VS Code LED Blink Project with ESP-IDF

 VS Code LED Blink Project with ESP-IDF

源自於 https://esp32tutorials.com/esp32-gpio-esp-idf-led-blinking-example/

main.c

#include <stdio.h>

#include "driver/gpio.h"

#include "freertos/FreeRTOS.h"

#include "freertos/task.h"

#define LED_PIN 13

void app_main(void)

{

    // 配置 GPIO

    gpio_set_direction(LED_PIN, GPIO_MODE_OUTPUT);

   

    // 使用一個整數來追蹤 LED 的狀態 (1: ON, 0: OFF)

    int led_state = 0;

    while(true)

    {

        // 1. 切換 LED 狀態

        // 使用 XOR 運算符 '!' 來切換 0 和 1 (0 -> 1, 1 -> 0)

        led_state = !led_state;

       

        // 2. 設定 GPIO 輸出電平

        gpio_set_level(LED_PIN, led_state);

       

        // 3. 透過序列埠顯示狀態

        if (led_state == 1) {

            printf("LED=ON\n");

        } else {

            printf("LED=OFF\n");

        }

       

        // 4. 延遲 1000 毫秒 (1 秒)

        vTaskDelay(1000 / portTICK_PERIOD_MS);

    }

}

diagram.json

{

  "version": 1,

  "author": "alex wu",

  "editor": "wokwi",

  "parts": [

    { "type": "wokwi-breadboard-mini", "id": "bb1", "top": -59, "left": -184.8, "attrs": {} },

    {

      "type": "board-esp32-devkit-c-v4",

      "id": "esp",

      "top": -153.6,

      "left": 33.64,

      "attrs": { "builder": "esp-idf" }

    },

    {

      "type": "wokwi-resistor",

      "id": "r2",

      "top": -24.85,

      "left": -105.6,

      "attrs": { "value": "1000" }

    },

    {

      "type": "wokwi-led",

      "id": "led1",

      "top": -70.8,

      "left": -130.6,

      "attrs": { "color": "red" }

    }

  ],

  "connections": [

    [ "esp:TX", "$serialMonitor:RX", "", [] ],

    [ "esp:RX", "$serialMonitor:TX", "", [] ],

    [ "r2:1", "bb1:8t.d", "", [ "$bb" ] ],

    [ "r2:2", "bb1:14t.d", "", [ "$bb" ] ],

    [ "led1:A", "bb1:8t.c", "", [ "$bb" ] ],

    [ "led1:C", "bb1:7t.c", "", [ "$bb" ] ],

    [ "esp:13", "bb1:14t.e", "green", [ "h0" ] ],

    [ "esp:GND.1", "bb1:7t.d", "black", [ "h-38.25", "v-96", "h-134.4", "v9.6" ] ]

  ],

  "dependencies": {}

}