宿舍超聲波感應臺燈基于arduino、超聲波模塊，藍牙模塊，繼電器模塊

ID:426797 · 發表于 2020-10-26 19:56

const int Trigpin=2;
const int Echpin=3;
float cm;
char i;
void setup() {
  // put your setup code here, to run once:
  pinMode(Trigpin,OUTPUT);
  pinMode(Echpin,INPUT);
  pinMode(10,OUTPUT);
  pinMode(8,OUTPUT);
  pinMode(9,OUTPUT);
  digitalWrite(10,HIGH);
  digitalWrite(8,HIGH);
  digitalWrite(9,HIGH);
  Serial.begin(9600);
}
int cmm()
{
  digitalWrite(Trigpin, LOW);
  delayMicroseconds(2);
  digitalWrite(Trigpin, HIGH);
  delayMicroseconds(10);
  digitalWrite(Trigpin, LOW);

  cm = pulseIn(Echpin, HIGH) / 58.8235; //
//cm = (int(cm * 100.0)) / 100.0; //
  return cm;
}
void openlight()
{
  digitalWrite(10,LOW);
  digitalWrite(8,LOW);
}
void closelight()
{
  digitalWrite(10,HIGH);
  digitalWrite(8,HIGH);
}
void loop() {
  // put your main code here, to run repeatedly:
  if(Serial.available())
  {
  char i=Serial.read();
  while(i=='a')
  {
openlight();
if(Serial.available())
{
   char j=Serial.read();
if(j=='b') {
   digitalWrite(8,HIGH);
   digitalWrite(10,HIGH);
   break;}
}
  }
  while(i=='b')
  {
closelight();
  if(Serial.available())
  {char j=Serial.read();
  if(j!='b') {
digitalWrite(8,HIGH);
digitalWrite(10,HIGH);
break;}
  }
  }
  }
  else{
  int a=cmm();
  if(a>0&&a<=110)
  {delay(500);
int b =cmm();
  if(b>0&&b<=110){
delay(15000); }

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宿舍超聲波感應臺燈 基于arduino、超聲波模塊，藍牙模塊，繼電器模塊

宿舍超聲波感應臺燈基于arduino、超聲波模塊，藍牙模塊，繼電器模塊