If you press a button on the pad, the Arduino should print a message to the console and toggle the lock output state. Once your buttons are tested, you’ll probably want to try out your LEDs.

Circuit Diagram for Solenoid Door Lock using Arduino is given below. Connections between Arduino and RFID are given in the table below. The positive pin of the buzzer is connected to digital pin 4 of ...

Today, I’m going to use this sensor to make a prototype of the biometric lock at just Rs 850. First of all, we will create a program in Arduino IDE and upload it on the Arduino development board. This ...

The button states could easily be read by using an Arduino’s analog input. A Pro Mini model was chosen for its small size as it could be housed in the radio compartment of the dash. The next ...

You can read the state of a button using Arduino and a few lines of code. The actual state is shown in the Serial Monitor window as 0 or 1, 0 meaning the button is not pressed and 1 that the button is ...

This Door Lock system also has a Master RFID card to add the new RFID cards to unlock the lock. When we scan the Master RFID card, Arduino goes into “Programmable Mode” and RGB LED starts to blink, ...