Example Code of Refreshing Color for Arduino

Introduction

The function of the program: realize the refreshing of the background color of the 2.2”screen and the switching of background color among red, white and black; there are 19 common defined color in the library, and users can also customize 4-bit hexadecimal code or decimal color code (0~65535) to alter the background color of the screen.

Sample Code

/*
 * file DFRobot_ST7687S_Latch.ino
 *
 * @ https://github.com/DFRobot/DFRobot_ST7687S
 *
 * connect with your board (please reference board compatibility)
 * 
 * controler (uno)        DFRobot 2.2 inch tft lcd display
 * SPI_SCK         ---->  SPI_SCL
 * SPI_MOSI        ---->  SPI_MOSI
 * 3               ---->  cs
 * 5               ---->  rs
 * 6               ---->  wr
 * 7               ---->  lck
 * 
 * show many graphics on board
 *
 * Copyright   [DFRobot](https://www.dfrobot.com), 2016
 * Copyright   GNU Lesser General Public License
 *
 * version  V1.0
 * date  2017-12-7
 */

#include "DFRobot_ST7687S_Latch.h"

#ifdef __AVR__
uint8_t pin_cs = 3, pin_rs = 5, pin_wr = 6, pin_lck = 7;
#else
uint8_t pin_cs = D3, pin_rs = D5, pin_wr = D6, pin_lck = D7;
#endif

DFRobot_ST7687S_Latch tft(pin_cs, pin_rs, pin_wr, pin_lck);

void setup(void)
{
  Serial.begin(115200);
  tft.begin();
}

void loop(void)
{
  delay(1000);
  tft.fillScreen(DISPLAY_RED);  //fill screen with color
  delay(1000);
  tft.fillScreen(DISPLAY_WHITE);
  delay(1000);
  tft.fillScreen(DISPLAY_BLACK);
  delay(1000);
  tft.fillScreen(65535);//User-defined color code 65535:white
  delay(1000);
  tft.fillScreen(0x0000);//User-defined color code 0x0000:black
}

Result