#ARDUINO UNO PINOUT GRAPHIC SOFTWARE#

These pins need to be declared in the display constructor part of the sketch. Here, RS is wired to the NanoвЂ™s pin 12, R/W to pin 11 and E to pin 13. Only 3 digital pins of the Arduino are required to get output on the display: pins supporting the functions RS, R/W and E. The u8g library written by Oliver Kraus (вЂOlikrausвЂ™) offers a selection of graphic functions, special characters and text fonts which makes the use of this kind of display extra attractive.ДЇigure 1: Wiring of a graphic 128Г—64 LCD display, in SPI mode. The screens are in vertical direction twice as big as 20Г—4 LCD displays so they offer good readability. This modest вЂpin requirementвЂ™ makes the ST7920 display attractive for use in Arduino projects where other pins need to be reserved for all kinds of peripheral devices and actions. In spite of the impressive 20 pins that decorate this board only three pins of an Arduino are essential to make the display work, that is: in SPI mode.

In this paper we discuss a very common type of 128Г—64 LCD display breakout based on the ST7920 controller. One of the solutions to display data collected with sensors attached to an Arduino microcontroller board is via a graphic 128Г—64 LCD display (Figure 1).Because the pixels are neatly arranged in 128 columns, 64 rows where every individual pixel is addressable these displays offer graphic capabilities where even images can be displayed (of course in monochrome). This display is used to present data collected with a Dallas DS18B20 temperature sensor and a DHT11 relative humidity sensor. Here we discuss the wiring of a ST7920 based 128Г—64 graphical 12864B LCD breakout display.

#ARDUINO UNO PINOUT GRAPHIC SOFTWARE#

The payoff is presentation with considerable flexibility thanks to the existence of built-in characters and, in software for the Arduino, an extensive u8g graphics library, i.e., the same library that supports display of graphics on OLED displays. These displays are more complicated to program than the вЂcommonвЂ™ 16Г—2 or 20Г—4 LCD displays that present two or four rows of fixed character positions. Graphic 128Г—64 LCD displays are based on (monochrome) LCD technology, yet they offer interesting graphical capabilities because every pixel is individually addressable. By Floris Wouterlood вЂ“ The Netherlands вЂ“ August 11, 2017

Arduino uno pinout graphic