65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
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#include "app_led.h"
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#if CONFIG_LED_ILLUMINATOR_ENABLED
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#include "esp_log.h"
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#include "driver/ledc.h"
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static const char *TAG = "app_led";
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#if CONFIG_LED_LEDC_LOW_SPEED_MODE
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#define CONFIG_LED_LEDC_SPEED_MODE LEDC_LOW_SPEED_MODE
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#else
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#define CONFIG_LED_LEDC_SPEED_MODE LEDC_HIGH_SPEED_MODE
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#endif
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void app_led_init()
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{
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gpio_set_direction(CONFIG_LED_LEDC_PIN, GPIO_MODE_OUTPUT);
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ledc_timer_config_t ledc_timer = {
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.duty_resolution = LEDC_TIMER_8_BIT, // resolution of PWM duty
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.freq_hz = 1000, // frequency of PWM signal
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.speed_mode = LEDC_LOW_SPEED_MODE, // timer mode
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.timer_num = CONFIG_LED_LEDC_TIMER // timer index
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};
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ledc_channel_config_t ledc_channel = {
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.channel = CONFIG_LED_LEDC_CHANNEL,
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.duty = 0,
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.gpio_num = CONFIG_LED_LEDC_PIN,
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.speed_mode = LEDC_LOW_SPEED_MODE,
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.hpoint = 0,
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.timer_sel = CONFIG_LED_LEDC_TIMER};
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#if CONFIG_LED_LEDC_HIGH_SPEED_MODE
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ledc_timer.speed_mode = ledc_channel.speed_mode = LEDC_HIGH_SPEED_MODE;
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#endif
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switch (ledc_timer_config(&ledc_timer))
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{
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case ESP_ERR_INVALID_ARG:
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ESP_LOGE(TAG, "ledc_timer_config() parameter error");
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break;
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case ESP_FAIL:
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ESP_LOGE(TAG, "ledc_timer_config() Can not find a proper pre-divider number base on the given frequency and the current duty_resolution");
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break;
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case ESP_OK:
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if (ledc_channel_config(&ledc_channel) == ESP_ERR_INVALID_ARG)
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{
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ESP_LOGE(TAG, "ledc_channel_config() parameter error");
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}
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break;
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default:
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break;
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}
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ESP_LOGE(TAG, "LED has been initialized.");
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}
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void app_led_duty(int duty)
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{ // Turn LED On or Off
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if (duty > CONFIG_LED_MAX_INTENSITY)
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duty = CONFIG_LED_MAX_INTENSITY;
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ledc_set_duty(CONFIG_LED_LEDC_SPEED_MODE, CONFIG_LED_LEDC_CHANNEL, duty);
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ledc_update_duty(CONFIG_LED_LEDC_SPEED_MODE, CONFIG_LED_LEDC_CHANNEL);
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ESP_LOGI(TAG, "Set LED intensity to %d", duty);
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}
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#endif
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