This circuit uses an Arduino UNO to control an LED and display its status and a switch status on an HD44780 LCD. 1.LED: LED: Connect the anode to pin 13 through a 220Ω resistor and the cathode to GND.

Arduino library for GC9A01 240×240 SPI TFT displays—supports hardware/software SPI, rotation, scroll, bitmaps, fonts, power modes, and advanced graphics.

Learn how to use reflective LCD display with Arduino UNO. The display does not have any backlight, but it´s nicely readable on the direct sunlight. It uses the chip ST7302 and has the resolution of ...