1 单词

2 传感器

水位传感器

参数

代码和线路图

线路图

代码:将水位值转换成厘米

int water;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(8,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
   water=analogRead(A0);
   float x=water/175.0;
   Serial.println(x);
 
}

线路图2

代码:加个呼吸灯，0到1亮绿色，2到3亮红色,4以上亮蓝色

int water,r=11,g=10,b=9;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(8,OUTPUT);
  pinMode(r,OUTPUT);
  pinMode(g,OUTPUT);
  pinMode(b,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
   water=analogRead(A0);
   int x=map(water,0,700,0,4);
   digitalWrite(g,!(x>=0&&x<2));
   digitalWrite(r,!(x>=2&&x<4));
   digitalWrite(b,!(x>=4));
   delay(100);
}

线路图3

代码：当x>=2时，抽水

int water,r=11,g=10,b=9;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(8,OUTPUT);
  pinMode(r,OUTPUT);
  pinMode(g,OUTPUT);
  pinMode(b,OUTPUT);
  pinMode(13,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
   water=analogRead(A0);
   int x=map(water,0,700,0,4);
   digitalWrite(g,!(x>=0&&x<2));
   digitalWrite(r,!(x>=2&&x<4));
   digitalWrite(13,x>=2);
   digitalWrite(b,!(x>=4));
   delay(100);
}

加一个蜂鸣器：x>=3抽水，x>=2报警

int water,r=11,g=10,b=9;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(8,OUTPUT);
  pinMode(r,OUTPUT);
  pinMode(g,OUTPUT);
  pinMode(b,OUTPUT);
  pinMode(13,OUTPUT);
  pinMode(6,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
   water=analogRead(A0);
   int x=map(water,0,700,0,4);
   digitalWrite(g,!(x>=0&&x<2));
   digitalWrite(r,!(x>=2&&x<4));
   digitalWrite(13,x>2);
   digitalWrite(b,!(x>=4));
   if(x>=2) analogWrite(6,233);
   else analogWrite(6,0);
   delay(100);
}