This Arduino sketch demonstrates how to use an I2C-enabled LCD display with an Arduino board. The LiquidCrystal_I2C library is used to control the LCD, and the sketch also includes a function to ...

LiquidCrystal_I2C It is the reimplementation of the standard Arduino LCD library, configured to work with parallel HD44780 compatible LCDs, and interfaced via a Chinese PCF8574 I2C serial extender.

RP2040-0.42LCD, is a tiny Raspberry Pi RP2040 board with an equally tiny 0.42-inch display, and a Qwicc connector for expansion.