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105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/* Blink Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <stdio.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "driver/gpio.h"
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#include "esp_log.h"
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#include "led_strip.h"
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#include "sdkconfig.h"
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static const char *TAG = "example";
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/* Use project configuration menu (idf.py menuconfig) to choose the GPIO to blink,
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or you can edit the following line and set a number here.
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*/
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#define BLINK_GPIO CONFIG_BLINK_GPIO
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static uint8_t s_led_state = 0;
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#ifdef CONFIG_BLINK_LED_STRIP
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static led_strip_handle_t led_strip;
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static void blink_led(void)
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{
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/* If the addressable LED is enabled */
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if (s_led_state) {
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/* Set the LED pixel using RGB from 0 (0%) to 255 (100%) for each color */
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led_strip_set_pixel(led_strip, 0, 16, 16, 16);
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/* Refresh the strip to send data */
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led_strip_refresh(led_strip);
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} else {
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/* Set all LED off to clear all pixels */
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led_strip_clear(led_strip);
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}
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}
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static void configure_led(void)
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{
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ESP_LOGI(TAG, "Example configured to blink addressable LED!");
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/* LED strip initialization with the GPIO and pixels number*/
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led_strip_config_t strip_config = {
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.strip_gpio_num = BLINK_GPIO,
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.max_leds = 1, // at least one LED on board
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};
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#if CONFIG_BLINK_LED_STRIP_BACKEND_RMT
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led_strip_rmt_config_t rmt_config = {
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.resolution_hz = 10 * 1000 * 1000, // 10MHz
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.flags.with_dma = false,
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};
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ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip));
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#elif CONFIG_BLINK_LED_STRIP_BACKEND_SPI
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led_strip_spi_config_t spi_config = {
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.spi_bus = SPI2_HOST,
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.flags.with_dma = true,
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};
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ESP_ERROR_CHECK(led_strip_new_spi_device(&strip_config, &spi_config, &led_strip));
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#else
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#error "unsupported LED strip backend"
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#endif
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/* Set all LED off to clear all pixels */
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led_strip_clear(led_strip);
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}
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#elif CONFIG_BLINK_LED_GPIO
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static void blink_led(void)
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{
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/* Set the GPIO level according to the state (LOW or HIGH)*/
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gpio_set_level(BLINK_GPIO, s_led_state);
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}
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static void configure_led(void)
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{
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ESP_LOGI(TAG, "Example configured to blink GPIO LED!");
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gpio_reset_pin(BLINK_GPIO);
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/* Set the GPIO as a push/pull output */
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gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);
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}
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#else
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#error "unsupported LED type"
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#endif
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void app_main(void)
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{
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/* Configure the peripheral according to the LED type */
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configure_led();
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while (1) {
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ESP_LOGI(TAG, "Turning the LED %s!", s_led_state == true ? "ON" : "OFF");
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blink_led();
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/* Toggle the LED state */
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s_led_state = !s_led_state;
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vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);
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}
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}
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