Specification AgeRangeDescription : Kid Brand : waveshare BulletPoint1 : 【UART Serial Bus Control】Allows controlling up to 253 serial bus servos at the same time. 【Large Torque】Up To 30kg.cm torque on 12V voltage, suitable for building quadruped robots, hexapod walkers, robotic arms and other robotic projects requiring multiple servos. BulletPoint2 : 【360° Magnetic Encoder,High Precision, Longer Lifetime】 Adopts 12-bit high-precision magnetic encoding angle sensor. Compared with the potentiometer, the angle is enlarged to 360°, and the resolution is increased by 4 times. Since there is a gap and no friction between the magnetic encoder and the radial magnet, the lifetime of the servo is effectively extended. BulletPoint3 : 【Acceleration Start-stop Function】The speed and acceleration values can be set, and the motion effect is softer. 【One Button to Calibrate the Middle Position】360° installation at any position, one button to set the current position as middle position. Easy to install. 【Two-Way Feedback】The Servos will provide various feedback like position, load, speed, and input voltage in real time. BulletPoint4 : 【Compact Structure Design】 The case adopts higher intensity engineering plastics, dual shaft and low profile design, shortening the plane spacing of the double-shaft servo wheel, and the overall structure is more compact, which can make the appearance of the product more beautiful. BulletPoint5 : 【Application Examples】 Servos will provide various feedback like position, speed, torque lock, operating mode (servo mode, servo motor mode, etc.) for advanced projects requiring closed-loop automatic control. Ideal choice for building quadruped robots, hexapod walkers, robotic arms and other robotic projects requiring multiple servos. (This product provides the open source model of the quadruped robots as shown in the picture below.) Color : ST3215 CpsiaCautionaryStatement : choking_hazard_small_parts EducationalObjective : Color Recognition ExternallyAssignedProductIdentifier : 4944258875118 ExternallyAssignedProductIdentifier1 : 0605483106814 ExternallyAssignedProductIdentifier2 : 605483106814 IncludedComponents : HSD45501 ItemName : waveshare 30kg.cm@12V ST3215 Serial Bus Servo, High Precision and Torque, with Programmable 360 Degrees Magnetic Encoder, Two-Way Feedback, Servo/Motor Mode Switchable ItemPackageDimensions_Height : 0.19 inches ItemPackageDimensions_Length : 1.77 inches ItemPackageDimensions_Width : 0.94 inches ItemPackageQuantity : 8 ItemTypeKeyword : hobby-rc-vehicle-servos Manufacturer : Waveshare ManufacturerMinimumAge : 186 Material : Aluminum Material1 : Metal Material2 : Aluminum ModelName : (Rudder) Tail Servo ModelNumber : DS455M NumberOfItems : 8 OperationMode : Manual PartNumber : HPI87511 ProductDescription : Overview With the program to control, any angles can be set as the middle of the position, and it can also be switched to the continuously rotating motor or stepper motor mode. The built-in acceleration start-stop function makes the action softer. There are two interfaces on each servo, which can be used in series. In theory, 253 bus servos can be controlled at the same time, and each servo can obtain its own current angle, load, voltage, mode, and so on. It is suitable for robot projects, such as robotic arms, hexapod walkers, humanoid robots, wheeled robots and so on, which require real-time feedback for closed-loop control. Specification Input Voltage: 6-12.6V Mechanical Limited Angle: No Limit Rotating Angle: 360° (servo mode angle control) / motor mode continuous rotation Baudrate: 1Mbps Gear: high precision metal gear Idling Speed: 0.222sec/60°(45RPM)@12V Pos Sensor Resolution: 360°/4096 ID Range: 0-253 Feedback: Position, Load, Speed, Input Voltage Idling Current: 180 mA Stalling Current: 2.7 A Dimension: 45.22mm x 35mm x 24.72mm Feature Up to 253 servos can be connected in series at the same time (requires full power), also can obtain feedback information from each servo. 360°magnetic encoder, larger angle control range. High precision, the angle control accuracy reaches 360°/4096. Any angles can be set as the middle of the position, which is convenient for assembly. Acceleration start and stop function, the movement effect is softer. Compact structure design and the product appearance is more beautiful. 6-12.6V wide-voltage input, it can directly supply power with 2s or 3s lithium battery. High torque, up to 30kg.cm@12V. The working mode can be set by the program: servo angle control/motor model can be rotated continuously. Online Tutorial/Online Document: n9.cl/98naj Package Content ST3215 Servo x1