Here is the circuit of an Arduino-based Panic Alarm! The wiring is very simple so that even a novice can construct this interesting circuit without any difficulty. Arduino is a family of ...

When the button is pressed the Arduino board will put pin 2 in HIGH state, meaning 5V on pin 2. This voltage is used to drive the transistor that will switch ON the relay and the load (in our case the ...

Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...

The relay module will need 5V from Arduino to power up and will get input from four different digital pins of the Arduino. Now let’s connect the relay module to your home appliance. Take the positive ...

Temperature Controlled Fan using Arduino Code Explanation The complete Arduino code for Temperature controlled fan is given at the bottom of this page. You can also get the code from CircuitDigest ...

Arduino program to handle relays and control them using switches. Single pair of relay and switch are configured in single line. Buttons has debouncing and support for mono- and bi-stable switches.

All we need to do is swipe or place an authorized RFID card in front of the RFID reader. Here, Arduino handles data processing activities to decide whether the RFID card is valid or not. If the card ...

Analog Pins The Arduino sketch turns the relay on/off using one of the Arduino device's Analog Output pins. Set the sketch's outputPin constant to the Analog pin designation for your hardware ...