esp-pwm/main/freq_slider.c

#include <stdbool.h>

#include "driver/usb_serial_jtag.h"
#include "portmacro.h"
#include "esp_log.h"

#include "buzzer.h"
#include "arraylen.h"

extern const uint32_t init_buzzer_freq;

static const char* TAG = "FREQ_SLIDER_C";

void freq_slider_task(void* param) {
    buzzer_init(init_buzzer_freq);

    usb_serial_jtag_driver_config_t jtag_config = {.rx_buffer_size = 1024,
                                                   .tx_buffer_size = 1024};
    ESP_ERROR_CHECK(usb_serial_jtag_driver_install(&jtag_config));

    int modify_amount = 10;

    char buf[4] = {0};
    while (true) {
        int read_count = usb_serial_jtag_read_bytes(buf, ARRAY_LEN(buf) - 1, portMAX_DELAY);
        buf[read_count + 1] = '\0';
        switch (buf[0]) {
            case 'q':
                ESP_LOGI(TAG, "Increasing frequency. New frequency: %d", modify_frequency(modify_amount));
                break;
            case 'a':
                ESP_LOGI(TAG, "Decreasing frequency. New frequency: %d", modify_frequency(-modify_amount));
                modify_frequency(-modify_amount);
                break;
            case '1':
                reset_frequency();
                break;
        }
    }
}