Tag: how to make passcode door lock

How to Make 4-Digit Passcode Door Lock

How to Make 4-Digit Passcode Door Lock

Making a 4-digit passcode door lock using an encoder and a TM1637 module is straightforward with the right components and a little bit of programming knowledge. The encoder converts the input from a numerical keypad into a unique code that operates the door lock, while the TM1637 module displays the entered code on a 4-digit 7-segment display.