Home Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro

Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro

SKU: Waveshare-30256
Type: M3-S
Sale price 324,45 €
incl. VAT
excl. VAT

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Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro

Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro

Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoArm-M3-S/Pro is a next-generation robotic arm designed for research, education, and innovative applications. Built with serial bus servos, a direct-drive joint design, and powered by the ESP32 main control board, the RoArm-M3 series delivers high precision, strong torque, and versatile expandability. With wireless control, open-source resources, and compatibility with ROS2 and LeRobot, this robotic arm is ideal for developers, students, and professionals seeking a balance of performance, flexibility, and ease of use.

 

Features

  • High-torque serial bus servos with direct-drive design for precision feedback (up to 0.088°).
  • Dual-drive shoulder technology doubles torque, enhancing load capacity.
  • 5+1 DOF structure with a 2-DOF wrist joint for multi-dimensional clamping and operation.
  • ESP32 onboard MCU supporting WiFi, Bluetooth, and ESP-NOW wireless control for low-latency collaboration.
  • Cross-platform Web Application – no installation required, intuitive coordinate control, fully open-source for customization.
  • Open-source development with modular demos, tutorials, and multi-language support.
  • Compatible with ROS2 & LeRobot, enabling AI-driven applications such as imitation learning and reinforcement learning.
  • Lightweight yet durable design – carbon fiber and aluminum alloy ensure stability with payload up to 0.2kg@0.5m.
  • Multiple installation methods and expansion plates for peripherals like cameras, sensors, and custom EoATs.
  • Dynamic external force adaptive control and curve velocity algorithm for smoother, safer movements.


Specifications

Specification RoArm-M3-S RoArm-M3-Pro
DOF 5+1 5+1
Workspace Ø1120mm horizontal, 798mm vertical Same
Operating Voltage 12V 5A, supports 3S Li-ion battery Same
Load Capacity 0.2kg @ 0.5m 0.2kg @ 0.5m
Servo Type ST3215 bus servos ST3235 all-metal bus servos
Torque 30kg·cm @ 12V Higher durability, stable backlash
Joint Feedback Angle, speed, load, voltage, current, temperature Same
Main Control ESP32-WROOM-32 (WiFi, BT, dual-core 240MHz) Same
Wireless Control WiFi, ESP-NOW Same
Wired Control USB, UART Same
Weight 973.5g ±15g 1020.8g ±15g
Clamp Default clamp, customizable EoAT Same
Compatibility ROS2, LeRobot, Arduino IDE Same

 

Application Scenarios

  • STEM Education & Robotics Training – Ideal for schools, labs, and workshops to teach robotic principles.
  • AI & Machine Learning Research – Compatible with LeRobot, supports deep learning, imitation learning, and reinforcement learning projects.
  • Industrial Prototyping – Lightweight and expandable design makes it suitable for automation experiments and mobile platforms.
  • Human-Machine Interaction – Web-based control and adaptive force response enable safe collaboration.
  • Vision-based Applications – Camera integration for object recognition, tracking, and AI-driven manipulation.
  • Multi-device Collaboration – ESP-NOW wireless protocol allows multiple robotic arms to work in sync.

 

Version Options

Provides options for RoArm-M3-S / RoArm-M3-Pro. The RoArm-M3-Pro is equipped with 5x all-metal ST3235 bus servos, offering a more rugged body and stable backlash that won't increase with use, enhancing product durability.

5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm Kit, version options

 

Part List

RoArm-M3-S

RoArm-M3-Pro Robotic Arm Kit

RoArm-M3-Pro

RoArm-M3-Pro Robotic Arm Kit

 

General Driver Board for Robots

Onboard rich interfaces and resources for innovative development and functional expansion

5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm Kit, General Driver Board onboard components

  1. ESP32-WROOM-32 controller module
    Can be developed using Arduino IDE
  2. IPEX 1 WIFI connector
    For connecting WIFI antenna to increase the wireless communication distance
  3. LIDAR interface
    Integrated LIDAR adapter function
  4. I2C peripheral expansion interface
    For connecting with OLED screen or other I2C sensors
  5. Reset Button
    Press and release to reboot the ESP32
  6. Download button
    Press when powering on to enter download mode
  7. DC-DC 5V voltage regulator circuit
    Provides power supply for host computers such as Raspberry Pi or Jetson nano
  8. Type-C port (LADAR)
    LIDAR data transmission
  9. Type-C port (USB)
    ESP32 communication interface, for uploading programs to ESP32
  10. XH2.54 power port
    Support DC 7~13V input, can directly power the serial bus servos and motors
  11. INA219
    voltage/current monitoring chip
  12. Power ON/OFF
    External power supply ON/OFF
  13. ST series serial bus servo interface
    For connecting with ST3215 / ST3235 serial bus servo
  14. Motor interface PH2.0 6P
    Group B interface for motor with encoder
  1. Motor interface PH2.0 6P
    Group A interface for motor with encoder
  2. Motor interface PH2.0 2P
    Group A interface for motor without encoder
  3. Motor interface PH2.0 2P
    Group B interface for motor without encoder
  4. AK09918C
    3-axis electronic compass
  5. QMI8658C
    6-axis motion sensor
  6. TB6612FNG
    Motor Control Chip
  7. Serial bus servo control circuit
    for controlling multiple ST3215 serial bus servos and obtaining servos feedback
  8. TF card slot
    Can be used to store logs or WIFI configurations
  9. 40PIN GPIO header
    For connecting with Raspberry Pi or other host boards
  10. 40PIN extended header
    Easy to use the GPIO pins of Raspberry Pi or other host boards
  11. CP-2102
    UART to USB, for LIDAR data transmission
  12. CP-2102
    UART to USB, for ESP32 communication
  13. Automatic download circuit
    For Uploading programs to the ESP32 without pressing the EN and BOOT buttons

 

Dimensions

5 + 1 DOF High-Torque Serial Bus Servo Robotic Arm Kit, outline dimensions

 

More Detail

Compatible with the popular AI robotic arm project - LeRobot

The Waveshare Robotic Arm RoArm-M3-S/Pro supports the open-source LeRobot framework on Hugging Face, providing pretrained models, datasets, and simulation environments. Combined with NVIDIA Jetson Orin NX or a PC with discrete GPU, users can explore Imitation Learning and Reinforcement Learning projects.

Flexible joints × omnidirectional space

Adopts a 360° rotation base and flexible joints to create an omnidirectional operating space with 1-meter diameter, allowing the Waveshare RoArm-M3-S Robotic Arm to move freely in all directions.

Waveshare RoArm-M3-S Robotic Arm omnidirectional space

2 DOF Wrist Joint + EoAT for flexible clamping

Equipped with a 2 DOF wrist jointRoArm-M3-Pro Robotic Arm enables seamless coordination with the EoAT for multi-dimensional clamping and operation.

RoArm-M3-Pro Robotic Arm wrist joint

Easy to control via Cross-platform Web Application

No App installation required. Access directly via browser. Control the Waveshare Robotic Arm RoArm-M3-S/Pro on mobile, tablet, or PC. Supports secondary development of the open-source Web App for UI customization and new functions.

RoArm-M3-S Web App control

1. General Shipping Information

  • We provide reliable shipping services with a tracking number for each order.
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  • Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
  • In-stock orders are usually dispatched within 1 business day after order confirmation.
  • Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
  • If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.

🚀 Need Faster Shipping?

If you require expedited shipping, please contact our customer support team at info@openelab.io for a customized quote based on your destination.

2. Shipping Rates & Options

Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.

2.1 Germany Domestic Shipping

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0.00 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)
€0.00 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)
€50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)
Over €100.00 Free 1-3 Business Days

2.2 Selected EU Countries / Regions

Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.

Shipping Method Order Value Cost Est. Delivery
FedEx Regional Economy €0.00 - €100.00 €7.95 3-5 Business Days
FedEx Regional Economy Over €100.00 Free 3-5 Business Days

EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)
USPS Ground Advantage €0.00 - €45.00 €4.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0.00 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)
USPS Ground Advantage €0.00 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.

2.4 International Destinations Outside the EU

For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:

Order Amount Shipping Cost
€0.00 - €300.00 €19.95
Over €300.00 Free

For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.

3. Warehouses & Fulfillment

Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.

3.1 Munich Warehouse

For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.

3.2 Arlington Warehouse

For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.

3.3 Shenzhen Warehouse

For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.

4. Inventory, Pre-orders & Split Shipments

  • Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
  • Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
  • Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.

5. Customs, Taxes & Delivery Issues

5.1 Customs and Taxes

For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.

Important Notice for Non-EU Countries:
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.

5.2 Damaged, Delayed, or Lost Parcels

Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.

If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@openelab.io. We will assist you in checking the shipment status with the courier.

5.3 Incorrect Address or Failed Delivery

If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.

6. VAT

For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.

Customer Reviews

Based on 7 reviews
71%
(5)
29%
(2)
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M
Morgan Gray
Well made and easy to integrate

I tested it in a robotics workflow and the mechanical parts felt solid. The high-torque motion and solid mechanical parts were helpful for repeatable motion experiments. Calibration takes patience, but the result was dependable.

Thank you for choosing OpenELAB. We are glad the robotics and motion control kit supported your robot arm, mobile robot and automation projects.

C
Casey Clark
Worked exactly as expected

I tested it in a robotics workflow and the mechanical parts felt solid. The robotics prototyping and high-torque motion were helpful for repeatable motion experiments. Calibration takes patience, but the result was dependable.

Thanks for the review. Practical feedback on the Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro helps makers choose the right Waveshare hardware for robot arm, mobile robot and automation projects.

L
Liam Brooks
Very practical Waveshare module

I tested it in a robotics workflow and the mechanical parts felt solid. The smooth test routines and high-torque motion were helpful for repeatable motion experiments. Calibration takes patience, but the result was dependable.

Thank you for reviewing the Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro. We are glad this robotics and motion control kit worked well for your robot arm, mobile robot and automation projects.

V
Victor Walker
Reliable hardware for my project

I tested it in a robotics workflow and the mechanical parts felt solid. The repeatable control and serial control interface were helpful for repeatable motion experiments. Calibration takes patience, but the result was dependable.

We appreciate the detailed note. The Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro is designed for robot arm, mobile robot and automation projects, and we are happy it matched your setup.

R
Renata Rossi
Nice module for the price

I tested it in a robotics workflow and the mechanical parts felt solid. The smooth test routines and solid mechanical parts were helpful for repeatable motion experiments. Calibration takes patience, but the result was dependable.

Thank you for choosing OpenELAB. We are glad the robotics and motion control kit supported your robot arm, mobile robot and automation projects.