Waveshare 5+1 DOF High-Torque Robotic Arm Kit RoAmm-M3-S/Pro
Shipping from China within 5–10 working days
- During check out, you can choose direct shipping from China, or let us import the order to our EU/US office first and ship it to you locally.
- Import customs clearance and VAT are fully handled by us.
Need a larger quantity?
Need bulk pricing?
Get a formal quotation with lead time and volume pricing.
For universities, companies, distributors, and project orders.
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.

Part List
RoArm-M3-S

RoArm-M3-Pro

General Driver Board for Robots
Onboard rich interfaces and resources for innovative development and functional expansion

-
ESP32-WROOM-32 controller module
Can be developed using Arduino IDE -
IPEX 1 WIFI connector
For connecting WIFI antenna to increase the wireless communication distance -
LIDAR interface
Integrated LIDAR adapter function -
I2C peripheral expansion interface
For connecting with OLED screen or other I2C sensors -
Reset Button
Press and release to reboot the ESP32 -
Download button
Press when powering on to enter download mode -
DC-DC 5V voltage regulator circuit
Provides power supply for host computers such as Raspberry Pi or Jetson nano -
Type-C port (LADAR)
LIDAR data transmission -
Type-C port (USB)
ESP32 communication interface, for uploading programs to ESP32 -
XH2.54 power port
Support DC 7~13V input, can directly power the serial bus servos and motors -
INA219
voltage/current monitoring chip -
Power ON/OFF
External power supply ON/OFF -
ST series serial bus servo interface
For connecting with ST3215 / ST3235 serial bus servo -
Motor interface PH2.0 6P
Group B interface for motor with encoder
-
Motor interface PH2.0 6P
Group A interface for motor with encoder -
Motor interface PH2.0 2P
Group A interface for motor without encoder -
Motor interface PH2.0 2P
Group B interface for motor without encoder -
AK09918C
3-axis electronic compass -
QMI8658C
6-axis motion sensor -
TB6612FNG
Motor Control Chip -
Serial bus servo control circuit
for controlling multiple ST3215 serial bus servos and obtaining servos feedback -
TF card slot
Can be used to store logs or WIFI configurations -
40PIN GPIO header
For connecting with Raspberry Pi or other host boards -
40PIN extended header
Easy to use the GPIO pins of Raspberry Pi or other host boards -
CP-2102
UART to USB, for LIDAR data transmission -
CP-2102
UART to USB, for ESP32 communication -
Automatic download circuit
For Uploading programs to the ESP32 without pressing the EN and BOOT buttons
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.
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.
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.
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- 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.
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.





