> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=WS-24440:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)