void loop() { // read the input on analog pin 0: int sensorValue = analogRead(A0); // print out the value you read: Serial.println(sensorValue); delay(1); // delay in between reads for stability } 这段代码是Arduino编程语言编写的,用于读取模拟输入引脚A0上的值,并通过串行监视器(Serial...
pin:要设置其输出的引脚编号 value:HIGH(1),LOW(0) 返回值:无 模拟I/O 函数 Analog I/O Functions analogWrite(): 描述:在指定引脚输出指定占空比的 PWM 方波 函数原型:analogWrite(pin,value) 参数: pin:输出引脚 value:占空比,介于 0 - 255 之间 返回值:无 analogRead(): 描述:读取指定引脚的模拟信...
void loop() { // read the input on analog pin 0: int sensorValue =analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): float voltage = sensorValue * (5.0 / 1023.0); // print out the value you read: Serial.println(voltage); } 火...
#include<Servo.h>Servo myservo;// create servo object to control a servoint potpin=0;// analog pin used to connect the potentiometerintval;// variable to read the value from the analog pinvoidsetup() { myservo.attach(9);// attaches the servo on pin 9 to the servo object}voidloop()...
analogWrite(pin,Value) pin:3,5,6,9,10 ;在Arduino Mega2560中PWM口编号为2-13 Value: 设置输出的信号占空比,范围0-255 返回:None eg: 1 int ledPin=9; 2 int analogPin=3; 3 int val=0; 4 void setup() 5 { 6 pinMode(ledPin,OUTPUT); ...
// read the input on analog pin 0: int sensorValue = analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): float voltage = sensorValue * (5.0 / 1023.0); // print out the value you read: ...
There are multiple simulation pins on the Arduino board (usually marked as A0-A5), which can be used to read analog signals.以下是一个简单的Arduino示例，演示如何使用模拟引脚读取来自某个传感器的输入：The following is a simple Arduino example. Demonstration of how to use analog pins to read the...
// read the input on analog pin 0: int sensorValue = analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): float voltage = sensorValue * (5.0 / 1023.0); // print out the value you read: ...
sensorValue = analogRead(analogInPin); // 读取模拟输入的值 analogRead函数读出了A0脚获取的模拟输入值,从刚才的演示中可以知道范围是0~1023。 注释:Arduino UNO的内置ADC精度是十位,用二进制表达就是十个二进制位,总信息量就是2的10次方(2^10==1024),从0开始就是0~1023了。 而我们需要电压值,所以做个...
// read the input on analog pin 0: 从模拟针脚 0 读取输入 int sensorValue = analogRead(A0); // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V): 将模拟读取(从 0-1023)转换为电压(0 - 5V): float voltage = sensorValue * (5.0 / 1023.0); ...