Arduino Uno Project: Mini Gas Alarm with MQ-5 Sensor

Описание: This project uses an MQ gas sensor and a buzzer with an Arduino Uno to create a simple gas leak detection alarm. When the gas concentration rises above a set threshold, the buzzer starts beeping to warn you.

MQ module:
VCC --- Arduino 5V
GND --- Arduino GND
AO --- Arduino A0

Buzzer:
+ve (Long leg) --- Arduino D8
ve (short leg) -- Arduino GND