Arduino全套零基础入门视频教程(适合0基础,含arduino项目保姆级教程)_哔哩哔哩_bilibili
Arduino全套零基础入门视频进阶教程(适合0基础,含arduino项目保姆级教程)_哔哩哔哩_bilibili
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
int value = 1;
int a = 666;
int b = 888;
switch (value)
{
case 1:
Serial.println(a);
break;
case 2:
Serial.println(b);
break;
default:
Serial.println("无满足条件");
break;
}
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
// for循环的应用
int i ;
for ( i = 0; i <= 10; i++)
{
Serial.println(i);
}
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
int a = 0;
while (a <= 10)
{
// 循环体
Serial.println(a);
// 循环变量变化式
a++;
}
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
int a = 0;
do
{
// 循环体
Serial.println(a);
// 循环变量表达式
a++;
}
while (a == 10);
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
for (int a = 0; a<=10; a++)
{
Serial.println(a);
if (a == 5)
{
break;
}
}
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
for (; ; )
{
Serial.println("123");
}
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
// 引脚模式设置(OUTPUT/INPUT)
pinMode(2, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
for (int i = 0; i <= 10; i++)
{
// 数字输出:高1,低0
digitalWrite(2, HIGH); // 小鱼的开发板,HIGH电平灯熄灭
delay(1000);
digitalWrite(2, LOW);
delay(1000);
}
delay(100000); // 循环闪烁完成以后,灯处于LOW电平
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
// 引脚模式设置(OUTPUT/INPUT)
pinMode(2, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
int a = 0;
while (a <= 10) {
// 数字输出:高1,低0
digitalWrite(2, HIGH); // 小鱼的开发板,HIGH电平灯熄灭
delay(100);
digitalWrite(2, LOW);
delay(100);
a++;
}
delay(100000); // 循环闪烁完成以后,灯处于LOW电平
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
// 引脚模式设置(OUTPUT/INPUT)
pinMode(2, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
int a = 0;
do
{
digitalWrite(2, HIGH); // 小鱼的开发板,HIGH电平灯熄灭
delay(100);
digitalWrite(2, LOW);
delay(100);
a++;
} while (a <= 10);
delay(100000); // 循环闪烁完成以后,灯处于LOW电平
}
// put function definitions here:
模拟输入:analogRead(pin)
模拟输出:analogWrite(pin, value)
#include
// put function declarations here:
int delayTime = 1000;
void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
for (int pin = 2; pin <= 6; pin++)
{
pinMode(pin, OUTPUT);
}
}
void loop()
{
// put your main code here, to run repeatedly:
for (int pin = 2; pin <= 6; pin++)
{
digitalWrite(pin, HIGH);
delay(delayTime);
digitalWrite(pin, LOW);
delay(delayTime);
}
}
// put function definitions here:
#include
// put function declarations here:
void setup()
{
// put your setup code here, to run once:
pinMode(3, OUTPUT);
}
void loop()
{
// put your main code here, to run repeatedly:
while (1)
{
for (int value = 0; value <= 255; value++)
{
analogWrite(3, value);
delay(5);
}
for (int value = 255; value >= 0; value--)
{
analogWrite(3, value);
delay(5);
}
};
}
// put function definitions here:
#include
// put function declarations here:
// 点击亮灯,松手熄灯
// 一个引脚用来点亮led
// 另一个引脚检测按键
int led = 16;
int botton = 15;
void setup()
{
// put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(botton, INPUT_PULLUP); //使用输入上拉模式,不然灯会一直闪烁
}
void loop()
{
// put your main code here, to run repeatedly:
while (1)
{
if (digitalRead(botton) == LOW) // 接地,相当于低电平
{
digitalWrite(led, HIGH);
}
else
{
digitalWrite(led, LOW);
}
}
}
// put function definitions here:
输入状态,会导致电平忽高忽低
#include
// put function declarations here:
// 点击持续亮灯,再点击熄灯
// 一个引脚用来点亮led
// 另一个引脚检测按键
int led = 16;
int botton = 15;
void setup()
{
// put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(botton, INPUT_PULLUP); // 使用输入上拉模式,不然灯会一直闪烁
}
void loop()
{
// put your main code here, to run repeatedly:
while (1)
{
if (digitalRead(botton) == LOW) // 判断是否被按下了,接地,相当于低电平
{
delay(100); // 去抖动,防止误触
if (digitalRead(botton) == LOW)
{
digitalWrite(led, !digitalRead(led)); // !HIGH = LOW
}
}
}
}
// put function definitions here:
#include
// put function declarations here:
// 点击变换三挡亮度
// 一个引脚用来点亮led
// 另一个引脚检测按键
int led = 16; // 要求能用模拟量输出
int botton = 15;
int value = 0;
void setup()
{
// put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(botton, INPUT_PULLUP); // 使用输入上拉模式,不然灯会一直闪烁
}
void loop()
{
// put your main code here, to run repeatedly:
while (1)
{
if (digitalRead(botton) == LOW) // 判断是否被按下了,接地,相当于低电平
{
delay(100); // 去抖动,防止误触
if (digitalRead(botton) == LOW)
{
analogWrite(led, value); // 零档,熄灭档位(255/3 = 80)
value = value + 80; // 档位变高
}
}
if (value > 255)
{
value = 0;
}
}
}
// put function definitions here:
#include
// put function declarations here:
int led = 11; // 要求能用模拟量输出
int key = A0;
int value;
int ledValue;
void setup()
{
// put your setup code here, to run once:
pinMode(led, OUTPUT);
pinMode(key, INPUT);
}
void loop()
{
// put your main code here, to run repeatedly:
while (1)
{
value = analogRead(key); // 返回0-1023
ledValue = map(value, 0, 1023, 0, 255);
analogWrite(led, ledValue); // 返回0-255
}
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println("hello");
Serial.println("A");
Serial.println(123);
Serial.println(1.23456789);
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println(2, BIN); //二进制
Serial.println(2, DEC); //十进制
}
void loop() {
// put your main code here, to run repeatedly:
}
// put function definitions here:
ASCII码一览表,ASCII码对照表 (biancheng.net)
#include
// put function declarations here:
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
// Serial.println(2, BIN); //二进制
// Serial.println(2, DEC); //十进制
// Serial.write("A\n");
// Serial.write(65 );
// Serial.write(0x41);
}
void loop() {
// put your main code here, to run repeatedly:
if (Serial.available()) // >0 可以不写
{
Serial.println(Serial.read()); // Serial.read()返回ASCII码
Serial.write(Serial.read()); // 要用Serial.write解析
}
}
// put function definitions here:
#include
// put function declarations here:
void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
// Serial.println(2, BIN); //二进制
// Serial.println(2, DEC); //十进制
// Serial.write("A\n");
// Serial.write(65 );
// Serial.write(0x41);
}
void loop()
{
// put your main code here, to run repeatedly:
// if (Serial.available()) // >0 可以不写
// {
// Serial.println(Serial.read()); // Serial.read()返回ASCII码
// Serial.write(Serial.read()); // 要用Serial.write解析
// }
if (Serial.available())
{
Serial.println(Serial.parseInt());
Serial.println(Serial.parseFloat());
}
}
// put function definitions here:
#include
// put function declarations here:
// 1、建立开发板与电脑的串口通讯连接,并向电脑输出自己的姓名、年龄、身高
// 2、实现通过串口监视器给开发板发信息,开发板再把接收到的数据发回给电脑
// 3、实现加法计算器,如:电脑发送:“1+2”,开发版回答:”1+2=3“
// 4、实现电脑与开发板进行三句以上简单的对话。如:电脑发送:“a”,开发版回答:“Arduino”
void setup()
{
// put your setup code here, to run once:
// 题目一
Serial.begin(115200);
Serial.println("姓名:坤坤");
Serial.println("年龄:两年半");
Serial.println("身高:180cm");
}
void loop()
{
// put your main code here, to run repeatedly:
// 题目二
if (Serial.available())
{
Serial.write(Serial.read());
}
}
// put function definitions here:
#include
// put function declarations here:
// 1、建立开发板与电脑的串口通讯连接,并向电脑输出自己的姓名、年龄、身高
// 2、实现通过串口监视器给开发板发信息,开发板再把接收到的数据发回给电脑
// 3、实现加法计算器,如:电脑发送:“1+2”,开发版回答:”1+2=3“
// 4、实现电脑与开发板进行三句以上简单的对话。如:电脑发送:“a”,开发版回答:“Arduino”
void setup()
{
// put your setup code here, to run once:
// 题目一
Serial.begin(115200);
Serial.println("姓名:坤坤");
Serial.println("年龄:两年半");
Serial.println("身高:180cm");
}
void loop()
{
// put your main code here, to run repeatedly:
// 题目二
if (Serial.available())
{
Serial.write(Serial.read());
}
}
// put function definitions here:
#include
// put function declarations here:
int a = 0;
int b = 0;
int c = 0;
void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
}
void loop()
{
// put your main code here, to run repeatedly:
Serial.println("请输入a:");
while (!a) // a不等于零
{
if (Serial.available())
{
a = Serial.parseInt();
}
}
Serial.println("请输入b:");
while (!b)
{
if (Serial.available())
{
b = Serial.parseInt();
}
}
c = a + b;
Serial.print(a);
Serial.print("+");
Serial.print(b);
Serial.print("=");
Serial.println(c);
a = 0;
b = 0;
}
#include
// put function declarations here:
int a = 0;
int b = 0;
int c = 0;
void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
}
void loop()
{
// put your main code here, to run repeatedly:
Serial.println("请选择(1,2,3):");
while (!a)
{
if (Serial.available())
{
a = Serial.parseInt();
}
}
if (a == 1)
{
Serial.println("你选择了1");
}
else if (a == 2)
{
Serial.println("你选择了2");
}
else if (a == 3)
{
Serial.println("你选择了3");
}
else
{
Serial.println("没有这个选项");
}
a = 0;
}
#include
// put function declarations here:
int led = 2;
int button = 0;
void set()
{
Serial.println("按键被按下了");
}
void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(led, OUTPUT);
digitalWrite(button, HIGH);
attachInterrupt(0, set, FALLING);
}
void loop()
{
// put your main code here, to run repeatedly:
digitalWrite(led, HIGH);
Serial.println("111111");
delay(1000);
digitalWrite(led, LOW);
Serial.println("00000");
delay(1000);
}
// put function definitions here:
#include
#include
#include
// put function declarations here:
Adafruit_SSD1306 oled(128, 64, &Wire, -1);
void setup() {
// put your setup code here, to run once:
oled.begin(SSD1306_SWITCHCAPVCC, 0x3c);
}
void loop() {
// put your main code here, to run repeatedly:
oled.clearDisplay(); // 清除缓存
oled.setTextSize(2); //字体大小
oled.setTextColor(1); //字体颜色
oled.setCursor(0, 0); //光标位置
oled.print("hello"); //输出,输出到缓存里边
oled.display(); //显示到屏幕
delay(2000);
}
// put function definitions here:
#include
#include
#include
// put function declarations here:
Adafruit_SSD1306 oled(128, 64, &Wire, -1);
static const unsigned char PROGMEM wen[]={
0x02, 0x00, 0x01, 0x00, 0x01, 0x00, 0xFF, 0xFE, 0x10, 0x10, 0x10, 0x10, 0x08, 0x20, 0x08, 0x20,
0x04, 0x40, 0x20, 0x80, 0x01, 0x00, 0x02, 0x80, 0x04, 0x40, 0x80, 0x20, 0x30, 0x18, 0xC0, 0x06,
}; // 文
void setup() {
// put your setup code here, to run once:
oled.begin(SSD1306_SWITCHCAPVCC, 0x3c);
}
void loop() {
// put your main code here, to run repeatedly:
oled.clearDisplay();
oled.drawBitmap(0, 0, wen, 16, 16, 1); //显示中文汉字,需要几个复制几个
oled.display();
delay(2000);
}
找简单的图片,注意调整尺寸,保存成bmp格式
oled.drawBitmap(0, 0, wen, *, *, 1)
图片的话,**位置的尺寸必须和图片一样
UU在线工具 - 便捷实用的工具集合站 (uutool.cn)
drawFastHLine:画一条水平的线
drawFastHLine:画一条竖直的线
startscrollright(0x00, 0x0f)--全屏滚动:向右滚动
startscrollleft(0x00, 0x0f):向左滚动
startscrolldiagright--全屏滚动:对角线向右滚动
startscrolldiagleft:对角线向左滚动
stopscroll():停止滚动
(转载)Arduino学习笔记:基于LiquidCrystal库运行LCD1602_#include
(转载)My_arduino(4)-------LiquidCrystal_I2C库文件_fatal error: liquidcrystal_i2c.h:_瞲_大河弯弯的博客-CSDN博客
转载:Arduino使用TM1637四位数码管_tm1637.set_蔚蓝慕的博客-CSDN博客
#include
void setup()
{
for (int i = 2; i <= 13; i++)
{
pinMode(i, OUTPUT);
delay(10);
}
digitalWrite(2, HIGH); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
digitalWrite(6, LOW); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, LOW); // 第c段
digitalWrite(9, HIGH); // 第d段
digitalWrite(10, HIGH); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void loop()
{
//
}
#include
void setup()
{
for (int i = 2; i <= 13; i++)
{
pinMode(i, OUTPUT);
delay(10);
}
}
void loop()
{
// 第一个显示1
com1();
num_1();
delay(3);
clear();
// 第二个显示2
com2();
num_2();
delay(3);
clear();
// 第三个显示1
com3();
num_1();
delay(3);
clear();
// 第四个显示2
com4();
num_2();
clear();
}
void com1()
{
digitalWrite(2, HIGH); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
}
void com2()
{
digitalWrite(2, LOW); // 驱动第一位数码管
digitalWrite(3, HIGH); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
}
void com3()
{
digitalWrite(2, LOW); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, HIGH); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
}
void com4()
{
digitalWrite(2, LOW); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, HIGH); // 驱动第四位数码管
}
void num_0()
{
digitalWrite(6, LOW); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, LOW); // 第c段
digitalWrite(9, LOW); // 第d段
digitalWrite(10, LOW); // 第e段
digitalWrite(11, LOW); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void num_1()
{
digitalWrite(6, HIGH); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, LOW); // 第c段
digitalWrite(9, HIGH); // 第d段
digitalWrite(10, HIGH); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void num_2()
{
digitalWrite(6, LOW); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, HIGH); // 第c段
digitalWrite(9, LOW); // 第d段
digitalWrite(10, LOW); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, LOW); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void clear()
{
digitalWrite(6, HIGH); // 第a段
digitalWrite(7, HIGH); // 第b段
digitalWrite(8, HIGH); // 第c段
digitalWrite(9, HIGH); // 第d段
digitalWrite(10, HIGH); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
第一位数字动态显示
#include
int a = 0;
void setup()
{
for (int i = 2; i <= 13; i++)
{
pinMode(i, OUTPUT);
delay(10);
}
}
void loop()
{
// 第一个显示,动态显示1,2
if (a > 2)
{
a = 0;
}
clear();
com1(); // 位选
if (a == 0)
{
num_0(); // 段选
}
else if (a == 1)
{
num_1(); // 段选
}
else if (a == 2)
{
num_2(); // 段选
}
a++;
delay(1000);
}
void com1()
{
digitalWrite(2, HIGH); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
}
void com2()
{
digitalWrite(2, LOW); // 驱动第一位数码管
digitalWrite(3, HIGH); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
}
void com3()
{
digitalWrite(2, LOW); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, HIGH); // 驱动第三位数码管
digitalWrite(5, LOW); // 驱动第四位数码管
}
void com4()
{
digitalWrite(2, LOW); // 驱动第一位数码管
digitalWrite(3, LOW); // 驱动第二位数码管
digitalWrite(4, LOW); // 驱动第三位数码管
digitalWrite(5, HIGH); // 驱动第四位数码管
}
void num_0()
{
digitalWrite(6, LOW); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, LOW); // 第c段
digitalWrite(9, LOW); // 第d段
digitalWrite(10, LOW); // 第e段
digitalWrite(11, LOW); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void num_1()
{
digitalWrite(6, HIGH); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, LOW); // 第c段
digitalWrite(9, HIGH); // 第d段
digitalWrite(10, HIGH); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void num_2()
{
digitalWrite(6, LOW); // 第a段
digitalWrite(7, LOW); // 第b段
digitalWrite(8, HIGH); // 第c段
digitalWrite(9, LOW); // 第d段
digitalWrite(10, LOW); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, LOW); // 第g段
digitalWrite(13, HIGH); // 第h段
}
void clear()
{
digitalWrite(6, HIGH); // 第a段
digitalWrite(7, HIGH); // 第b段
digitalWrite(8, HIGH); // 第c段
digitalWrite(9, HIGH); // 第d段
digitalWrite(10, HIGH); // 第e段
digitalWrite(11, HIGH); // 第f段
digitalWrite(12, HIGH); // 第g段
digitalWrite(13, HIGH); // 第h段
}
#include
// put function declarations here:
#define D3 3 // 火焰传感器数字信号口
// #define A0 // 模拟信号输入口
#define D2 2 // 蜂鸣器数字信号口
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(D3, INPUT);
pinMode(D2, OUTPUT);
}
void loop() {
Serial.print("数字信号:");
Serial.println(digitalRead(D3));
Serial.print("模拟信号:");
Serial.println(analogRead(A0));
Serial.println("-------------------------------");
delay(1000);
if (analogRead(A0) < 400) {
digitalWrite(D2, HIGH);
delay(100);
digitalWrite(D2, LOW);
delay(100);
} else {
digitalWrite(D2, LOW);
}
}
// put function definitions here:
#include
// put function declarations here:
#define D3 3 // 火焰传感器数字信号口
// #define A0 // 模拟信号输入口
#define D2 2 // 蜂鸣器数字信号口
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(D3, INPUT);
pinMode(D2, OUTPUT);
}
void loop() {
// Serial.print("数字信号:");
// Serial.println(digitalRead(D3));
// Serial.print("模拟信号:");
// Serial.println(analogRead(A0));
// Serial.println("-------------------------------");
// delay(1000);
// if (analogRead(D3) < 400)
// {
// digitalWrite(D2, HIGH);
// }
// else
// {
// digitalWrite(D2, LOW);
// }
Serial.println(analogRead(A0));
delay(2000);
}
// put function definitions here:
#include
#include
#include
#define D3 3 // 温湿度信号输入
// put function declarations here:
DHT dht(D3, DHT11);
float temp = 0; // 存储温度值
float humi = 0; // 存储湿度值
float heatindex = 0; //存储酷热指数
void setup() {
// put your setup code here, to run once:
pinMode(D3, INPUT);
Serial.begin(115200);
dht.begin();
}
void loop() {
// put your main code here, to run repeatedly:
temp = dht.readTemperature();
humi = dht.readHumidity();
heatindex = dht.computeHeatIndex(temp, humi, false); // false--摄氏度, true--华氏度
Serial.print("温度");
Serial.print(temp);
Serial.println("℃");
Serial.print("湿度");
Serial.print(humi);
Serial.println("%");
Serial.print("酷热指数");
Serial.print(heatindex);
Serial.println("°F");
Serial.println("------------------------");
delay(2000);
}
#include
// put function declarations here:
#define D3 3 //可燃气体传感器数字输入
#define D2 2 //蜂鸣器数字输入
int sensorValue = 0; // 可燃气体传感器
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
pinMode(D3, INPUT);
pinMode(D2, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
Serial.println(digitalRead(D3));
Serial.println("-------------------");
Serial.println(analogRead(A0));
Serial.println("-------------------");
delay(1000);
if (analogRead(A0) > 300) {
digitalWrite(D2, HIGH);
delay(100);
digitalWrite(D2, LOW);
delay(100);
} else {
digitalWrite(D2, LOW);
}
}
#include
#define D3 3 // 雨滴模拟器数字输入口
#define D2 2 //蜂鸣器数字输入
int rain_val_2 = 0;
void setup()
{
pinMode(D3, INPUT);
pinMode(D2, OUTPUT);
Serial.begin(115200);
}
void loop()
{
// rain_val_1 = digitalRead(4); // 获取数字量
rain_val_2 = analogRead(A0); // 获取模拟量
Serial.println(rain_val_2);
delay(1000);
if (analogRead(A0) < 1000) {
digitalWrite(D2, HIGH);
delay(100);
digitalWrite(D2, LOW);
delay(100);
} else {
digitalWrite(D2, LOW);
}
}
#include
#define trigpin 4
#define echopin 3
#define D2 2 // 蜂鸣器数字输入口
float distance_cm; // 存储距离值,单位cm
void setup()
{
Serial.begin(115200);
pinMode(trigpin, OUTPUT);
pinMode(echopin, INPUT);
pinMode(D2, OUTPUT);
}
void loop()
{
digitalWrite(trigpin, LOW); // 设置初始状态
delayMicroseconds(2); // 发送前准备
digitalWrite(trigpin, HIGH); // 发送超声波信号
delayMicroseconds(10); // 发送持续时间
digitalWrite(trigpin, LOW); // 结束发送超声波信号
// 开始读取并换算为cm
distance_cm = float(pulseIn(echopin, HIGH) * 17) / 1000;
Serial.print(distance_cm);
Serial.println("cm");
Serial.println("---------------------");
// Serial.println(100 + distance_cm * 10);
delay(1000);
if (distance_cm < 45) {
digitalWrite(D2, HIGH);
delay(100 + distance_cm * 10);
digitalWrite(D2, LOW);
delay(100 + distance_cm * 10);
} else {
digitalWrite(D2, LOW);
}
}
#include
// put function declarations here:
#define buzzer 4
void setup() {
// put your setup code here, to run once:
pinMode(buzzer, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(buzzer, HIGH); //发声
delay(1000);
digitalWrite(buzzer, LOW); //不发声
delay(1000);
}
转载:
L298N电机驱动模块的接线使用与代码实现_l298npwm调速接线_Clichong的博客-CSDN博客
当电源<12v的时候,板载5v输出使能跳线帽不用拔掉,>12v可以拔掉,再找一个5v电源给板子供电
#define IN 11//设置信号触发引脚
void setup() {
pinMode(IN,OUTPUT);//设置引脚模式为输出
}
void loop() {
digitalWrite(IN,LOW);//低电平触发
delay(3000);
digitalWrite(IN,HIGH);
delay(3000);
}