(Created page with "int melody[32] = { 131,147,165,175,196,220,247, 262,294,330,349,392,440,494, 523,587,659,698,784,881,988, 1047,1175,1319,1397,1568,1760,1976, }; int TRIG = 3, ECHO = 4, speake...") |
No edit summary |
||
| Line 5: | Line 5: | ||
1047,1175,1319,1397,1568,1760,1976, | 1047,1175,1319,1397,1568,1760,1976, | ||
}; | }; | ||
int TRIG = 3, ECHO = 4, speaker = 7; | int TRIG = 3, ECHO = 4, speaker = 7; | ||
void setup() { | void setup() { | ||
Serial.begin(9600); | Serial.begin(9600); | ||
pinMode(TRIG,OUTPUT); | pinMode(TRIG,OUTPUT); | ||
pinMode(ECHO,INPUT); | pinMode(ECHO,INPUT); | ||
pinMode(speaker, OUTPUT); } | pinMode(speaker, OUTPUT); } | ||
void loop() { | void loop() { | ||
float distance, duration; | float distance, duration; | ||
digitalWrite(TRIG, HIGH); | digitalWrite(TRIG, HIGH); | ||
delayMicroseconds(1); | delayMicroseconds(1); | ||
digitalWrite(TRIG,LOW); | digitalWrite(TRIG,LOW); | ||
duration = pulseIn(ECHO,HIGH); | duration = pulseIn(ECHO,HIGH); | ||
distance = ((float)(duration*340)/10000)/2; | distance = ((float)(duration*340)/10000)/2; | ||
Serial.println(distance); | Serial.println(distance); | ||
int i; | int i; | ||
if (distance <= 32) { | if (distance <= 32) { | ||
i=map(distance,0,32,0,7); | i=map(distance,0,32,0,7); | ||
tone (speaker, melody[i], 250); | tone (speaker, melody[i], 250); | ||
delay (300); | delay (300); | ||
} | } | ||
else { | else { | ||
noTone(speaker); | noTone(speaker); | ||
Revision as of 09:59, 1 December 2021
int melody[32] = { 131,147,165,175,196,220,247, 262,294,330,349,392,440,494, 523,587,659,698,784,881,988, 1047,1175,1319,1397,1568,1760,1976, };
int TRIG = 3, ECHO = 4, speaker = 7;
void setup() {
Serial.begin(9600);
pinMode(TRIG,OUTPUT);
pinMode(ECHO,INPUT);
pinMode(speaker, OUTPUT); }
void loop() {
float distance, duration;
digitalWrite(TRIG, HIGH);
delayMicroseconds(1);
digitalWrite(TRIG,LOW);
duration = pulseIn(ECHO,HIGH);
distance = ((float)(duration*340)/10000)/2;
Serial.println(distance);
int i;
if (distance <= 32) {
i=map(distance,0,32,0,7);
tone (speaker, melody[i], 250);
delay (300);
}
else {
noTone(speaker);
}
}