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Seeed Studio SO-ARM101 Low-Cost AI Arm Servo Motor Kit Pro for LeRobot

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SKU: Seeed-114993667
Sale price 328,90 €
incl. VAT
excl. VAT
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Effective Date: December 10, 2025

At OpenELAB, we are committed to providing accurate product descriptions and high-quality electronics. The following policy outlines your rights and obligations, designed to be fair to both our customers and our business operations globally.

1. Warranty Policy

A. Standard Limited Warranty (Global & US)

For customers in the United States, Asia, and other non-EU regions:

  • Warranty Period: OpenELAB provides a 12-month warranty from the date of delivery.

  • Coverage: This warranty covers defects in material and workmanship under normal use.

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If you are a consumer residing in the European Union or the UK purchasing from our global site:

  • Statutory Guarantee: You are entitled to a 24-month statutory guarantee for conformity defects present at the time of delivery, in accordance with EU consumer protection laws.

  • Relation: The Standard Limited Warranty (Section 1.A) applies in addition to, and does not replace, your statutory rights.

C. Warranty Exclusions (Applies to ALL Regions)

Warranty coverage is VOID if the damage is caused by:

  1. Misuse: Incorrect installation, reverse polarity, or exceeding voltage limits.

  2. Unauthorized Modification: This explicitly includes soldering, cutting pins, modifying the PCB, or flashing unauthorized/beta firmware that "bricks" the device.

  3. Physical Damage: Drops, moisture/water damage, or electrical surges (lightning).

  4. Normal Wear & Tear: Consumable parts (e.g., batteries), unless defective upon arrival.

Note: For non-warranty repairs (e.g., customer-induced damage), we may offer repair services for a fee. Shipping and diagnostic costs will be borne by the customer.

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1. Full Refund (100%)

  • The item is Brand New, Unopened, and Unused.

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If the item is returned in a condition that prevents it from being sold as new, OpenELAB reserves the right to deduct a Restocking Fee (for US/Global) or Compensation for Loss of Value (for EU) from the refund amount.
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  • Technical Modification: The device has been soldered, permanently installed, or flashed with unauthorized firmware.

  • Broken Seals: Anti-static bags or security seals have been opened.

Depending on the severity of the usage/damage, the deduction may range from 15% to 50% of the product price. Items damaged beyond repair due to misuse will not be refunded.

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  1. Authorization: Contact us at info@openelab.io before returning any item. Returns without prior authorization will not be accepted.

  2. RMA Number: We will provide you with a Return Merchandise Authorization (RMA) number and the correct return address.

  3. Packing: Ship the item back in its original packaging with the RMA number clearly marked on the shipping label (not on the product box).

  4. Tracking: We strongly recommend using a trackable shipping method. OpenELAB is not responsible for returns lost in transit.
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Seeed Studio SO-ARM101 Low-Cost AI Arm Servo Motor Kit Pro for LeRobot-1

Seeed Studio SO-ARM101 Low-Cost AI Arm Servo Motor Kit Pro for LeRobot

328,90 €

Seeed Studio SO-ARM101 Low-Cost AI Arm Servo Motor Kit Pro for LeRobot is the Pro motor kit version of the SO-ARM101 open-source robotic arm system for LeRobot. It is built for users who want the leader arm + follower arm motor and control hardware for imitation learning, reinforcement learning, teleoperation, and AI robotics development, while sourcing the 3D printed skeleton separately.

The SO-ARM101 Pro series improves on SO-ARM100 with optimized wiring, different leader-arm gear ratios, and support for the newer workflow where the leader arm can follow the follower arm in real time. It is a strong fit for LeRobot experiments, teleoperation, data collection, simulation-to-real workflows, reinforcement learning, imitation learning, and Jetson-based edge robotics.

Important: This SKU is the motor kit only. It does not include the 3D printed skeleton. To build the complete arm structure, you need the separate SO-ARM101 3D Printed Skeleton.

SO-ARM101 motor kit pro overview

Features

  • Designed for LeRobot workflows including teleoperation, data collection, imitation learning, and reinforcement learning.
  • Dual-arm hardware set for one leader arm and one follower arm.
  • Optimized SO-ARM101 leader arm with updated gear ratios for joints 1 to 6.
  • Improved cable routing compared with SO-ARM100 for more stable operation.
  • Leader-following-follower support for newer learning and intervention workflows.
  • Ready for Jetson and PC-based robotics development with UART control and LeRobot tooling.

Specifications

Product Type SO-ARM101 Arm Kit Pro motor kit, without 3D printed parts
Leader Arm Motors 1 x ST-3215-C001 7.4V 1:345 motor for joint 2, 2 x ST-3215-C044 7.4V 1:191 motors for joints 1 and 3, 3 x ST-3215-C046 7.4V 1:147 motors for joints 4, 5, and gripper
Follower Arm Motors 6 x 1:345 follower arm servos, same follower-arm structure logic as SO-ARM100 Pro
Power Supply 5V 4A for the leader arm, 12V 2A for the follower arm
Angle Sensor 12-bit magnetic encoder
Communication UART
Control Method PC
Recommended Operating Temperature 0 C to 40 C

SO-ARM101 Pro learning workflow

Applications

  • LeRobot imitation learning for collecting teleoperation datasets.
  • Reinforcement learning with human intervention and correction.
  • Simulation-to-real robotics workflows with Jetson and LeRobot.
  • AI robotic arm education and research.
  • Low-cost dual-arm teleoperation experiments.

Packing List

  • 3D printed arm parts are not included

7.4v STS3215 Servo Motor 1:345 gear rate

x1

7.4v STS3215 Servo Motor 1:191 gear rate

x2

7.4v STS3215 Servo Motor 1:147 gear rate

x3

12v STS3215 Servo Motor 1:345 gear rate

x6

Servo Driver Board for LeRobot

x2

Stud

x8

Screw

x8

5V Power Supply Cable (Multiple head)

x1

12V Power Supply Cable (Multiple head)

x1

USB-C Cable

x2

DC Power Pigtail Cable

x2

Fixing clip

x4

Other Content

What this SKU includes
This SKU gives you the full motor and control hardware set for both arms, so you can build one leader arm and one follower arm for the SO-ARM101 Pro workflow.

What this SKU does not include
This is not a complete assembled robot arm, and it is not the 3D printed frame kit. If you need the printed structural parts, add the separate SO-ARM101 3D Printed Skeleton.

Power supply note
For the SO-ARM101 Arm Kit Pro, the leader arm uses 5V 4A during calibration and operation, while the follower arm uses 12V 2A. This must be kept correct throughout calibration, testing, and deployment.

SO-ARM101 Pro hardware and deployment

Resources

FAQ

Does this product include the 3D printed skeleton?

No. This SKU does not include the 3D printed skeleton.

What exactly is in the box?

You get 12 servo motors, 2 motor control boards, 2 USB-C cables, 2 power supplies, and 4 table clamps. The structural 3D printed arm parts are not included.

Is this a full assembled robotic arm?

No. This is the Arm Kit Pro motor and electronics kit, not a fully assembled arm.

How many arms does this kit support?

This kit is intended for a dual-arm setup, including one leader arm and one follower arm.

What power supplies are used in the Pro version?

The leader arm uses 5V 4A, and the follower arm uses 12V 2A.

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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
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Non-Continental U.S.
(AK, HI, PR, etc.)		 USPS Ground Advantage €0.00 - €60.00 €6.95 5-9 Business Days
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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.