Whenever we need to connect any AC Appliance in our embedded circuits, we use a Relay. So in this arduino relay control tutorial we will simply learn How to interface a Relay with Arduino. Here we are ...

In this circuit, we are making a Light Sensor using LDR with Arduino to control a bulb/CFL as per light condition ... Here, we are defining the Pins for Relay, LED and LDR. #define relay 10 int LED = ...

In this project, we will see the Automatic Room Lights using Arduino and PIR Sensor, where the lights in the room will automatically turn ON and OFF by detecting the presence of a human. Such ...

The concept of automation is getting popularity among people these days and many of them control their lighting ... which means when the relay is switched off the circuit will be broken. The relay ...

Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...

In this project, we will see the Automatic Room Lights using Arduino and PIR Sensor, where the lights in the room will automatically turn ON and OFF by detecting the presence of a human. Such ...

The circuit diagram of the Arduino-based night security light is shown in Fig. 2. It is built around an Arduino Uno board (board1), PIR sensor connected across CON2, two BC547 npn transistors (T1, T2) ...

The circuit of Arduino-based shadow alarm is shown in Fig. 1. It consists of an Arduino board, power supply, light-dependent resistor (LDR) sensor, buzzer, relay driver and a few ... in the source ...

In this quick Arduino tutorial I will explain how you can control a relay using the Arduino ... up the Arduino board and the transistor + relay. The load uses its own power supply, for instance if you ...