Key benefits detection accuracy for reliable voice control: 99% recognition helps perform actions as expected. Low power and versatile power supply: 4.5–5.5 V supply with typical current 40 mA, suitable for compact or batterypowered projects. Flexible interfaces for easy integration: Digital interface via UART and 5 V TTL level for GPIO; Analogue interface via 3.5 mm mono connector plus pin interface. Compact design for tight spaces: Small form factor ideal for small DIY projects such as robotics, home devices, and interactive toys. Two control modes for flexible use: Serial (full function) and universal input (partial function) to match different host controllers. Flexible output capability: General output pins on the board can generate different types of outputs while recognising the corresponding voice commands. Large command capacity and simple setup: Supports up to 80 voice commands; up to 80 voice commands can be activated simultaneously. The user needs to set the voice before it can be recognised. Specifications Supply voltage: 4.5–5.5 V Current consumption: 40 mA Digital interface: UART interface and 5 V TTL level for GPIO Analogue interface: 3.5 mm mono connector pin interface Detection accuracy: 99% Compact design Its small size allows easy integration into small DIY projects such as robotics, home devices, and interactive toys. Control modes Serial (full function): Full control via the serial interface. Universal input (partial function): Supports devices using a universal input approach. Features Supports up to 80 voice commands Up to 80 voice commands can be activated simultaneously The user needs to set the voice before it can be recognised Typical use scenarios Voicecontrolled robotics: Use serial or universal input to trigger motors, sensors, or actions in a compact robot. Smart home devices: Add voice control to lamps, fans, or other appliances via UART or GPIO signals. Interactive toys and educational kits: Implement voicedriven features and responses in learning toys or DIY projects.