# 25kg.cm Wide Range Voltage Serial Bus Servo

**Type:** Product page · **SKU:** WS-24703 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/25kgcm-wide-range-voltage-serial-bus-servo.html ([markdown](https://core-electronics.com.au/25kgcm-wide-range-voltage-serial-bus-servo.html.md))

25kg.cm Wide Range Voltage Serial Bus Servo, High Precision And Large Torque, With Programmable 360 Degrees Magnetic Encoder, Two-Way Feedback,...

## Pricing

- **Price:** $40.45 (inc GST) — $36.77 AUD, exc GST
- **Quantity discounts:** 10+ $35.30 (exc GST) · 25+ $34.20 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 31 and Sep 07.

## Description

## Details

 25kg.cm Wide Range Voltage Serial Bus Servo, High Precision And Large Torque, With Programmable 360 Degrees Magnetic Encoder, Two-Way Feedback, Servo/Motor Mode Switchable 25kg.cm Wide Range Voltage 
serial bus servo  Supports 6~14V Wide Range Voltage input, with 360° Magnetic Encoder

 ![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-1_99077becb05.jpg) Specifications | Product type | ST3020 serial bus servo |
|---|---|
| Torque | 25kg.cm@12V |
| Rotation angle | 360° (0~4095) |
| Position sensor resolution | 0.088° (360°/4096) |
| Mechanism limit angle | No Limit |
| Working voltage | 6 ~ 14 V (typ. 12V) |
| Gear | high precision metal gear |
| No-load speed | 0.167sec/60° (60RPM)@12V |
| Encoder type | 12Bits magnetic encoder |
| ID range | 1 ~ 253 |
| Baudrate | 38400bps ~ 1Mbps (1Mbps by default) |
| Feedback | Position, Load, Speed, Input Voltage, Current, Temperature |
| No-load current | 200mA@12V |
| Locked-rotor current | 2.7A@12V |
| Kt | 9.26kg.cm/A |

 
 Application Examples - Servos will provide various feedback like load, position, speed, torque lock, and working 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 models as shown in the picture below)
 
 ![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-3-1_35286731e27.jpg) **Download models:**  [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-STEP_1082bec881.png)](https://core-electronics.com.au/attachments/localcontent/CLAWER-6_based_on_ST3020_Servo_STEP_106035bb312.zip) [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-F3Z_1031105fee.png)](https://core-electronics.com.au/attachments/localcontent/CLAWER-6_based_on_ST3020_Servo_F3Z_30304ae8135.zip)

 ![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-3-2_2961452f5b1.jpg) **Download models:**  [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-STEP_1082bec881.png)](https://core-electronics.com.au/attachments/localcontent/CLAWER-4_based_on_ST3020_Servo_STEP_10353abcbb9.zip) [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-F3Z_1031105fee.png)](https://core-electronics.com.au/attachments/localcontent/CLAWER-4_based_on_ST3020_Servo_F3Z_290981d1c38.zip)

 ![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-3-3_18363a17789.jpg) **Download models:**  [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-STEP_1082bec881.png)](https://core-electronics.com.au/attachments/localcontent/ARM_based_on_ST3020_STEP_2087978aad1.zip) [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-F3Z_1031105fee.png)](https://core-electronics.com.au/attachments/localcontent/ARM_based_on_ST3020_F3Z_773187a8921.zip)

 ![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-3-4_2007993fe86.jpg) **Download models:**  [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-STEP_1082bec881.png)](https://core-electronics.com.au/attachments/localcontent/PT_based_on_ST3020_STEP_17246234212.zip) [![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-F3Z_1031105fee.png)](https://core-electronics.com.au/attachments/localcontent/PT_based_on_ST3020_F3Z_55049b51432.zip)

\* images here are for reference ONLY

 
 UART Serial Bus Control Allows controlling up to 253 serial bus servos at the same time

 ![](https://core-electronics.com.au/attachments/localcontent/ST3020-Servo-details-5_11220d01528.jpg) Note: though one channel UART can control up to 253 serial bus servos, due to the high power of the servos, it is necessary to consider whether the power supply solution is enough when using too many servos. For reference only, the [servo driver board](https://core-electronics.com.au/servo-driver-with-esp32.htm) is NOT included

 Easy to use, Large Torque

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-24703-1.jpg)