# 30KG Serial Bus Servo, High precision and torque, with Programmable 360 Degrees Magnetic Encoder

**Type:** Product page · **SKU:** WS-22414 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/30kg-serial-bus-servo-high-precision-torque-360-degree-magnetic-encoder.html ([markdown](https://core-electronics.com.au/30kg-serial-bus-servo-high-precision-torque-360-degree-magnetic-encoder.html.md))

30KG Serial Bus Servo, High precision and torque, with Programmable 360 Degrees Magnetic Encoder, Two-way Feedback, Servo/Motor Mode Switchable...

## Pricing

- **Price:** $38.80 (inc GST) — $35.27 AUD, exc GST
- **Quantity discounts:** 10+ $33.86 (exc GST) · 25+ $32.80 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 9 today, and up to 300 more in 12–19 days.

## Description

Introducing the 30KG Serial Bus Servo, a high-precision, high-torque servo with a programmable 360° magnetic encoder and versatile features suitable for advanced robotics projects.

### Specifications

 | Product Type | ST3215 Serial Bus Servo |
|---|---|
| Torque | 30kg.cm @ 12V |
| Rotation Angle | 360° (0~4095) |
| Position Sensor Resolution | 360° / 4096 |
| Mechanism Limited Angle | No Limit |
| Operating Voltage | 6 ~ 12.6 V |
| Gear | High-precision metal gear |
| No-load Speed | 0.222 sec / 60° (45 RPM) @ 12V |
| Encoder Type | 360° Magnetic Encoder |
| ID Range | 0 ~ 253 |
| Baudrate | 38400 bps ~ 1 Mbps (1 Mbps by default) |
| Feedback | Position, Load, Speed, Input Voltage |
| No-load Current | 180 mA |
| Locked-rotor Current | 2.7 A |
| Torque Constant (kt) | 11 kg.cm/A |

### Application Examples

- Provides feedback like position, speed, and torque for advanced closed-loop control.
- Ideal for building quadruped robots, hexapod walkers, robotic arms, and other projects requiring multiple servos.
 
 ![Quadruped Robot Example](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-3_596177eca81.jpg)\* Images are for reference only.

### UART Serial Bus Control

Control up to 253 serial bus servos simultaneously. Note: Ensure adequate power supply when using multiple servos. The servo driver board is NOT included.

 ![UART Serial Bus Control](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-5_9879462fb7e.jpg)### Large Torque

Up to 30kg.cm torque at 12V, perfect for robotic projects requiring strong and reliable servos.

 ![Large Torque Demonstration](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-7_897691b99e7.jpg)\* Images are for reference only.

### 360° Magnetic Encoder

Adopts a 12-bit high-precision magnetic encoding angle sensor. This design extends the servo's lifetime by eliminating friction and gaps compared to potentiometers.

 ![360° Magnetic Encoder Design](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-9_12913ba878a.jpg)### Acceleration Start-stop Function

The speed and acceleration values can be customized for smoother motion.

 ![Acceleration Start-stop Function](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-11-1_56691217a60.gif)**Motion Effect Diagram**

 ![Motion Effect Diagram](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-11-2_10973864d4a.gif)### Compact Structure Design

High-strength engineering plastic case with a dual-shaft, low-profile design for a more compact and aesthetically pleasing structure.

 ![Compact Structure Design](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-13_78793022d64.jpg)### One Button to Calibrate the Middle Position

Allows 360° installation at any position. A single button sets the current position as the middle, simplifying installation.

 ![Calibration Example](https://core-electronics.com.au/attachments/localcontent/ST3215-Servo-details-15-1_12063c34548.jpg)### Resources

- [Wiki](https://www.waveshare.com/wiki/ST3215_Servo)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-22414-1.jpg)