Monochrome 20x04 LC display (20 characters on 4 lines); black font, yellow background lighting additionally 4 freely usable buttons ; Connected to GPIO 4, GPIO 10, GPIO 9, GPIO 23 exact contrast setting by means of multi-turn potentiometer directly pluggable on Raspberry Pi header compatible with all Raspberry Pi versions, - HD44780 compatible LCD controller [industry standard] huge dimensions: 40mm x 97mm display size https://elecena.pl/product/28015739/joy-it-lcd-display-20x4-monochrome-display 2025-03-12 https://elecena.pl/product/28015739/joy-it-lcd-display-20x4-monochrome-display 2025-05-22 https://elecena.pl/product/28015739/joy-it-lcd-display-20x4-monochrome-display 2025-09-17 https://elecena.pl/product/28015739/joy-it-lcd-display-20x4-monochrome-display 2026-01-29