{"title":"25kg.cm Wide Range Voltage Serial Bus Servo, High Precision And Large Torque, With Programmable 360 Degrees Magnetic Encoder","handle":"25kg-cm-wide-range-voltage-serial-bus-servo-high-precision-and-large-torque-with-programmable-360-degrees-magnetic-encoder","url":"/products/25kg-cm-wide-range-voltage-serial-bus-servo-high-precision-and-large-torque-with-programmable-360-degrees-magnetic-encoder","description":"The ST3020 is a high-torque 25kg·cm serial bus servo with a 360° magnetic encoder, supporting 6–14V wide-range voltage input. It features an aluminium alloy middle case, iron-core motor, and metal gearbox for reliable performance in demanding robotics applications.\n\nThe servo communicates via UART serial bus, allowing up to 253 servos to be controlled on a single channel. It supports multiple operating modes including angle servo mode (0–360°), speed closed-loop motor mode, and step mode. Two-way feedback provides real-time position, load, speed, voltage, current, and temperature data.\n\nKey Features\n\n\n25kg·cm Torque at 12V – High torque for demanding robotic joints and mechanisms\n\n360° Magnetic Encoder – 12-bit precision with no friction or wear, extending servo lifetime\n\nWide Voltage Input – 6–14V DC, compatible with 2S or 3S lithium batteries\n\nUART Serial Bus Control – Daisy-chain up to 253 servos on one channel\n\nMultiple Operating Modes – Angle servo, speed closed-loop motor, and step modes\n\nTwo-Way Feedback – Real-time position, load, speed, voltage, current, and temperature\n\nAcceleration Control – Settable speed and acceleration for smoother motion\n\nOne-Button Middle Position Calibration – 360° installation at any angle\n\nMulti-Loop Position Control – Up to 7.5 loops in both directions under default precision\n\nAluminium Alloy Case – Improved heat tolerance and rigidity\n\nMetal Gearbox – High-precision copper and steel gears for low noise and stability\n\n\nSpecifications\n\n\nTorque: 25kg·cm (at 12V)\n\nInput Voltage: 6–14V DC\n\nEncoder: 12-bit magnetic (360°)\n\nInterface: UART serial bus\n\nServo Wheels: T6061 aluminium alloy\n\n\nIdeal For\n\nQuadruped and hexapod walking robots\nRobotic arms and grippers\nPan-tilt mechanisms\nProjects requiring closed-loop servo control\n\n\nPackage Contents\n\n1× ST3020 Serial Bus Servo\n\n\nResources\n\nWaveshare Product Wiki\nHexapod Crawler 3D Model (STEP)\nQuadruped Crawler 3D Model (STEP)\nRobotic Arm 3D Model (STEP)\nPan-Tilt 3D Model (STEP)\n","vendor":"Waveshare","product_type":"","in_stock":true,"options":[],"variants":[{"id":1434,"title":"Default Title","sku":"WS-24703","price":37.1,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":8,"option1":"Default Title"}]}