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64 lines
1.2 KiB
64 lines
1.2 KiB
4 years ago
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#include "Arduino.h"
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#include "SoftwareSerial.h"
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#include "DFRobotDFPlayerMini.h"
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SoftwareSerial mySoftwareSerial(10, 11);
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DFRobotDFPlayerMini myDFPlayer;
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#define LED 6
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#define TRIG 4
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#define ECHO 5
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#define TRIG_DIST 100 // min trigger distance
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#define SOUND 7
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long duration, cm;
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void setup() {
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mySoftwareSerial.begin(9600);
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Serial.begin(9600);
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pinMode(TRIG, OUTPUT);
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pinMode(ECHO, INPUT);
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pinMode(SOUND, OUTPUT);
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pinMode(LED, OUTPUT);
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if (!myDFPlayer.begin(mySoftwareSerial)) {
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Serial.println(F("Unable to begin:"));
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Serial.println(F("1.Please recheck the connection!"));
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Serial.println(F("2.Please insert the SD card!"));
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while(true){
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delay(0);
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}
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}
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myDFPlayer.volume(20);
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}
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void loop() {
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digitalWrite(TRIG, LOW);
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delayMicroseconds(2);
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digitalWrite(TRIG, HIGH);
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delayMicroseconds(10);
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digitalWrite(TRIG, LOW);
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duration = pulseIn(ECHO, HIGH);
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cm = duration / 58;
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Serial.println(cm);
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if(cm <= TRIG_DIST) {
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myDFPlayer.play(1);
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for(int i=0; i<50; i++) {
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analogWrite(LED, i*5);
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delay(50-i);
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}
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analogWrite(LED, 255);
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delay(5000);
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} else {
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digitalWrite(LED, LOW);
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}
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}
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