#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#define BLYNK_TEMPLATE_ID "TMPL6Dwarr5_D"
#define BLYNK_TEMPLATE_NAME "UTS"
#define BLYNK_AUTH_TOKEN "b1CZelQ5GfppAjY7JJQHpbxiWpvOFmXJ"
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
BlynkTimer timer;
#define ECHO_PIN 15
#define TRIG_PIN 2
#define pinBuzzer 25
#define LED 27
#define LED2 14
#define LED3 12
Servo myservo;
int rotasi = 90;
int interval = 0;
bool isAuto = 1;
bool on = 0;
BLYNK_WRITE(V0) {
int state = param.asInt();
if(isAuto){
Blynk.virtualWrite(V0, !state);
}else{
Blynk.virtualWrite(V0, state);
if(!state){
on = 0;
}else{
on = 1;
}
}
}
BLYNK_WRITE(V3) {
int state = param.asInt();
isAuto = state;
}
void send_data() {
float jarak = readDistanceCM();
Blynk.virtualWrite(V1, jarak);
if (isAuto) Serial.println("auto");
else Serial.println("Manual");
}
float readDistanceCM(){
digitalWrite(TRIG_PIN, LOW);
delayMicroseconds(2);
digitalWrite(TRIG_PIN, HIGH);
delayMicroseconds(10);
digitalWrite(TRIG_PIN, LOW);
int duration = pulseIn(ECHO_PIN, HIGH);
return duration * 0.034 / 2;
}
void soundBuzzer(){
if(interval < 500){
tone(pinBuzzer, 350);
digitalWrite(LED, HIGH);
digitalWrite(LED2, LOW);
digitalWrite(LED3, LOW);
}else
if(interval > 500){
tone(pinBuzzer, 300);
digitalWrite(LED2, HIGH);
digitalWrite(LED, LOW);
digitalWrite(LED3, LOW);
}
}
void setup() {
// put your setup code here, to run once:
pinMode(TRIG_PIN, OUTPUT);
pinMode(ECHO_PIN, INPUT);
pinMode(LED, OUTPUT);
pinMode(LED2, OUTPUT);
pinMode(LED3, OUTPUT);
Serial.begin(115200);
pinMode(pinBuzzer, OUTPUT);
myservo.attach(18);
myservo.write(90);
Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
timer.setInterval(1000L, send_data);
Blynk.virtualWrite(V3, isAuto);
}
void loop() {
// put your main code here, to run repeatedly:
Blynk.run();
timer.run();
tutupPalang();
interval +=80;
if(interval>1000) interval = 0;
}
void tutupPalang(){
float jarak = readDistanceCM();
if(isAuto){
if(jarak > 0 && jarak < 100 ){
soundBuzzer();
tutup();
}else{
buka();
noTone(pinBuzzer);
}
}else{
if(on){
soundBuzzer();
tutup();
}else{
buka();
noTone(pinBuzzer);
}
}
}
void tutup(){
if(rotasi <= 90){
myservo.write(rotasi);
delay(100);
rotasi--;
}
if(rotasi <= 0 ) rotasi = 0;
}
void buka(){
if(rotasi <= 90){
myservo.write(rotasi);
delay(100);
rotasi+=4;
digitalWrite(LED, LOW);
digitalWrite(LED2, LOW);
digitalWrite(LED3, HIGH);
}
if(rotasi >= 90 ) rotasi = 90;
}