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The ST3215-C018 is a high-torque smart servo motor designed for precise motion control in robotics and industrial automation. It operates at 12V and delivers a stall torque of up to 30 kilogram-centimetres.
It supports full 0 to 360 degree angle control along with multi-turn continuous operation. TTL-based communication enables precise control and real-time feedback, and a 12-bit magnetic sensor gives accurate position detection.
The title also describes a dual-shaft design with metal gears, and the servo runs from 4V to 14V.
30kg.cm stall torque: for demanding motion tasks.
Full rotation and multi-turn: 0 to 360 degree angle control and continuous operation.
TTL communication: precise control and real-time feedback.
12-bit magnetic sensor: accurate position detection.
Wide voltage: 4V to 14V.
Dual shaft and metal gears: per the product title.
Compact: 45.2 x 24.7 x 35mm and 55g.
A serial bus servo is a smart actuator: instead of a single PWM wire, it has a data line on which a controller sends commands and reads feedback. Many servos can share one data wire, and each one has its own ID number, so a robot arm with a dozen joints needs only a single cable run.
The controller can read back position, speed, load, voltage, current and temperature from each servo, which makes it possible to build closed-loop systems and to detect a stalled or overheating joint. Most bus servos are set up with a small configuration tool that assigns the ID and the communication speed.
Match the servo's supply voltage and the logic level of the bus to your controller, use an adapter board made for the protocol, and give the servos a dedicated power supply that can deliver their stall current so the voltage does not drop when several servos move at once.
Robot arms and legged robots
Industrial motion systems
Continuous rotation drives
Multi-servo bus networks
Humanoid and hobby robotics
The listing gives an operating voltage of 4 to 14V, a no-load speed of 0.222s/60 degrees at 12V, a stall current of 2.7A at 12V, a communication speed of 38400bps to 1Mbps, a size of 45.2 x 24.7 x 35mm and a weight of 55 plus or minus 1g.
The page does not list a package contents section. The title uses STS3215 while the page text uses ST3215.
Model: ST3215-C018
Operating voltage: 4-14V
Stall torque: up to 30kg.cm at 12V
No-load speed: 0.222s/60 at 12V
Stall current: 2.7A at 12V
Communication speed: 38400bps-1Mbps
Position sensor: 12-bit magnetic
Size: 45.2 x 24.7 x 35mm
Weight: 55 +/-1g
1 x ST3215-C018 serial bus servo motor
Robotics builders who need a strong serial bus servo with a magnetic encoder and 360-degree range.
Up to 30kg.cm at 12V.
4V to 14V.
Yes, it supports multi-turn continuous operation.
A 12-bit magnetic sensor.
55 plus or minus 1g.
38400bps to 1Mbps.
| Brand | Readytosky |
|---|---|
| Dimensions | 45.2 x 24.7 x 35 mm |
| Gear Material | Metal |
| Operating Voltage | 4-14V |
| Protocol | TTL serial (38400bps - 1Mbps) |
| Stall Torque | 30kg-cm |
| Weight | 55.000000 g |
| Selling unit | PCS |
