[1] Material Yang di Gunakan 1. Kabel Jumper (3 female to female dan 1 male to female) 2. ESP32 3, Larutan PH 10 4. Sensor PH [2] Code 1. Kalibrasi int pH_Value; float Voltage; void setup () { Serial . begin ( 9600 ); pinMode (pH_Value, INPUT); } void loop () { pH_Value = analogRead ( 34 ); Voltage = pH_Value * ( 3.3 / 4095.0 ); Serial . println (Voltage); delay ( 500 ); } 2. Test #include <Wire.h> #include <LiquidCrystal_I2C.h> // Inisialisasi LCD I2C (alamat umum 0x27, bisa 0x3F tergantung modul) LiquidCrystal_I2C lcd (0x 27 , 16 , 2 ); float calibration_value = 21.34 + 1.5 ; unsigned long int avgval; int buffer_arr [ 10 ], temp; float ph_act; // Tentukan pin analog untuk sensor pH #define PH_SENSOR_PIN 34 // GPIO34 contoh, bisa ganti ke pin analog lain void setup () { Wire . begin (); Serial . begin ( 115200 ); // Baudrate umum ESP32 lcd . i...