Robots that use the Feetech STS3215 servo
A serial bus servo from Feetech with a magnetic encoder, the actuator in the SO-100 family of arms and many robots derived from it.
9 robots in the atlas list it in their bill of materials, 73 units across the rows below. Quantities are what each source lists; a row can be a set or kit, so read the row name with its number.
Which robots use the STS3215
| Robot | BOM rows | Cost | DoF | Hardware license | Sim model | Score |
|---|---|---|---|---|---|---|
| SO-101Manipulator |
| $122source total, follower arm only | 6 | Apache-2.0Commercial use OK | URDF | 83 |
| SO-ARM100 / SO-ARM101 (Standard Open Arm)ManipulatorDeprecated |
| $123source total, follower arm only | 6 | Apache-2.0Commercial use OK | URDF | 83 |
| LeKiwiMobile manipulator |
| $499source total, 5V build, including the SO-101 leader and follower arm set | 9 | Apache-2.0Commercial use OK | URDF | 80 |
| PingTi ArmManipulator |
| $261source total, single PingTi arm: 2 STS3250, 6 STS3215, Feetech USB board, clamps, Dupont wire; excludes power supply and printed parts | 6 | Apache-2.0Commercial use OK | URDF | 73 |
| BambotMobile Manipulator |
| $300estimate, approximate upstream BOM total; power bank listed separately | 15 | Apache-2.0Commercial use OK | URDF | 65 |
| Open Duck MiniBiped |
| €398source total, base robot per the BOM sheet | 16 | Apache-2.0Commercial use OK | URDF | 63 |
| PincOpenParallel gripper |
| €26source total, standalone gripper: 11 PLA printed parts, Feetech STS3215, servo control board, pins, plain bearings, screws, M3 inserts | 1 | CC-BY-SA-4.0Commercial use OK | Onshape | 60 |
| Moss v1 Robot ArmsManipulatorDeprecated |
| $288source total, two-arm leader and follower set, README US prices, excludes printing | 6 | Apache-2.0Commercial use OK | none published | 57 |
| HOPEJrHumanoid |
| $3kestimate, announced target price for the full humanoid (secondary report) | 66 | Apache-2.0Unknown or unclear | URDF | 53 |
How this list is built
BOM rows that name the STS3215 (any voltage or gear ratio). Brackets, horns and servo controller boards are not counted.
A row counts when its part name names the STS3215, or when its specification does and the part name is generic (a compute board, a servo set). Nothing is inferred beyond the row text: a robot that uses the part but does not list it in its bill of materials is not here.
In 3D
Renders come from each project's own source files.
