{"title":"20kg.cm Bus Servo Motor, 106PRM High Speed, Large Torque, With 360 Degrees High Precision Magnetic Encoder","handle":"20kg-cm-bus-servo-motor-106prm-high-speed-large-torque-with-360-degrees-high-precision-magnetic-encoder","url":"/products/20kg-cm-bus-servo-motor-106prm-high-speed-large-torque-with-360-degrees-high-precision-magnetic-encoder","description":"A high-performance 20kg·cm bus servo motor (model ST3215-HS) with 360-degree high-precision magnetic encoder and UART serial bus control. It supports both servo mode (precise angle control) and motor mode (continuous rotation), making it versatile for robotics applications from robotic arms to wheeled platforms.\n\nThe UART bus interface allows daisy-chaining up to 253 servo motors on a single channel, with real-time two-way feedback for position, load, speed, and input voltage. The 12-bit magnetic encoder provides 4× the resolution of traditional potentiometer-based servos with no mechanical wear.\n\nKey Features\n\n\n20kg·cm Torque at 12V – High torque for demanding robotics applications\n\n106 RPM High Speed – Fast response for dynamic movements\n\n360° Magnetic Encoder – 12-bit precision with no contact wear\n\nUART Serial Bus Control – Daisy-chain up to 253 servos\n\nDual Mode – Servo mode (angle control) and motor mode (continuous rotation)\n\nTwo-Way Feedback – Real-time position, load, speed, and voltage data\n\nAcceleration Control – Settable speed and acceleration for smooth motion\n\nOne-Button Middle Position Calibration – Set any position as centre point\n\n\nSpecifications\n\n\nModel: ST3215-HS\n\nTorque: 20kg·cm (at 12V)\n\nSpeed: 106 RPM\n\nEncoder: 12-bit magnetic, 360°\n\nControl Interface: UART serial bus\n\nModes: Servo (angle) / Motor (continuous)\n\nGears: High-precision copper and steel\n\nCase: Nylon and fibreglass composite\n\nServo Wheels: T6061 aluminium alloy\n\nDesign: Dual-shaft, low-profile, compact\n\n\nIdeal For\n\nQuadruped robots and hexapod walkers\nRobotic arms and multi-joint assemblies\nWheeled robots requiring closed-loop speed control\n3D printers and CNC projects\n\n\nPackage Contents\n\n1× ST3215-HS Bus Servo Motor\n\n\n\nNote: When daisy-chaining multiple servos, ensure your power supply can handle the combined current draw. Servo driver board, flanges, and wheels are sold separately.\n\n\nResources\n\nWaveshare Wiki – ST3215-HS Servo Motor\n","vendor":"Waveshare","product_type":"","in_stock":true,"options":[],"variants":[{"id":1440,"title":"Default Title","sku":"WS-25127","price":35.03,"on_sale":false,"in_stock":true,"available_quantity":11,"option1":"Default Title"}]}