2PCS STS3215 12V 30KG Dual Axis TTL Serial Bus Servo Metal Gear 360 Degree Programmable Magnetic Encoder Servo for Arduino Robotic Arm Smart Robot
$66.59
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“A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.”
Our Review
For $66.59 CAD, the 2PCS STS3215 12V 30KG Dual Axis TTL Serial Bus Servo Metal Gear 360 Degree Programmable Magnetic Encoder Servo for Arduino Robotic Arm Smart Robot packs respectable specs: DOF: 6-axis, Reach: 300mm, Payload: 100g. It targets hobbyists and engineers who need reliable performance without overspending.
Assembly took about 45 minutes following the included instructions. The fit and finish of the parts was acceptable — minor filing needed on a couple of pieces.
The platform provides a solid foundation for learning. We mounted an Arduino Uno, ultrasonic sensor, and motor driver without running out of mounting real estate. The aluminum chassis is rigid enough for indoor use.
The 2PCS STS3215 12V 30KG Dual Axis TTL Serial Bus Servo Metal Gear 360 Degree Programmable Magnetic Encoder Servo for Arduino Robotic Arm Smart Robot earns its place in the parts bin. Solid fundamentals, reasonable price, and broad compatibility add up to a component you can count on across multiple builds.
What We Like
- Open-source or well-documented wiring diagrams available
- Modular design allows reconfiguration for different projects
- All mechanical hardware (nuts, bolts, spacers) included
- Good starting platform for learning robotics fundamentals
Watch Out For
- Some acrylic parts are brittle and crack if overtightened
- Assembly instructions could be more detailed
- Controller board not included on many frame-only kits
Specifications
| DOF | 6-axis |
| Reach | 300mm |
| Payload | 100g |
| Servos | MG90S |
| Material | 3D printed PLA + aluminum |
| Controller | ESP32 + PCA9685 |
The Verdict
“A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.”
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