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esp32-c-简单应用笔记

news 2025/8/23 7:05:24

1、资料

ESP32 开发环境 Espressif-IDE:
https://blog.csdn.net/chuner0425/article/details/123466848
https://blog.csdn.net/bin_zhang1/article/details/129993820?utm_medium=distribute.pc_relevant.none-task-blog-2_defaultbaidujs_baidulandingword~default-0-129993820-blog-129054762.235^v40pc_relevant_default_base&spm=1001.2101.3001.4242.1&utm_relevant_index=3

开发板资料：https://wiki.luatos.com/chips/esp32c3/hardware.html

API资料：https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32c3/api-reference/peripherals/gpio.html

头文件路径：components/esp_driver_gpio/include/driver/gpio.h

应用示例路径：GPIO 输出和输入中断示例：peripherals/gpio/generic_gpio。

程序调试的Log是可以在程序中选择：
esp_log_level_set( TAG, ESP_LOG_INFO );ESP_LOG_NONE: 禁用所有日志输出
ESP_LOG_ERROR: 仅输出错误信息
ESP_LOG_WARN: 输出警告和错误信息
ESP_LOG_INFO: 输出信息、警告和错误信息
ESP_LOG_DEBUG: 输出调试、信息、警告和错误信息
ESP_LOG_VERBOSE: 输出所有日志信息vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);               //延时1s
时钟速率设为1000hz，时间片是1ms及portTICK_PERIOD_MS=1000/configTICK_RATE_HZ=1ms
所以vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);
等价于vTaskDelay（1000/1000）=vTaskDelay（1）=1s
————————————————#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "led_strip.h"
#include "sdkconfig.h"static const char *TAG = "LED";#define LED1_GPIO 12
#define LED2_GPIO 13static uint8_t s_led_state = 0;
static led_strip_handle_t led_strip;static void blink_led(void)
{//设置某个GPIO的 输出电平gpio_set_level(LED1_GPIO, s_led_state);gpio_set_level(LED2_GPIO, s_led_state);
}static void configure_led(void)
{/* Set the GPIO as a push/pull output */gpio_reset_pin(LED1_GPIO);gpio_set_direction(LED1_GPIO, GPIO_MODE_OUTPUT); //设置GPIO方向（输入 或者 输出）gpio_reset_pin(LED2_GPIO);gpio_set_direction(LED2_GPIO, GPIO_MODE_OUTPUT);
}void app_main(void)
{configure_led();esp_log_level_set(TAG, ESP_LOG_VERBOSE);while (1){ESP_LOGI(TAG, "Turning the LED %s!", s_led_state == true ? "ON" : "OFF");blink_led();/* Toggle the LED state */s_led_state = !s_led_state;vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);}
}运行后打印的：
I (3927313) LED: Turning the LED ON!
I (3928313) LED: Turning the LED OFF!

2、创建线程的LED闪烁

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "led_strip.h"
#include "sdkconfig.h"static const char *TAG = "LED";#define LED1_GPIO 12
#define LED2_GPIO 13static uint8_t s_led_state = 0;
static led_strip_handle_t led_strip;static void blink_led(void)
{/* Set the GPIO level according to the state (LOW or HIGH)*/gpio_set_level(LED1_GPIO, s_led_state);gpio_set_level(LED2_GPIO, s_led_state);
}static void configure_led(void)
{/* Set the GPIO as a push/pull output */gpio_reset_pin(LED1_GPIO);gpio_set_direction(LED1_GPIO, GPIO_MODE_OUTPUT);gpio_reset_pin(LED2_GPIO);gpio_set_direction(LED2_GPIO, GPIO_MODE_OUTPUT);
}static void LED_task(void *pvParameters)
{while (1){s_led_state = !s_led_state;blink_led();ESP_LOGI(TAG, "LED_task the LED %s!", s_led_state == true ? "ON" : "OFF");vTaskDelay(1000 / portTICK_PERIOD_MS); //1000ms}
}void app_main(void)
{configure_led();esp_log_level_set(TAG, ESP_LOG_VERBOSE);xTaskCreate(&LED_task, "LED_task", 2048, NULL, 5, NULL); // 创建任务while (1){vTaskDelay(5000 / portTICK_PERIOD_MS); //5000ms}
}