TFT Screen

TFT Screen with Arduino

hello guys thank you for returning back again and i hope you enjoy today's article

today we will connect a TFT Screen with Arduino and undrestand how we can write a message or changing the background color .

for that we need to know some basics as the TFT pins and how we can connect it to arduino . Also we will use the TFT library wich give us a specific wiring which it depends on the type of our board .

TFT

this figure show us the different function of each pin of our TFT screen 

Connecting TFT Screen

the TFT library has a specific pins to connect with our screen. we ll take the arduino UNO and MEGA for example.

    with Arduino UNO 

+5V:	+5V
MISO:	pin 12
SCK:	pin 13
MOSI:	pin 11
LCD CS:	pin 10
SD CS:	pin 4
D/C:	pin 9
RESET:	pin 8
BL:	+5V
GND:	GND

with Arduino MEGA

+5V:	+5V
MISO:	50 on Mega 2560 (Miso on ADK)
SCK:	52 on Mega 2560 (Sck on ADK)
MOSI:	51 on Mega 2560 (Mosi on ADK)
LCD CS:	pin 10
SD CS:	pin 4
D/C:	pin 9
RESET:	pin 8
BL:	+5V
GND:	GND

 we ll today use the TFT to test if a device is detected or not. 

Code

#include <TFT.h>  // Arduino LCD library

#include <SPI.h>

#define cs   10

#define dc   9

#define rst  8

int dev=2;

int Read;

String str1 = "detected";

String str2 = "not detected";

TFT TFTscreen = TFT(cs, dc, rst);

char strc1[13];

void setup() {

  pinMode(dev,INPUT);

  TFTscreen.begin();

  TFTscreen.background(255, 0, 0);

  TFTscreen.stroke(0, 0, 0);

  TFTscreen.setTextSize(2);

  TFTscreen.text("Device \n ", 0, 0);

  TFTscreen.setTextSize(2);

}

void loop() {

  Read=digitalRead(dev);

  

if (Read==HIGH) {

  str1.toCharArray(strc1, 13);

  TFTscreen.stroke(0, 0, 0);

  TFTscreen.text(strc1, 0, 20);

}

else {

  str2.toCharArray(strc1, 13);

  TFTscreen.stroke(0, 0, 0);

  TFTscreen.text(strc1, 0, 20);

}

  delay(1000);

  TFTscreen.stroke(255,0,0);

  TFTscreen.text(strc1, 0, 20);

}