代码段

点亮板载LED

绝大多数 ESP32‑C3‑Pro‑Mini 板载 LED 引脚是 GPIO8

#define LED 8
void setup() {
  pinMode(LED,OUTPUT);
}
void loop() {
  digitalWrite(LED,HIGH);
  delay(1000);
  digitalWrite(LED,LOW);//常亮
  delay(1000);
}

WIFI连接

#include <WiFi.h>

const char* ssid     = "****";
const char* password = "****";

void setup() {
  Serial.begin(115200);
  // 重点：等待USB虚拟串口完成初始化
  while (!Serial) {
    delay(10);
  }

  Serial.println("程序启动，开始连接WiFi");
  WiFi.begin(ssid, password);
  Serial.print("正在连接 WiFi");

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("\nWiFi 连接成功!");
  Serial.print("本机IP地址: ");
  Serial.println(WiFi.localIP());
}

void loop() {

}