Arduino code: #include <LiquidCrystal.h> #define gas_Pin 7 // initialize the library by associating any needed LCD interface p...

MQ4 gas sensor Arduino code: #include <LiquidCrystal.h> #define gas_Pin 7 // initialize the library by associating any needed LC...

MQ3 ALCOHOL SENSOR Arduino code: #include <LiquidCrystal.h> #define gas_Pin 7 // initialize the library by associating any ...

Arduino coding: #include<Keypad.h> const byte ROWS = 4; //four rows const byte COLS = 4; //four columns char keys[ROWS][COLS...

Embedded systems basics: Embedded systems step by step video guide -using PROTEUS ISIS professional and Arduino IDE software here I am...

Embedded systems basics: Embedded systems step by step video guide -using PROTEUS ISIS professional and Arduino IDE software here I am g...

Arduino coding: #include <Keypad.h> const byte ROWS = 4; //four rows const byte COLS = 4; //four columns char keys[ROWS][C...