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 ...

jm_PCF8574_blink.ino Blinking backlight of a LCD module. This example blinks the backlight of a LCM2004A I2C LCD module. The LCM2004A module is commonly interfaced for I2C with a PCF8574A or optionaly ...

This sketch uses timed LCD text to create a visual poem or micro-drama, making it ideal for personal projects, art installations, or emotional tech demos. - Releases · ...

The purpose of this research is the design of the water clarity monitoring system in the aquarium can detect the level of clarity/turbidity of water at a certain level, using Arduino Uno ...

Browse 500+ Arduino projects with downloadable code and circuit diagrams. Complete tutorials for beginners and advanced makers.