The myArm 300 Pi is an entry-level, highly flexible 7-DOF (Degrees of Freedom) robotic arm developed by Elephant Robotics. Powered by a Raspberry Pi 4B mainboard and running a customized Ubuntu Mate 20.04 operating system, it offers a PC-like standalone experience, simply connect a monitor, keyboard, and mouse to start developing without an external host computer.
With 7 motion joints, it replicates human arm dexterity, allowing zero-space posture control, elbow angle adjustments, and trajectory management in constrained spaces. It serves as an ideal platform for robotics education, control logic teaching, ROS simulations, and complex kinematic research.
Key Applications and Functions
- Educational Research and Kinematics: Surpasses standard 6-DOF arms by providing 7 degrees of freedom, enabling deep exploration of redundant kinematics, elbow joint posture changes, path planning, and human-arm movement simulations.
- Creative Development: Offers 100 percent compatibility with the myCobot accessory ecosystem for fast structural and software expansion, while keeping hardware interfaces fully open for custom sensor integration.
- Commercial and Industrial Exploration: Supports integration with PCs, industrial control terminals, and mobile AGV platforms (such as myAGV) for commercial exhibition displays, Industry 4.0 demonstrations, and compound robot applications.
- Simulation and Posture Control: Simulates complex joint trajectories for obstacle avoidance, spray painting, welding, and spatial manipulation.
Technical Specifications and Parameters
- Degrees of Freedom (DOF): 7-Axis Moving Joints
- Working Radius / Max Reach: 300 mm
- Payload: 200 g
- Net Weight: 1.5 kg (1500 g)
- Positioning Accuracy / Repeatability: +/- 0.5 mm
- Main Controller: Raspberry Pi 4B (Quad-core Broadcom BCM2711, 1.5 GHz, 4GB LPDDR4 RAM)
- Operating System: Customized Ubuntu Mate 20.04 LTS
- Power Input: DC 12V 5A adapter
- Hardware Expansion: Dual micro-HDMI ports, RJ45 Ethernet port, USB ports, 3.5mm audio jack, GPIO pin header, and LEGO-compatible tool interfaces
Software, Programming and Control Options
The open software framework supports stand-alone operation as well as upper-computer control across multiple platforms.
Programming Support
- Languages: Python, C++, C#, JavaScript, and more
- Visual Programming: Built-in myBlockly graphical drag-and-drop programming environment
- ROS Support: Pre-installed dual-version support for ROS1 and ROS2 for virtual simulation modeling, RViZ visualization, and MoveIt motion planning
- Direct Teaching: Supports hands-on Drag and Teach functionality straight out of the box
Official Management Tool: myStudio
myStudio serves as the primary one-stop software platform for myArm. It handles:
- Firmware updates
- Video tutorial access
- Maintenance, repair guides, and Q and A resources
Compatible Accessories
Fully compatible with the myCobot hardware expansion ecosystem:
- Grippers and End Effectors: Adaptive Gripper, Parallel Gripper, Flexible Gripper, Dexterous Hand, Suction Pump, Dual Vacuum Gripper
- Mounting and Bases: Flat Base, G-Shape Base, Large Suction Cup Base, Cylindrical Flange, Camera Flange
- Utility Holders: Pen Holder, Mobile Phone Holder, Camera Modules
