# 2.3kg Serial Bus Servo, Two-way Feedback

**Type:** Product page · **SKU:** WS-24440 · **Brand:** [Waveshare](https://core-electronics.com.au/brands/waveshare-in-australia)
**Page:** https://core-electronics.com.au/2-3kg-serial-bus-servo-two-way-feedback.html ([markdown](https://core-electronics.com.au/2-3kg-serial-bus-servo-two-way-feedback.html.md))

2.3kg Serial Bus Servo, Two-way Feedback, Servo/Motor Mode Switchable, Compact Size, 300° Rotation Angle...

## Pricing

- **Price:** $15.75 (inc GST) — $14.32 AUD, exc GST
- **Quantity discounts:** 10+ $13.75 (exc GST) · 25+ $13.32 (exc GST)

## Availability & dispatch

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

## Description

Easily control up to **253 serial bus servos** through a single UART channel—perfect for complex robotics or automation projects. Just a heads-up: while you can technically run that many servos, make sure your power supply can keep up! (Power-hungry servos can drain fast.) *Note: Servo driver board not included.*

Enjoy **smooth 300° rotation** for precise angular control in Servo mode, making it great for applications that demand flexibility and accuracy.

Built with a smart combo of **high-precision copper and steel gears**, this setup keeps operating noise low while delivering excellent mechanical stability and performance.

And with **real-time two-way feedback**, you get live updates on position, load, speed, and input voltage—so you're always in the loop.

### Specifications

- **Model:** SC09 Serial Bus Servo
 
- **Torque:**
    
    
    - Rated: 0.7 kg·cm @ 6V
    - Max: 2.3 kg·cm @ 6V
- **No-Load Speed:** 0.1 sec/60° (100 RPM) @ 6V
- **No-Load Current:** 150 mA @ 6V
- **Locked-Rotor Current:** 1.0 A
- **Operating Voltage:** 4.8V – 8.4V
- **Rotation Angle:** 300° (0~1024)
- **Center Position:** 150° (511)
- **Position Sensor Resolution:** 0.293° (300° / 1024 steps)
- **Mechanism Limited Angle:** No limit
 
- **Gear:** High precision metal gears
- **Motor Type:** Iron core motor
- **Bearing Type:** Sliding bearing
- **Output Shaft:** 20T / Outer Diameter 3.95 mm
- **Encoder Type:** Carbon film potentiometer
- **Dimensions:** 23.2 × 12.0 × 25.5 mm
- **Servo Cable Length:** 15 cm
 
- **Control Signal:** Digital
- **Protocol:** Half-duplex asynchronous serial communication
- **Baud Rate:** 38,400 bps ~ 1 Mbps
- **ID Range:** 0 ~ 253
 
- **Operating Temperature:** -15°C ~ 70°C
- **Storage Temperature:** -30°C ~ 80°C
 
- Real-time feedback on:
    
    
    - Position
    - Load
    - Speed
    - Input Voltage
 
### Dimensions

![](https://core-electronics.com.au/attachments/localcontent/SC09-Servo-details-size_10027d54379.jpg)

### Resources

- [Wiki](https://www.waveshare.com/wiki/SC09_Servo)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/S/WS-24440-1.jpg)