int tonePin = 4; //Tone - Red Jumper int trigPin = 9; //Trig - violet Jumper int echoPin = 10; //Echo - yellow Jumper int clockPin = 11; //IC Pin 11 - white Jumper int latchPin = 12; //IC Pin 12 - Blue Jumper int dataPin = 13; //IC Pin 14 - Green Jumper byte possible_patterns[9] = { B00000000, B00000001, B00000011, B00000111, B00001111, B00011111, B00111111, B01111111, B11111111, }; int proximity=0; int duration; int distance; void setup() { //Serial Port Serial.begin (9600); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); pinMode(clockPin, OUTPUT); pinMode(latchPin, OUTPUT); pinMode(dataPin, OUTPUT); pinMode(tonePin, OUTPUT); } void loop() { digitalWrite(latchPin, LOW); digitalWrite(trigPin, HIGH); delayMicroseconds(1000); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance = (duration/2) / 29.1; /*if (distance >= 45 || distance <= 0){ Serial.println("Out of range"); } else { Serial.print(distance); Serial.println(" cm"); }*/ proximity=map(distance, 0, 45, 8, 0); //Serial.println(proximity); if (proximity <= 0){ proximity=0; } else if (proximity >= 3 && proximity <= 4){ tone(tonePin, 200000, 200); } else if (proximity >= 5 && proximity <= 6){ tone(tonePin,5000, 200); } else if (proximity >= 7 && proximity <= 8){ tone(tonePin, 1000, 200); } shiftOut(dataPin, clockPin, MSBFIRST, possible_patterns[proximity]); digitalWrite(latchPin, HIGH); delay(600); noTone(tonePin); }
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