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Code für Ultraschall sensor optimiert, schwankungen eliminiert

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Johannes Krug
2019-05-06 18:17:31 +02:00
parent 0821b8ed9f
commit 29fdc20ea2
3 changed files with 166 additions and 20 deletions
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arduino/Ultrasonic_Sensor/Ultrasonic_Sensor.ino
+38 -19
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@@ -1,3 +1,5 @@
#define DISTANCE 15
// defines pins numbers
const int trigPin = 2; //D4
const int echoPin = 0; //D3
@@ -5,31 +7,48 @@ const int echoPin = 0; //D3
// defines variables
long duration;
int distance;
int bool1 = 0;
void setup() {
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
Serial.begin(9600); // Starts the serial communication
pinMode(trigPin, OUTPUT); // Sets the trigPin as an Output
pinMode(echoPin, INPUT); // Sets the echoPin as an Input
Serial.begin(9600); // Starts the serial communication
}
void loop() {
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Clears the trigPin
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Sets the trigPin on HIGH state for 10 micro seconds
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Reads the echoPin, returns the sound wave travel time in microseconds
duration = pulseIn(echoPin, HIGH);
// Calculating the distance
distance= duration*0.034/2;
// Prints the distance on the Serial Monitor
Serial.print("Distance: ");
Serial.println(distance);
delay(2000);
// Calculating the distance
distance = duration * 0.034 / 2;
// Prints the distance on the Serial Monitor
if (bool1 == 0) {
//if ((distance != (DISTANCE - 1)) && (distance != (DISTANCE)) && (distance != (DISTANCE + 1))) { //+-1
if(((DISTANCE+2)<distance)|| ((DISTANCE-2)>distance)){ //darf +- 2 um festgelegte entfernung schwanken, um störungen herauszufiltern
Serial.print("Motion detected: ");
Serial.println(distance);
bool1 = 1;
}
}
else if(bool1==1){
if(((DISTANCE+2)<distance)|| ((DISTANCE-2)>distance)){ //darf +- 2 um festgelegte entfernung schwanken, um störungen herauszufiltern
Serial.print("Still motion detected: ");
Serial.println(distance);
}
else{
//Flag wieder auf 0
bool1=0;
}
}
delay(100);
}