Browse Source

Distanzmessung den Anforderungen entsprechend designed

master
Yves Ehrlich 5 years ago
parent
commit
53835d4714
  1. 64
      Code/miniRobot/distance.ino

64
Code/miniRobot/distance.ino

@ -0,0 +1,64 @@
#define maxDistance 400
int trig;
int echo;
//ISR for PCINT2
ISR(PCINT2_vect) {
if((PIND & 64) > 0) {
pulseStart = micros();
} else {
startNewMeasurement = true;
pulseLength = micros() - pulseStart;
newResult = true;
}
PCIFR = 0;
}
void setEchoPins(int pin1, int pin2){
trig = pin1;
echo = pin2;
PCIFR = 0;
PCICR |= 0b00000100;
PCMSK2 |= (1 << echo);
// Initializing Trigger Output and Echo Input
pinMode(trig, OUTPUT);
pinMode(echo, INPUT);
// Reset the trigger pin and wait a half a second
digitalWrite(trig, LOW);
delayMicroseconds(500);
}
int16_t calculateDistance(){
int16_t result = 1;
if(pulseLength > 0) {
result = (int16_t)(pulseLength / 58);
}
if(result > maxDistance){
result = maxDistance;
}
newResult = false;
//Serial.println(result);
return result;
}
void measureDistance(){
digitalWrite(trig, HIGH);
// ... wait for 10 µs ...
delayMicroseconds(10);
// ... put the trigger down ...
digitalWrite(trig, LOW);
//Serial.println("messe...");
startNewMeasurement = false;
}
Loading…
Cancel
Save