Elephant Robotics myArm C650

Elephant Robotics myArm C650

The myArm C650 is a universal 6-degree-of-freedom robot motion information acquisition device designed by Elephant Robotics for education, research, and industrial data collection. The “C” in its name stands for Controller, reflecting its primary role as a high-precision teach pendant and data collector.

Equipped with end-effector fingertip controllers and two smart buttons, the C650 outputs endpoint coordinates or joint angles at 50Hz, providing reliable real-time data for motion replication or AI data training. Its 6+1-axis design mimics human arm flexibility for versatile control.

With a 650mm horizontal reach (1,300mm total span) and lightweight 1.8kg profile, it maintains extensive range. All joints feature high-precision digital servo motors with 4096-bit encoders. The modular, LEGO-compatible end-of-arm design allows easy accessory integration.

As a universal control hub, it seamlessly controls machines like the myArm M750, myCobot Pro 630, and Mercury X1. It validates algorithms (e.g., ALOHA), enables remote lab operations, and facilitates programming education by capturing joint angles/velocities in real time while copying operator movements.

Specifications

• Model: myArm C650
• DOF: 6+1 (expandable to 7-DOF data collector)
• Horizontal Reach: 650mm
• Total Span: 1,300mm
• Weight: 1.8kg
• Power Supply: 12V 5A
• Repeatability: ±1mm
• Accuracy: 5–8mm
• Number of Servos: 8 (high-precision digital servo motors with 4096-bit encoders on all joints)
• Rotation Range: ±180°
• End Effector: Two-finger remote control + two custom-button control with data logging support
• USB Connection: Type-C
• Communication Frame Rate: >50Hz
• Main Controller: ESP32 (M5Stack-basic) – 240MHz dual-core, Wi-Fi & Bluetooth, 2.0” IPS LCD @ 320×240, 853 nit
• Auxiliary Controller: ESP32 (Atom) – 4MB Flash, 5×5 LED matrix, extended IO
• Communication Methods: Serial (USB), Bluetooth, Wi-Fi
• Base Mounting: Flanged base with M6 screw mounting
• End Compatibility: LEGO component holes and threaded holes for accessory integration
• 3D Model: STEP file available for download

Features

• Universal Control Hub: Compatible with myArm M750, myCobot Pro 630, myCobot 320 M5, Mercury X1, and other Elephant Robotics products for broad teleoperation capabilities

• Real-Time Motion Data Capture: Joint angles, velocities, and endpoint coordinates acquired at >50Hz for reliable data collection and motion replication

• Human-Like 6+1 Axis Design: Closely mimics human arm flexibility for intuitive, multi-directional control and natural operator interaction

• High-Precision 4096-Bit Encoders: All joints provide accurate position feedback essential for fine-grained motion replication and teaching

• Expandable to 7-DOF: Upgrade from 6-DOF to 7-DOF configuration for broader application needs and more complex motion capture scenarios

• End-to-End AI Training: Supports data training and reproduction workflows compatible with ALOHA and similar robot learning algorithms

• Lightweight & Modular: 1.8kg design suitable for complex operations in education, research, and industrial training environments

• LEGO-Compatible End-of-Arm: Threaded holes enable easy integration of grippers, cameras, and custom accessories

• Triple Connectivity: Serial, Bluetooth, and Wi-Fi communication methods provide flexible options for different development setups

• Dual-Finger Remote Control: Two custom buttons and data logging support allow precise gesture-based control with immediate behavioral feedback

• Real-Time Anomaly Detection: Onboard sensors monitor motion data to ensure safe operation during teleoperation and data collection

Programming Tools and Resources

• Python (pymycobot): Full API library for controlling joint angles, coordinates, grippers, IO, and acquiring motion data. Install via pip or clone from GitHub. PyPI | GitHub

• ROS1 (mycobot_ros): Complete ROS workspace with RViz visualization, common tool commands, and ROS architecture/communication documentation. GitHub

• ROS2 (mycobot_ros2): Full ROS2 workspace with Gazebo simulation, RViz visualization, and multi-distribution support (Foxy/Galactic/Humble). GitHub

• Communication Packages: Serial protocol-based development documentation for direct hardware control and custom integrations. GitBook Developer Guide

• myStudio: Centralized platform for firmware burning/updates, driver installation, environment setup, and robot management. GitHub Releases

• Minirobot: Built-in onboard application software with drag teaching, zero-position calibration, communication relay, and status monitoring via the 3-button base interface and LCD display.

• Open-Source Examples: Python examples for obtaining angle/coordinate data, ATOM button status, IO input status, plus complete remote operation cases with myCobot 320 M5, myCobot Pro 630, and myArm M750. GitBook Cases

• Downloads & Drivers: CP210x/CDM drivers, firmware files, and 3D STEP model downloads. Elephant Robotics Downloads