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Arduino library (for reference only)

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Arduino libraries (Qualcomm Arduino, ESP32)

The Qualcomm Arduino language system was designed with reference to C, C++, and Java, resulting in a comprehensive yet concise language. Its syntax is more similar to C++, but it does not support C++ exception handling and lacks the STL library. You can think of it as a streamlined version of C++.

Reference: Arduino Common Library Functions and Quick Study Guide


int led0 = 13;

// 初始化函数
void setup()    //运行一遍
{
  //将LED灯引脚(引脚值为13，被封装为了LED_BUTLIN)设置为输出模式
  pinMode(led0, OUTPUT);
//OUTPUT输出信号，输出让led灯亮的信号 给引脚写数据
}

// 循环执行函数
void loop()         //while(true)
{
  digitalWrite(led0, HIGH);   // 打开LED灯   HIGH高电平
  delay(1000);                       // 休眠1000毫秒ms
  digitalWrite(led0, LOW);    // 关闭LED灯
  delay(1000);                       // 休眠1000毫秒ms
}

int main()
{

    while(true)
    {

    }
}

int main()
{
    setup();

    while(true)
    {
        loop();
    }
}

I/O pin initialization function pinMode()

I/O output functions

I/O input function

Simplest motor driver board usage explanation

Introduction to the L298N Motor Driver Board

How do you power the microcontroller and the L298N motor driver board?

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