The Smart Door Alert System is a home security project built with Arduino that uses an ultrasonic sensor to detect how close someone is to your door or window. It uses LEDs, a buzzer, and a flashing ...

About An Arduino-based RFID door lock system featuring an MFRC522 reader, servo motor, LEDs, and a buzzer for secure and customizable access control.

Learn how to build an RFID door lock system using Arduino for secure and smart access control. This step-by-step guide covers circuit connections, coding, and hardware setup to create an automated ...

When reed switch is opened, pin 2 of Arduino goes high with the help of the pull-up resistor R2, and the alert signal is available through the piezo-speaker PZ1 (not an active piezo-buzzer). At the ...

By using open-source Arduino tools, security researchers are exposing security gaps in door-lock systems used by millions of hotels.

Arduino announced a new low-code Internet of Things application development platform at CES 2020 in Las Vegas. It also introduced the low-power Arduino Portenta H7 module, a new family of Portenta ...

Many people would be tempted to write a really simple script that would just open the door and connect without any real thought about security. After all, this is a one-off obscure garage door opener.

[Flute Systems] has released an open source DIY game buzzer system based on the Arduino that will help instantly elevate your game. Certainly beats just yelling across the room.