SPEECH/VOICE RECOGNITION MODULE V3

The Voice Recognition Module V3 is a compact, speaker-dependent voice recognition board. Supports up to 80 trainable voice commands total, with up to 7 active simultaneously. Any sound can be trained as a command. Two control interfaces: UART (full function) and GPIO pins (partial function). Must be trained before use.

Key Functions:

• TRAIN1 / TRAIN2: record First and Second command groups
• LOAD1 / LOAD2: activate trained groups
• PB2–PB5: 4-bit digital output pins per recognised command
• 3.5mm mono microphone connector + microphone pin interface

Specifications:

• Operating Voltage: 4.5–5.5V
• Operating Current: <40mA
• Interface: 5V TTL UART + GPIO
• Recognition Accuracy: 99% (ideal conditions)
• Max Commands: 80 (7 simultaneously active)
• PCB Size: 30 × 47.5mm

Applications:

• Voice-controlled Arduino and robotics projects
• Hands-free command interfaces
• Smart home voice trigger systems
• Accessibility and assistive technology projects