![LCD03 – Integrating a liquid crystal display LCD and a keypad on Arduino via I2C – Meccanismo Complesso LCD03 – Integrating a liquid crystal display LCD and a keypad on Arduino via I2C – Meccanismo Complesso](https://www.meccanismocomplesso.org/wp-content/uploads/2017/01/LCD03-a-simple-sketch-of-the-library-on-Arduino-IDE.jpg)
LCD03 – Integrating a liquid crystal display LCD and a keypad on Arduino via I2C – Meccanismo Complesso
![LCD screen for Arduino UNO onlys shows a row of white boxes on top row - Project Guidance - Arduino Forum LCD screen for Arduino UNO onlys shows a row of white boxes on top row - Project Guidance - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/1/b/4/1b49a5d48ef1fa3c8d73e5a40cc98a3ac6077075_2_690x403.jpeg)
LCD screen for Arduino UNO onlys shows a row of white boxes on top row - Project Guidance - Arduino Forum
Should be easy: true or HIGH seems to be not working for LCD screen - Programming Questions - Arduino Forum
![How to use 4x4 Keypad with Arduino Uno And print on LCD 16x2. Tinkercad Arduino Simulation With Code - YouTube How to use 4x4 Keypad with Arduino Uno And print on LCD 16x2. Tinkercad Arduino Simulation With Code - YouTube](https://i.ytimg.com/vi/sIq8ho75Qe0/maxresdefault.jpg)