Circuit Diagram for Arduino Keypad Door Lock. The Complete circuit diagram for our Arduino based Digital Keypad Door Lock project is shown below. First of all, we start from the brain of this project ...

A RFID-based locking system using an ESP8266 microcontroller, MFRC522 RFID reader, LCD display, and an electromagnetic lock. This project allows for admin-controlled user management, access logging, ...

Electronic and Arduino enthusiasts searching for an Arduino project to keep ... The DIY biometric lock is also equipped with three push buttons and a 16×2 LCD display. “This is a security door ...

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There are four outputs from the Arduino, three for RGB LED, which indicates the Status of Door Lock, and one output goes to TIP31A Transistor, which opens the Electric Door lock, by giving it 12v ...

If the Bluetooth reads the wrong fingerprint, then it automatically turns the servo to lock position. (Refer Fig .3) Fig 3. Arduino Code Checking Device ID. App Making. We can make the app in two ...

To celebrate its long-term success, we’ve collected 12 of the coolest, most revolutionary, and most entertaining Arduino projects currently in existence. Prepare to be wowed — and then inspired!

Seven-segment displays and monochrome LCDs are fine for most projects, but some things simply look better in color. [John] over at the Little Bird Electronics blog recently wrote up a tutorial demo… ...