硬件准备

震动传感器：1个

红黄绿LED灯：各一个

旋钮电位器：1个

直流电机：1个

1K电阻：1个

220欧电阻：3个

杜邦线：若干

硬件连线

软件程序

const int analogInPin = A0;//PWM输入引脚
const int analogOutPin = 3;//PWM输出引脚
const int vibPin = 4;//震动传感器const int RLed = 10;
const int YLed = 9;
const int GLed = 8;int sensorValue = 0;//电位器电压值
int outputValue = 0;//模拟量输出装（PWM）
int vibValue = 0;//震动传感器值void setup() {Serial.begin(9600);pinMode(analogOutPin,OUTPUT);pinMode(RLed,OUTPUT);pinMode(YLed,OUTPUT);pinMode(GLed,OUTPUT);
}void loop() {//读取模拟值sensorValue = analogRead(analogInPin);vibValue = digitalRead(vibPin);//变换数据区间outputValue = map(sensorValue, 0, 1023, 0, 255);//判断速度，相应的灯亮if (outputValue < 110) {digitalWrite(GLed, HIGH);digitalWrite(YLed, LOW);digitalWrite(RLed, LOW);Serial.println("绿灯亮");delay(1000);} else if (outputValue < 180) {digitalWrite(GLed, LOW);digitalWrite(YLed, HIGH);digitalWrite(RLed, LOW);Serial.println("黄灯亮");delay(1000);} else if (outputValue < 255) {digitalWrite(GLed, LOW);digitalWrite(YLed, LOW);digitalWrite(RLed, HIGH);Serial.println("红灯亮");delay(1000);}else{Serial.println("都不亮");}Serial.print("震动值：");Serial.println(vibValue);//输出对应的PWM值if (vibValue == 1) {analogWrite(analogOutPin, outputValue);Serial.println("电机转动");}else {analogWrite(analogOutPin, 0);}//打印结果到串口监视器Serial.print("sensor = ");Serial.println(sensorValue);Serial.print("output = ");Serial.println(outputValue);Serial.println("");delay(2);
}