The MQ2 Gas Sensor Circuit with Arduino is a low-cost sensor. It can catch bad gas in air very quickly. When we connect it with Arduino, we make small gas alarm system. It reads gas level, show number on LCD and buzzer make sound when gas goes high. This circuit is very simple to make […]
Gas Alarm Circuit using MQ Sensor and Buzzer
A Gas Alarm Circuit using MQ Sensor and Buzzer gives quick warning when gas level becomes dangerous. MQ Sensor senses gas leak fast and buzzer makes loud sound when gas is found. Circuit runs on 5V and uses very few parts. It is good for low-cost safety at home, kitchen and workplace. Circuit Working: Parts […]
Arduino IR LED Transmitter Circuit
This project sends IR signals using Arduino. Arduino drives one IR LED. We press button on serial monitor or code trigger. IR LED sends coded light signal. This Arduino IR LED Transmitter Circuit works like a small remote controller. Circuit is easy and simple. Arduino Coding: Coding Explanation: Circuit Working: Parts List: Component Name Value […]
Arduino IR Remote Control RGB LED Circuit
This Arduino project changes RGB LED color with IR remote. Press one button and LED changes fast. No touch, no switch, only remote use. IR sensor reads signal and Arduino drives LED. It feels like small smart light. This Arduino IR Remote Control RGB LED Circuit is easy to build. Arduino Coding: Code Explanation: Circuit […]
Arduino LED Dimmer Circuit using IR Remote
This project for Arduino LED Dimmer Circuit using IR Remote make simple LED look like smart light. LED listens to IR remote. IR receiver reads remote signal. Arduino change LED brightness using PWM. With Arduino and few parts, we can change brightness sitting on sofa. It feel like small home-automation system. This project is good […]
IR Transmitter and Receiver Circuit using 555 and 4017 IC
This project is IR Transmitter and Receiver Circuit using 555 and 4017 IC. It works with infrared light. It has two parts transmitter and receiver. Transmitter sends IR signal. Receiver catches signal and turns relay ON or OFF. It can control small home device without wire. Circuit Working for IR Transmitter Circuit : Parts List […]