# PlanetX Speech Recognition Sensor (English)

**Type:** Product page · **SKU:** EF05046 · **Brand:** [Elecfreaks](https://core-electronics.com.au/brands/elecfreaks-australia)
**Page:** https://core-electronics.com.au/planet-x-speech-recognition-sensor.html ([markdown](https://core-electronics.com.au/planet-x-speech-recognition-sensor.html.md))

Integrate a self-learning speech recognition module over I2C for hands-free voice control in microcontroller projects, from robotics to smart lighting.

## Pricing

- **Price:** $42.30 (inc GST) — $38.45 AUD, exc GST
- **Quantity discounts:** 10+ $36.92 (exc GST) · 25+ $35.76 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 4 today, and up to 300 more in 9–13 days.

## Description

The ELECFREAKS PlanetX Speech Recognition Sensor offers an intuitive way to add voice control capabilities to your projects. With self-learning word support, this sensor enables hands-free operation, perfect for smart lighting, voice-controlled cars, and interactive applications.

Ideal for integrating with microcontrollers and intelligent devices, this sensor enhances automation and user interaction, making it a versatile choice for makers, educators, and developers seeking to explore voice recognition technology.

### Technical Specifications

 | Parameter | Details |
|---|---|
| Connection | RJ11 |
| Connection Type | IIC (I²C Interface) |
| Working Voltage | 3.3V |
| Core IC | SNR9815 |

### How to Use/Installation

- Connect the sensor to your main controller board via the RJ11 interface using the IIC communication protocol.
- Power the sensor using a stable 3.3V supply to avoid damage.
- Program voice commands via the supported self-learning word feature to customise responses.
- Integrate with compatible devices such as LEDs, intelligent cars, or other robotic hardware to enable voice-activated control.
- Debug and test commands in your development environment to ensure reliable recognition and response.
 
### Compatibility

- ELECFREAKS PlanetX series microcontroller boards
- Micro:bit (via appropriate interface modules)
- Other microcontrollers supporting IIC communication at 3.3V logic level
- ELECFREAKS intelligent car kits for voice-controlled movement
- Rainbow LED modules for visual voice feedback
 
### What’s Included

- ELECFREAKS PlanetX Speech Recognition Sensor unit
- Connection cable with RJ11 plug (usually provided with kits)
 
### Additional Resources

- [ELECFREAKS Wiki - PlanetX Speech Recognition Sensor](https://wiki.elecfreaks.com/en/microbit/sensor/planet-x-sensors/Plant_X_EF05037)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/E/F/EF05046-1-3.jpg)