Usually included with the module, but some circuits use an external earpiece or computer microphone.
To build a basic voice-controlled circuit, you will need the following hardware: An Arduino Uno or Arduino Nano is typically used as the central brain. Voice Recognition Module: Common options include the Elechouse Voice Recognition Module V3 or the DFRobot Gravity Sensor Go to product viewer dialog for this item. Voice Recognition System Circuit Diagram
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. Usually included with the module, but some circuits
The circuit relies on a connection between the voice module and the microcontroller. Voice Module Pin Arduino Pin VCC Power supply (typical 3.3V-5V) GND Common ground RX Pin 3 (Digital) Receives data from Arduino TX Pin 2 (Digital) Transmits voice ID data to Arduino Building a voice recognition system circuit is usually
Note: Pins 2 and 3 are often used with the SoftwareSerial library to keep the main hardware serial free for debugging. 3. How the System Works