Secondary Development for Customized Solutions
The RoArm-M3 is more than just a robot arm—it's a platform for innovation. Enjoy complete access to open-source control codes and interface documentation, enabling tailored development in multiple languages and devices. Forge new functions, add peripherals, or integrate cameras with ease thanks to extensive onboard resources.
Ready to Use Anywhere
From desktops to complex installations, this robotic arm adapts to your environment. It's effortless to mount securely on various surfaces, and its comprehensive web application means you can take control without any prerequisite app installation.
In the Box
- RoArm-M3 series robotic arm (variant chosen) - ST3235 all-metal bus servos (Pro model) - Expansion plates and EoAT - Wrist joint components - Full suite of sensors including electronic compass and motion sensor - General driver board - Camera holder - Various cables, connectors, and assembly tools
Specifications at a Glance
- 5 DOF + additional EoAT flexibility - Load capacity: [email protected] - Precise servos with feedback - Robust ESP32-WROOM-32 main controller - Wireless modes: 2.4G-WiFi, ESP-NOW - Weight: 973.5g±15g (Standard), 1020.8g±15g (Pro)
Learn and Expand
Jump into the vast world of robotics with rich graphic and video tutorials, comprehensive unit examples, and hands-on application scenarios. Elevate your experience with ROS2 compatibility, and use the LeRobot platform for further exploration into deep learning and reinforcement learning.
Invest in your Ideas
Whether you're a seasoned developer or a curious novice, the RoArm-M3 series balances performance and user-friendliness to deliver a transformative tool for education, research, and innovative enterprise.
Craft your path to robotic mastery with the RoArm-M3 series: the cornerstone of your automation ambitions.

Jargon buster

Plain-language definitions for the technical terms used above.

5G
A mobile network standard used for high-speed wireless data links. If a project uses a 5G gateway, its power system must be able to supply enough current reliably for outdoor or remote operation.
encoder
A device attached to a motor or shaft that reports movement, such as rotation steps or position. In a pump system, an encoder can help measure or control how much the motor has turned, which affects how repeatable the watering amount can be.
ESP32
ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
microcontroller
A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
servo
A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
Torque
A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
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