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Hundreds of projects from beginner to advanced — schematics, code, and videos.
Project that reads the serial number in Serial Monitor when the card or keychain is approached with RC522 RFID module. Teaches the basics of SPI communication and RFID reading.
Authentication project that gives access permission with green or red LED by comparing the card ID read with the RC522 RFID module with the registered ID.
Basic project that reads the key pressed from the 3x4 keypad keypad and displays it on the Serial Monitor. Teaches the use of keypad library and matrix keypad.
Basic project that reads the key pressed from a 4x4 keypad keypad and displays it on the Serial Monitor. Teaches 4-column extended keypad configuration.
Security project that opens the door with servo if it is correct by entering a password with a 4x4 keypad and turns on a red LED if it is wrong. Teaches password comparison and servo-LCD-keypad integr
A stylish automation project with a bidirectional HC-SR04 distance sensor that alternately lights on and off in the direction of movement.
Autonomous plant irrigation system that works 24/7 with two 18650 batteries and LM2596 regulator without tiring Arduino. It automatically manages the water motor by continuously measuring soil moistur
Smart Electronic Safe is an Arduino based password protected security system. It opens and closes the servo motor controlled lock mechanism with a 4-digit password entered via the 4x4 keypad and trans
