value = readDigitalPin(a,pin) reads data from the specified pin on the Arduino® hardware in connection a. exampleExamples collapse all Read the Value of a Digital Pin This example uses: MATLAB Support Package for Arduino HardwareCopy Code Copy Command Create a connection to Arduino hardware ...
Reads a digital input on pin 2, prints the result to the serial monitor This example code is in the public domain. */ 2. 变量定义 // digital pin 2 has a pushbutton attached to it. Give it a name: int pushButton = 2; 定义了一个变量pushButton,并将其赋值为2。这表示代码将操作数字...
digital Read(PIN) 参数: pin:你想读取的引脚号(int) 返回 HIGH或LOW 例子: led Pin=13//LED连接到13脚 intinPin=7;//按钮连接到数字引脚7 intval=0;//定义变量存以储读值 voidsetup() { pin Mode(led Pin, OUTPUT) ;//将13脚设置为输出 pin Mode(inPin, INPUT) ;//将7脚设置为输入 voidloop(...
数字I/O 函数 Digital I/O Functions pinMode(): 描述:将指定的引脚配置为输入或者输出的模式 函数原型:pinModel(pin,mode) 参数: pin:要设置其模式的引脚编号 mode:INPUT(输入模式),OUTPUT(输出模式),INPUT_PULLUP(上拉输入模式) 返回值:无 digitalRead(): 描述:读取指定数字引脚的值 函数原型:digitalRe...
格瑞图:Arduino-0002-内置示例-模拟读 Analog Read Serial 格瑞图:Arduino-0003-内置示例-最简化代码 Bare Minimum 格瑞图:Arduino-0004-内置示例-闪烁 Blink 1、示例代码及解析 (1)代码 /* DigitalReadSerial Reads a digital input on pin 2, prints the result to the Serial Monitor ...
Turns on and off a light emitting diode(LED) connected to digital pin 13, when pressing a pushbutton attached to pin 2. The circuit: - LED attached from pin 13 to ground - pushbutton attached to pin 2 from +5V - 10K resistor attached to pin 2 from ground ...
void setup() { pinMode(ledPin, OUTPUT); // sets the digital pin 13 as output pinMode(inPin, INPUT); // sets the digital pin 7 as input } void loop() { val = digitalRead(inPin); // read the input pin digitalWrite(ledPin, val); // sets the LED to the button's value } 注...
pinMode() digitalRead() delay() int serial DigitalPins AnalogReadSerial - 读取电位计,并打印它的状态到Arduino串口监视器 BareMinimum - 需要开始一个新的程序的最简框架 Blink - 使LED灯开和关 DigitalReadSerial - 读取一个开关,打印其状态到Arduino串口监视器 ...
#define LED_PIN 2 #define COLOR_ORDER GRB CRGB leds[NUM_LEDS]; voidsetup(){ FastLED.addLeds<WS2812, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS); FastLED.setBrightness(brightness); // Set the 45 proximity sensors pins as inputs, from digital pin 3 to pin 48 ...
电路图原理图代码：#include <Adafruit_Sensor.h>#include <DHT.h>#include <DHT_U.h>#define DHTPIN A0 // Digital pin connected to the DHT sensor #define DHTTYPE DHT11 // DHT 22 (AM2302)DHT_Unified dht(DHTPIN, DHTTYPE);包括库函数的头文件初始化针脚位数字接法对象实体int time;ui...