This circuit triggers the Buzzer when Smoke level becomes higher than 1000 ppm, this threshold value can be changed in the Code according to the requirement. This circuit mainly uses MQ2 Smoke/Gas ...

Now as we know the main idea behind the working of each component. Let us assemble all the components and make a working circuit. Insert the Arduino Nano and MQ-2 smoke sensor in the breadboard. Power ...

Arduino Code for Interfacing MQ-5 Gas Sensor Module. The Arduino MQ-5 gas sensor module's coding is straightforward. We're simply reading the Sensor's analog data and turning the LED and Buzzer ON or ...

I will attach all the schematics and the PCBs design for the project. I will start by doing the PCB design for the smoke sensor detector. Components: Arduino UNO; Power Supply; Smoke Sensor (MQ2) ...

Arduino Uno or any compatible Arduino board Flame Sensor MQ-2 Gas Sensor (Smoke sensor) Buzzer LED (for visual indication) Resistors (for LED and sensor circuits) Breadboard and jumper wires Power ...

It really is a hands-on way to learn electronics and programming while building a useful gadget. Get your Arduino board and gas sensor to start creating your smoke detector today. Write a code for ...

Speaker LS1 produces the sound alarm to indicate the presence of smoke near the sensor. The circuit’s working is simple. Normally, the sensor output is low when there is no smoke present. However, ...