/*Analog InputDemonstrates analog input by reading an analog sensor on analog pin 0 andturning on and off a light emittingdiode(LED) connected to digital pin 13.The amount of time the LED will be on and off depends on the value obtainedby analogRead().The circuit:- potentiometercenter pin ...
Today, the editor will bring you"Learning Arduino"Welcome to visit!思维导图Mind mapping在Arduino中，模拟输入通常指的是通过Arduino的模拟引脚读取来自传感器、按钮或其他模拟设备的电压值。Arduino板上有多个模拟引脚（通常标记为A0-A5），可以用来读取模拟信号。In Arduino, analog input usually refers to the v...
Demonstrates analog input by reading an analog sensor on analog pin 0 and turning on and off a light emitting diode(LED) connected to digital pin 13. The amount of time the LED will be on and off depends on the value obtained by analogRead(). The circuit: * Potentiometer attached to ana...
const int analogInPin = A0; // Analog input pin that the potentiometer is attached to const int analogOutPin = 9; // Analog output pin that the LED is attached to int sensorValue = 0; // value read from the pot int outputValue = 0; // value output to the PWM (analog out) void...
// read the input on analog pin 0: 从模拟针脚 0 读取输入 int sensorValue = analogRead(A0); // print out the value you read: 打印读取的数值 Serial.println(sensorValue); delay(1); // delay in between reads for stability 在两次读取间延迟,以保持稳定性 ...
1.analogRead ( pin ) : ① 模拟输入引脚是带有ADC(Analog-to-Digital Converter,模数转换器)功能的引脚。 ②它可以将外部输入的模拟信号转换为芯片运算时可以识别的数字信号,从而实现读入模拟值的功能。 ③模拟输入功能需要使用analogRead() 函数。 参数:参数pin是指定要读取模拟值的引脚,被指定的引脚必须是模拟输入...
Demonstrates analog input by reading an analog sensor on analog pin 0 and turning on and off a light emitting diode(LED) connected to digital pin 13. The amount of time the LED will be on and off depends on the value obtained by analogRead(). ...
analogPin:连接到声音传感器模块的模拟信号引脚(A0)。 digitalPin:连接到声音传感器模块的数字信号引脚(D2,可选)。 初始化: 在setup()函数中,设置数字引脚模式为输入(如果使用数字输出)。 pinMode(digitalPin, INPUT):设置数字引脚为输入(可选)。 Serial.begin(9600):启动串口通信,波特率为9600。
const int analogInPin = A0; // Analog input pin that the potentiometer is attached to const int analogOutPin = 9; // Analog output pin that the LED is attached to int sensorValue = 0; // value read from the pot int outputValue = 0; // value output to the PWM (analog out) ...
Analog Input 本例向你展示在A0口读取输出模拟信号的传感器的值,并且根据这个值让13号引脚的LED闪烁。LED的闪烁周期根据analogRead()返回值确定。 在代码开头,sensorPin变量被设置为A0,A0口连接着电位器。LED引脚被设置为13。你也可创建另一个sensorValue变量来存储从传感器读出来的值。