this is my first project. And i verry bad at English.
So i hope everyone sympathized.
watch the videos to understand the its operating principle.
Step 1: Step1 Getting Hardware
1 Arduino uno
2 Module Bluetooth HC05
3. Module MQ2
4.Module relay 2 Channel
Step 2: Step 2: Building a Circuit and Connecting to Arduino
HC05 Tx - pin 10 Arduino
HC05 Rx - pin 11 Arduino
MQ2 Ao - Pin A0 Arduino
Module relay IN1- Pin 12 Arduino
Module relay IN2- Pin 13 Arduino
red wire is VCC 5v
Black wire is GND 0v
Step 3: Step 3: Programming the Arduino
this is my code:
Step 4: Step 4: Get Android Project, and Install App
down load and copy the app-release to your android phone and duoble click to it then install.
Step 5: Step 5: Testing
Thank you !