This is how this basic circuit works. Now that we have a complete understanding of how a Sound sensor works, we can connect all the required wires to Arduino as shown below. Connecting the Sound ...

Before we dive into the hardware connection and code for this Home ... The circuit was drawn using Fritzing software. The Sound sensor and the Relay module is powered by the 5V pin of the Arduino. The ...

Update the auth variable in the Arduino code with the obtained token. Connect the proximity sensor to pin D5 (IR). Connect the sound sensor to pin D6. Connect the relay control pin to pin D4 (relayPin ...