This is a project which adapts code from another user to allow usage of the PCF8574 I2C lcd backpack for either 20x4 or 16x2 lcd screens. - RPI-PICO-I2C-LCD/README.md at main · T-622/RPI-PICO-I2C-LCD ...

Connect the display to the Raspberry Pi according to the diagram below. The colors of the cables may vary depending on the supplier and batch. Focus on the function and pin number, not the color.

Posted in Raspberry Pi Tagged character lcd, hd44780, lcd, pcf8574, RPi ← Building A Pick And Place With 3D Printed Parts Resurrecting A PS3 Controller That Won’t Charge → ...