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Free Standard Shipping for orders over $30 USD (Most of USA and Canada ) - Size and weight limits may apply.

SO-ARM101 Pro Servo Motor Kit (Printed Parts Not Included)

Original price $460.04 - Original price $460.04
Original price
$460.04
$460.04 - $460.04
Current price $460.04

Shipping: because of its size and weight, this item is not included in the free shipping offer. Shipping is calculated at checkout.

This is the motor and electronics set for building your own SO-ARM101 leader and follower arms. It includes all twelve servos and both driver boards, but not the 3D-printed structural parts or the camera. Choose it if you already have printed parts or plan to print them.

What you can build

  • Building SO-ARM101 arms from your own printed frames
  • Replacing or upgrading servos on an existing build
  • Custom robot arm designs using STS3215 servos

Key specifications

Servos 12x Feetech STS3215 with 12-bit magnetic encoders
Leader set 7.4V: 1x 1:345, 2x 1:191, 3x 1:147
Follower set 6x 12V, 1:345
Control UART servo driver boards (2)
Power 5V 3A (leader), 12V 2A (follower)

Compatible software and platforms

Hugging Face LeRobot and Seeed SenseCraft Robotics.

What's in the box

  • 7.4V STS3215 servo 1:345 (1)
  • 7.4V STS3215 servo 1:191 (2)
  • 7.4V STS3215 servo 1:147 (3)
  • 12V STS3215 servo 1:345 (6)
  • Servo driver boards for LeRobot (2)
  • Studs (8) and screws (8)
  • 5V and 12V power supply cables with multiple heads
  • USB-C cables (2)
  • DC power pigtail cables (2)
  • Fixing clips (4)

Buy separately

  • 3D-printed structural parts for both arms
  • USB camera
  • Assembly hardware beyond the screws listed
  • Computer to run LeRobot

Setup

Print the arm parts from the open-source files, assemble following the SO-ARM101 guide, then calibrate in LeRobot. Seeed estimates 8 or more hours.

Specifications and package contents are from the manufacturer's product page and may change between production batches.

Works well with