STS3215 19.5kg Smart Servo

TTL serial bus smart servo with 12-bit magnetic encoder (4096-step resolution, 0.088° precision). Dual-shaft design supports daisy-chaining up to 253 servos on a single bus. Commonly used in SO-ARM100/101 builds (6 per arm).

Specifications

• Manufacturer: FEETECH
• Model: STS3215
• SKU: ST-3215-C001
• Stall Torque: 16.5kg.cm @ 6.0V | 19.5kg.cm @ 7.4V
• Speed: 0.238sec/60° @ 6.0V | 0.192sec/60° @ 7.4V
• Dimensions: 45.22mm × 24.7mm × 35mm
• Weight: ~55g
• Voltage Range: 6.0V - 7.4V
• Communication: TTL Serial Bus (Digital Packet)
• Encoder: 12-bit Magnetic (4096 resolution)
• Shaft: Dual-shaft
• ID Range: 1-253
• Baud Rate: 115200 (default)
• Feedback: Position, Speed, Load, Voltage, Temperature
• Protection: Overload, Overcurrent, Overvoltage, Overheat

Applications

• SO-ARM100/101 robotic arms (6 per arm)
• LeRobot/Hugging Face projects
• Hexapod/quadruped robots
• Educational robotics