This project contains a collection of beginner-friendly Arduino circuits simulated using Tinkercad Circuits ... DIY Calculator using a 4x4 Keypad and 16x2 LCD Display A simple calculator that takes ...

This is a simple and practical implementation of an RFID-based attendance system using Arduino. It uses the MFRC522 RFID module ... the system marks the user as "Present" and displays a message on a ...