FridgeSensor/main/sound.c

#include "sound.h"
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
//#include "driver/gpio.h"
#include "esp_log.h"
#include "sdkconfig.h"
#include "driver/dac.h"
#include "math.h"

#define DAC_CHANNEL       1
#define DAC_PIN           GPIO_NUM_25   // GPIO pin for DAC output GPIO25=Channel 1
#define TONE_FREQ         262               // Frequency for C4 (Middle C)
#define PWM_CHANNEL   LEDC_CHANNEL_0
#define PWM_TIMER     LEDC_TIMER_0
#define PWM_RES       LEDC_TIMER_8_BIT  // 8-bit resolution (0-255)

typedef struct {
    int frequency;      // Frequency in Hz
    int duration;       // Duration in ms
    int quietDuration;  // The quiet duration after each note
} Note;

// Super Mario Bros. short intro melody
/*Note melody[] = {
    {660, 100}, {0, 150}, {660, 100}, {0, 300}, {660, 100}, {0, 300}, {510, 100}, {660, 100}, {770, 100}, {0, 550}, 
    {380, 100}, {0, 500}, {510, 100}, {0, 300}, {380, 100}, {0, 300}, {320, 100}, {0, 700}  // End of melody
};*/
/*Note melody[] = {
    {440, 500}, {440, 500}, {440, 500}, {349, 350}, {523, 150}, {440, 500}, {349, 350}, {523, 150}, {440, 1000},
    {659, 500}, {659, 500}, {659, 500}, {698, 350}, {523, 150}, {415, 500}, {349, 350}, {523, 150}, {440, 1000}, 
};*/
/*Note melody[] = {
    {1318, 150}, {2637, 150}, {2093, 150}, {2349, 150}, {3136, 300}
};*/

/*Note melody[] = {
    {320, 200, 200},{320, 200, 200},{320, 200, 200},{320, 200, 200},{320, 200, 200},{320, 200, 200},{320, 200, 200},
    
    {660, 100, 150}, {660, 100, 300}, {660, 100, 300}, {510, 100, 100}, {660, 100, 300}, {770, 100, 550}, {380, 100, 575},
    {510, 100, 450}, {380, 100, 400}, {320, 100, 500}, {440, 100, 300}, {480, 80, 330}, {450, 100, 150}, {430, 100, 300},
    {380, 100, 200}, {660, 80, 200}, {760, 50, 150}, {860, 100, 300}, {700, 80, 150}, {760, 50, 350}, {660, 80, 300},
    {520, 80, 150}, {580, 80, 150}, {480, 80, 500},

    {510, 100, 450}, {380, 100, 400}, {320, 100, 500}, {440, 100, 300}, {480, 80, 330}, {450, 100, 150}, {430, 100, 300},
    {380, 100, 200}, {660, 80, 200}, {760, 50, 150}, {860, 100, 300}, {700, 80, 150}, {760, 50, 350}, {660, 80, 300},
    {520, 80, 150}, {580, 80, 150}, {480, 80, 500},

    {500, 100, 300}, {760, 100, 100}, {720, 100, 150}, {680, 100, 150}, {620, 150, 300}, {650, 150, 300}, {380, 100, 150},
    {430, 100, 150}, {500, 100, 300}, {430, 100, 150}, {500, 100, 100}, {570, 100, 220}, {500, 100, 300}, {760, 100, 100},
    {720, 100, 150}, {680, 100, 150}, {620, 150, 300}, {650, 200, 300},

    {1020, 80, 300}, {1020, 80, 150}, {1020, 80, 300}, {380, 100, 300}, {500, 100, 300}, {760, 100, 100}, {720, 100, 150},
    {680, 100, 150}, {620, 150, 300}, {650, 150, 300}, {380, 100, 150}, {430, 100, 150}, {500, 100, 300}, {430, 100, 150},
    {500, 100, 100}, {570, 100, 420}, {585, 100, 450}, {550, 100, 420}, {500, 100, 360}, {380, 100, 300}, {500, 100, 300},

    {500, 100, 150}, {500, 100, 300}, {500, 100, 300}, {760, 100, 100}, {720, 100, 150}, {680, 100, 150}, {620, 150, 300},
    {650, 150, 300}, {380, 100, 150}, {430, 100, 150}, {500, 100, 300}, {430, 100, 150}, {500, 100, 100}, {570, 100, 220},
    {500, 100, 300}, {760, 100, 100}, {720, 100, 150}, {680, 100, 150}, {620, 150, 300}, {650, 200, 300},

    {1020, 80, 300}, {1020, 80, 150}, {1020, 80, 300}, {380, 100, 300}, {500, 100, 300}, {760, 100, 100}, {720, 100, 150},
    {680, 100, 150}, {620, 150, 300}, {650, 150, 300}, {380, 100, 150}, {430, 100, 150}, {500, 100, 300}, {430, 100, 150},
    {500, 100, 100}, {570, 100, 420}, {585, 100, 450}, {550, 100, 420}, {500, 100, 360}, {380, 100, 300}, {500, 100, 300},

    {500, 60, 150}, {500, 80, 300}, {500, 60, 350}, {500, 80, 150}, {580, 80, 350}, {660, 80, 150}, {500, 80, 300},
    {430, 80, 150}, {380, 80, 600}, {500, 60, 150}, {500, 80, 300}, {500, 60, 350}, {500, 80, 150}, {580, 80, 150},
    {660, 80, 550}, {870, 80, 325}, {760, 80, 600},

    {500, 60, 150}, {500, 80, 300}, {500, 60, 350}, {500, 80, 150}, {580, 80, 350}, {660, 80, 150}, {500, 80, 300},
    {430, 80, 150}, {380, 80, 600}, {660, 100, 150}, {660, 100, 300}, {660, 100, 300}, {510, 100, 100}, {660, 100, 300},
    {770, 100, 550}, {380, 100, 575}
};*/

const Note melody[] = {
    {196.00, 152, 0},
    {261.63, 152, 39},
    {329.63, 151, 160},
    {392.00, 152, 201},
    {523.25, 152, 318},
    {659.26, 151, 361},
    {783.99, 456, 480},
    {659.26, 456, 536},
    {207.65, 152, 960},
    {261.63, 152, 999},
    {311.13, 151, 1120},
    {415.30, 152, 1161},
    {523.25, 152, 1278},
    {622.25, 151, 1321},
    {830.61, 456, 1440},
    {622.25, 456, 1496},
    {233.08, 152, 1920},
    {293.66, 152, 1959},
    {349.23, 151, 2080},
    {466.16, 152, 2121},
    {587.33, 152, 2238},
    {698.46, 151, 2281},
    {932.33, 456, 2400},
    {932.33, 152, 2456},
    {932.33, 152, 2863},
    {932.33, 151, 2616},
    {659.26, 456, 3025},
};

int melody_size = sizeof(melody) / sizeof(melody[0]);

static void play_tone(int frequency, float duration, int quietDuration) {

    int semitones = 2;

    int t_freq = frequency * pow(2.0, semitones / 12.0);

    int8_t cw_offset = 0;
    dac_cw_config_t cosineConf = {DAC_CHANNEL_1, DAC_CW_SCALE_8, DAC_CW_PHASE_0, t_freq, cw_offset};

    if (frequency == 0) {
        dac_output_disable(DAC_CHANNEL_1);
    } else {
        dac_cw_generator_config(&cosineConf);
        dac_output_enable(DAC_CHANNEL_1);
    }
    vTaskDelay(pdMS_TO_TICKS(duration));
    //dac_output_disable(DAC_CHANNEL_1);
    //vTaskDelay(pdMS_TO_TICKS(quietDuration));
}

void play_melody() {
    for (int i = 0; i < melody_size; i++) {
        play_tone(melody[i].frequency, melody[i].duration, melody[i].quietDuration);
    }
    dac_output_disable(DAC_CHANNEL_1);
}

static void setupSound() {

    int8_t cw_offset = 0;
    dac_cw_config_t cosineConf = {DAC_CHANNEL_1, DAC_CW_SCALE_8, DAC_CW_PHASE_0, 440, cw_offset};


    dac_cw_generator_config(&cosineConf);
    dac_cw_generator_enable();
    //dac_output_enable(DAC_CHANNEL_1);

    //vTaskDelay(pdMS_TO_TICKS(1000)); // Delay 1 second

    dac_output_disable(DAC_CHANNEL_1);
    

    

    

    ESP_LOGI("SOUND", "Sound setup");
}

static void sound_task(void *pvParameters) {

    setupSound();

    while (1) {




        vTaskDelay(pdMS_TO_TICKS(5000));
        play_melody();
    }

    ESP_LOGI("SOUND", "Sound task starts....");
}

void initSound() {

    xTaskCreate(sound_task, "sound_task", 2048, NULL, 10, NULL);
    ESP_LOGI("SOUND", "Sound initialized");
}