Liquid Crystal (LCD) displays with 2 lines of 16 characters (model 1602) and 4 lines of 20 characters (model 2004) are inexpensive but versatile and fun displays to add to a micro-controller. Versions ...

an LCD (Liquid Crystal Display) setup using I2C with three different microcontroller boards: the NodeMCU, STM32F401RE, and the classic Arduino UNO! I am pleased to present what I have been working on ...

The protocol is supported on all Arduino boards, including the latest Arduino Nano Every model. The I2C protocol only requires two wires to connect external devices.