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	- Project: Audio Recording
	- Source Code NOT compiled for: ESP32 DevKit V1
	- Source Code created on: 2024-09-12 04:53:54

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
	/* Digitally input stereo audio from i2sadc and */
	/* display it on the serial monitor. */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <tinyI2S.h>	// https://github.com/chrmlinux/tinyI2S
#include <EasyButton.h>	// https://github.com/evert-arias/EasyButton

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t button_PushButton_PIN_D4 = 4;

/***** DEFINITION OF LIBRARIES CLASS INSTANCES *****/
tinyI2S tI2S; // Create an instance of tinyI2S
EasyButton button(button_PushButton_PIN_D4); // Create an instance of EasyButton with the defined pin

void setup(void)
{
    Serial.begin(115200); // Initialize serial communication at 115200 baud rate
    // Initialize the button
    button.begin(); // Set up the button
    pinMode(button_PushButton_PIN_D4, INPUT_PULLUP); // Set the button pin as input with pull-up resistor

    // Initialize the tinyI2S library
    tI2S.begin(RECORD_BUFSIZE_80K, SAMPLING_RATE_16K); // Start the I2S with specified buffer size and sampling rate
    tI2S.setMode(MODE_MIC); // Set the mode to microphone
}

void loop(void)
{
    // Update the button state
    button.read(); // Update the button state for debouncing

    // Check if the button is pressed
    if (button.isPressed()) { // Use isPressed() method to check if the button is currently pressed
        // Button is pressed, perform actions here
        tI2S.record(); // Start recording
        Serial.println("Recording started..."); // Notify that recording has started
    }

    // Update the tinyI2S state
    tI2S.update(); // Update the tinyI2S state

    // Check if the recording buffer is full
    if (tI2S.isBufFull()) {
        Serial.println("Buffer full, processing audio..."); // Notify that the buffer is full

        // Process the audio data (this is just an example, actual processing will depend on your requirements)
        int16_t audioData[RECORD_BUFSIZE_80K]; // Create an array to hold the audio data
        tI2S.read(audioData, RECORD_BUFSIZE_80K); // Read the audio data from the buffer

        // Display audio data on the serial monitor
        for (int i = 0; i < RECORD_BUFSIZE_80K; i++) {
            Serial.println(audioData[i]); // Print each audio sample to the serial monitor
        }

        tI2S.reset(); // Reset the I2S to prepare for the next recording
    }
}

/* END CODE */