Learn to build an RFID based attendance system using Arduino with step-by-step instructions, circuit diagrams, and complete code. This $35 DIY project replaces expensive commercial systems with ...

Welcome to the lcd-i2c-library repository! This library provides an interface to control an HD44780-based LCD via an I2C converter using the PCF8574 module. If you are working on an Arduino or AVR ...

Library Support: Utilizes existing Arduino libraries for I2C communication and LCD control, ensuring compatibility and ease of use. Example Projects: Explore a collection of example projects ...