Month: May 2025
Build a Smart Door Lock with Arduino Keypad Servo Motor & Mechanical Lock
As everyone is aware, security is a top priority. The number of theft cases is rising sharply also. Since everyone is worried about the safety of their homes and lockers, a door lock system that uses a password can help. Only after entering the right password will the door open. Objective This project’s major goal is to switch out the conventional door lock system, which uses a mechanical lock and key mechanism, with a password-based system. Minimal power usage Easy to understand and apply Economical Component Required Hardware Arduino UNO: The Arduino Uno-board is a 8 bit-microcontroller. It has I/0 pins including both…
KY-022 Infrared Receiver Module
The KY-022 Infrared Receiver module reacts to 38kHz IR light. It can be used to receive commands from IR remote controllers from TVs, stereos and…
KY-033 Line Tracking Sensor Module
The KY-033 Line Tracking module is an infrared sensor that detects whether the surface in front of it is reflective or opaque. Sensitivity to ambient…
KY-028 Digital Temperature Sensor Module
The KY-028 Digital Temperature Sensor measures temperature changes based on thermistor resistance. This module has both digital and analog outputs, there’s a potentiometer to adjust…
KY-034 Automatic Flashing Color LED
The KY-034 features a 7 color LED that flashes through a sequence of colors, creating a multicolored pattern of flashing light. The sequence is predefined…