6-24V Voice Recognition Switch Module for Record Control

6-24V Voice Recognition Switch Module Smart home developers and electronics hobbyists utilize this intelligent offline voice control board to integrate localized, hands-free vocal switching into electrical appliances. Consequently, it features a built-in neural network processor that records and recognizes custom speech patterns entirely locally without requiring internet connectivity or a cloud server. Therefore, this versatile module serves as an excellent plug-and-play solution for building secure, zero-latency voice-activated control systems.

Key Features:

• Universal Language Support: Allows users to directly record custom command phrases in any spoken language or dialect using basic onboard button operations.
• Wide Voltage Compatibility: Supports a broad 6V to 24V DC operating input range, making it highly compatible with automotive systems, industrial logic, and standard battery banks.
• Onboard Button Configuration: Employs a single micro-switch for seamless training (single-click to record the “ON” command, double-click to record the “OFF” command, and a 6-second long press to wipe memory).
• High-Accuracy Neural Engine: Employs an advanced ASR202S offline speech chip providing a recognition rate of over 95% in typical residential settings.
• Visual Status Feedback: Integrates a multi-pattern onboard LED indicator that flashes distinct sequences to confirm recording success, command deletion, and button inputs.

Technical Specifications:

• Operating Voltage: 6 V to 24 V DC.
• Core SoC Architecture: ASR202S Offline Speech Recognition Processor.
• Language Profile: Fully custom recording (Supports English, Hindi, regional dialects, and unique vocal sounds).
• Recognition Distance: 5 to 10 meters in quiet indoor environments.
• Response Speed: Less than 0.2 seconds for rapid physical execution.

Mechanical Specifications:

• PCB Layout: Compact surface-mount board design with dedicated micro-pitch connector pads for the microphone component.
• PCB Mask Color: Distinctive high-contrast mask with clean white component designations.
• Microphone Integration: Pairs with an external high-sensitivity electret capsule connected via standard flexible twisted-pair lines.

Dimensions:

• PCB Length: ≈ 37.00 mm.
• PCB Width: ≈ 23.00 mm.
• Total Module Weight: ≈ 6.00 g (Breakout board and microphone capsule combined).

Pinout and Wiring:

• Power Input Node (V+): Connects to the positive terminal of a 6V–24V DC power source.
• Ground Reference Node (GND): Common ground connection for supply and control return loops.
• Microphone Terminals (MIC+ / MIC-): Solder pad pair for interfacing with the included external acoustic capture capsule.
• Control Output Line: Outputs power matching the input voltage state upon valid voice command recognition to drive external loads or relays.

Datasheet Reference: Download Datasheet

• ASR202S 6-24V Wide-Voltage Recordable Voice Switch Manual and Training Guide

Commonly Used in:

• Voice-Activated Lighting: Upgrading existing LED strip installations, night lamps, or overhead light fixtures to toggle via local vocal cues.
• Assistive Technology: Building safe environment-automation arrays for individuals with limited mobility or manual dexterity.
• Hands-Free Appliances: Adding auxiliary voice triggers to workspace equipment, kitchen extractors, or tools where an operator’s hands are fully occupied.

Applications:

• Offline Home Automation: Enhancing privacy and response speed by removing dependencies on external network layers. However, loud ambient noise or placing the microphone near high-vibration cooling fans can degrade recognition thresholds; therefore, system technicians must optimize physical placement and record commands in completely quiet settings.

Equivalent Models:

• SU-03T Fixed-Command Voice Module: An alternative offline chip requiring firmware compilation and pre-defined static code files.
• HLK-V20 AI Voice Controller: A 5V UART-enabled speech module designed primarily for microcontroller serial interfacing rather than direct-load switching.

Package Includes:

• 1 × 6-24V Voice Recognition Switch Main Board
• 1 × High-Sensitivity External Electret Microphone with Wire Assembly