Most modern modules use a "wake word" (like "Hello Robot") to listen for commands.
Before the circuit can recognize your voice, it must be trained: Voice Recognition System Circuit Diagram
) or using a (like the Arduino Nano 33 BLE Sense Go to product viewer dialog for this item. The most common approach for DIY projects involves an Arduino Uno Go to product viewer dialog for this item. connected to a voice module via serial communication. 1. Essential Components Most modern modules use a "wake word" (like
Once a match is found, the module sends a specific Command ID (e.g., "1" for "Lights On") over the TX pin to the Arduino, which then triggers a relay or LED. 4. Setup and Training connected to a voice module via serial communication
You typically enter a learning mode via software or a button on the module. You repeat the command word multiple times (usually 3) until the module confirms success.
Usually included with the module, but some circuits use an external earpiece or computer microphone.
Building a voice recognition system circuit is usually done in one of two ways: using a (like the Elechouse V3 Go to product viewer dialog for this item.