From efee768233203811d2ac716d6159590bd391d3bd Mon Sep 17 00:00:00 2001
From: Muhammad Izza Alfiansyah <iansyah724@gmail.com>
Date: Fri, 26 Apr 2024 15:24:33 +0700
Subject: [PATCH] add read temperature, humidity, & alkohol at microcontroller

---
 .../sketch_apr22a/sketch_apr22a.ino           | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100644 microcontroller/sketch_apr22a/sketch_apr22a.ino

diff --git a/microcontroller/sketch_apr22a/sketch_apr22a.ino b/microcontroller/sketch_apr22a/sketch_apr22a.ino
new file mode 100644
index 0000000..e864898
--- /dev/null
+++ b/microcontroller/sketch_apr22a/sketch_apr22a.ino
@@ -0,0 +1,82 @@
+#include <LiquidCrystal_I2C.h>
+#include <MQUnifiedsensor.h>
+#include <DHT.h>
+
+#define BOARD "ESP-32"
+#define MQPIN 36
+#define DHTPIN 4
+#define LAMPPIN 26
+#define FANPIN 25
+
+LiquidCrystal_I2C lcd(0x27, 16, 2);
+DHT dht(DHTPIN, 22);
+
+void setup(){
+  pinMode(MQPIN, INPUT);
+  pinMode(LAMPPIN, OUTPUT);
+  pinMode(FANPIN, OUTPUT);
+
+  digitalWrite(LAMPPIN, HIGH);
+  digitalWrite(FANPIN, HIGH);
+
+  Serial.begin(115200);
+
+  lcd.init();
+  lcd.backlight();
+
+  lcd.setCursor(0, 0);
+  lcd.print("Memuat....");
+
+  dht.begin();
+
+  delay(5000);
+}
+
+void loop(){
+  int kadarGas = analogRead(MQPIN);
+  int kadarGasPersen = map(kadarGas, 250, 1023, 0, 100);
+  
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("Kadar Gas : ");
+  lcd.setCursor(0,1);
+  lcd.print(String(kadarGas));
+
+  float suhu = dht.readTemperature();
+
+  delay(2000);
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("Suhu : ");
+  lcd.setCursor(0, 1);
+  lcd.print(String(suhu) + " C");
+
+  if (suhu <= 30) {
+    digitalWrite(LAMPPIN, LOW);
+  } else {
+    digitalWrite(LAMPPIN, HIGH);
+  }
+
+  if (suhu >= 40) {
+    digitalWrite(FANPIN, LOW);
+  } else {
+    digitalWrite(FANPIN, HIGH);
+  }
+
+  float kelembaban = dht.readHumidity();
+
+  delay(2000);
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("Kelembaban : ");
+  lcd.setCursor(0, 1);
+  lcd.print(String(kelembaban) + " %");
+
+  Serial.println("Kadar Gas : " + String(kadarGas));
+  Serial.println("Persen Kadar Gas : " + String(kadarGasPersen) + " %");
+  Serial.println("Suhu : " + String(suhu) + " C");
+  Serial.println("Kelembaban : " + String(kelembaban) + " %");
+
+  delay(2000);
+  lcd.clear();
+}
\ No newline at end of file