ESP32 I2C LCD in Arduino IDE | ESP8266 Compatible PCF8574 Arduino
Libreria liquidcrystal_I2C
GitHub - mrkaleArduinoLib/LiquidCrystal_I2C: A reimplementation of the standard Arduino LCD library, configured to work with parallel HD44780 compatible LCDs, and interfaced via a Chinese PCF8574 I2C serial extender.
Arduino LCD | Arduino playground
Ejemplo de Arduino y LCD con el módulo I2C - Electrogeek