C++ (Cpp) ledc_set_duty Examples

Example #1

File: pwm.c Project: Scalpel78/Ghost

//Set the PWM pulse width in microseconds.
//A servo typically works between 1000 and 2000us.
void pwm_set_microseconds(int usec)
{
  int duty_cycle = usec;

  ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, duty_cycle);
  ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0);
}

Example #2

/*******************************************************
 *                Function Definitions
 *******************************************************/
esp_err_t mesh_light_init(void)
{
    if (s_light_inited == true) {
        return ESP_OK;
    }
    s_light_inited = true;

    ledc_timer_config_t ledc_timer = {
        .bit_num = LEDC_TIMER_13_BIT,
        .freq_hz = 5000,
        .speed_mode = LEDC_HIGH_SPEED_MODE,
        .timer_num = LEDC_TIMER_0
    };
    ledc_timer_config(&ledc_timer);

    ledc_channel_config_t ledc_channel = {
        .channel = LEDC_CHANNEL_0,
        .duty = 100,
        .gpio_num = LEDC_IO_0,
        .intr_type = LEDC_INTR_FADE_END,
        .speed_mode = LEDC_HIGH_SPEED_MODE,
        .timer_sel = LEDC_TIMER_0
    };
    ledc_channel_config(&ledc_channel);
    ledc_channel.channel = LEDC_CHANNEL_1;
    ledc_channel.gpio_num = LEDC_IO_1;
    ledc_channel_config(&ledc_channel);
    ledc_channel.channel = LEDC_CHANNEL_2;
    ledc_channel.gpio_num = LEDC_IO_2;
    ledc_channel_config(&ledc_channel);
    ledc_channel.channel = LEDC_CHANNEL_3;
    ledc_channel.gpio_num = LEDC_IO_3;
    ledc_channel_config(&ledc_channel);
    ledc_fade_func_install(0);

    mesh_light_set(MESH_LIGHT_INIT);
    return ESP_OK;
}

esp_err_t mesh_light_set(int color)
{
    switch (color) {
    case MESH_LIGHT_RED:
        /* Red */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
        break;
    case MESH_LIGHT_GREEN:
        /* Green */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
        break;
    case MESH_LIGHT_BLUE:
        /* Blue */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
        break;
    case MESH_LIGHT_YELLOW:
        /* Yellow */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
        break;
    case MESH_LIGHT_PINK:
        /* Pink */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
        break;
    case MESH_LIGHT_INIT:
        /* can't say */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
        break;
    case MESH_LIGHT_WARNING:
        /* warning */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 3000);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 3000);
        break;
    default:
        /* off */
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1, 0);
        ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2, 0);
    }

    ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0);
    ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_1);
    ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_2);

    return ESP_OK;
}

void mesh_connected_indicator(int layer)
{
    switch (layer) {
    case 1:
        mesh_light_set(MESH_LIGHT_PINK);
        break;
    case 2:
        mesh_light_set(MESH_LIGHT_YELLOW);
        break;
    case 3:
        mesh_light_set(MESH_LIGHT_RED);
        break;
    case 4:
        mesh_light_set(MESH_LIGHT_BLUE);
        break;
    case 5:
        mesh_light_set(MESH_LIGHT_GREEN);
        break;
    case 6:
        mesh_light_set(MESH_LIGHT_WARNING);
        break;
    default:
        mesh_light_set(0);
    }
}

void mesh_disconnected_indicator(void)
{
    mesh_light_set(MESH_LIGHT_WARNING);
}

esp_err_t mesh_light_process(mesh_addr_t *from, uint8_t *buf, uint16_t len)
{
    mesh_light_ctl_t *in = (mesh_light_ctl_t *) buf;
    if (!from || !buf || len < sizeof(mesh_light_ctl_t)) {
        return ESP_FAIL;
    }
    if (in->token_id != MESH_TOKEN_ID || in->token_value != MESH_TOKEN_VALUE) {
        return ESP_FAIL;
    }
    if (in->cmd == MESH_CONTROL_CMD) {
        if (in->on) {
            mesh_connected_indicator(esp_mesh_get_layer());
        } else {
            mesh_light_set(0);
        }
    }
    return ESP_OK;
}