Control led con Arduino uno R3 y pantalla touch de 2.0" Driver: S6D1121
Este es el anuncio del dispositivo:
https://es.aliexpress.com/item/2-0-3-3V-TFT-LCD-Touch-Screen-Breakout-Board-With-Touch-Pen-For-Arduino/32780151979.html?spm=2114.13010608.0.0.k2mfBQ
Con el siguiente programa arduino controlamos la pantalla de tft touch de 2.0", comprada en aliexpress por 3€.
Controlaremos por medio de un botón en pantalla un led usando el pin 5 de la placa arduino y un sensor DHT22 temperatura/humedad. Para las pruebas use el arduino uno R3:
https://es.aliexpress.com/item/2-0-3-3V-TFT-LCD-Touch-Screen-Breakout-Board-With-Touch-Pen-For-Arduino/32780151979.html?spm=2114.13010608.0.0.k2mfBQ
Con el siguiente programa arduino controlamos la pantalla de tft touch de 2.0", comprada en aliexpress por 3€.
Controlaremos por medio de un botón en pantalla un led usando el pin 5 de la placa arduino y un sensor DHT22 temperatura/humedad. Para las pruebas use el arduino uno R3:
CODIGO ARDUINO :
/*
* Arduino 2″ TFT Touch Display and dht22 humidity and trmparature sensor.
*
* Created by surfero
* surfero.blogspot.com
*
*/
#include
#include
#include
#define DCS 6 // Chip select pin of touch screen
#define DCLK A1 // Clock pin of touch screen
#define DIN A2 // Data in pin of touch screen
#define DOUT 7 // Data out pin of touch screen
#define YAXIS 0 //Axis of the TFT sceen
#define XAXIS 1
#define DHTPIN 3 // Temp and humidity sensor
#define DHTTYPE DHT22 //Sensor type
#define PRESSDELAY 200 //Delay between touch screen readings
Touch_AS Touch(DCS, DCLK, DIN, DOUT); // Initialize touchscreen
UTFT myGLCD(ITDB24E_8,A2,A1,A3,A0); // Initialize display
DHT dht(DHTPIN, DHTTYPE); // Initialize temp and humidity sensor
extern uint8_t BigFont[]; //Setting fonts for the LCD http://www.rinkydinkelectronics.com/r_fonts.php
extern uint8_t SmallFont[];
extern uint8_t SevenSegNumFont[];
unsigned long temparatureMillis = 0; //Store the last temp reading time
int x, y; //Store touch cordinates
String tempUnit = "C"; //Temperature measurement unit
unsigned long millisNow =0; //Store touch time to ignore repeated touch signals
void setup()
{
// Initial setup
Serial.begin(9600);
myGLCD.InitLCD();
myGLCD.clrScr();
myGLCD.setFont(BigFont);
myGLCD.setBackColor(0, 0, 255);
drawScreen(0); //Call draw screen function
dht.begin(); //Sratr the temp and humidity sensor
}
void loop()
{
if (Touch.Pressed()){ //Check to see if the touch screen is pressed
x=Touch.GetCoord(XAXIS); //Get X cord
y=Touch.GetCoord(YAXIS); //Get Y cord
if(x>105 && x<225 amp="" y="">95 && y<130 span="">
//Skip touchscreen readings for the next 500ms(set in PRESSDELAY).
//This is used because whenever the sceen in touched it sends the cordinates continously.
//We only need to toggle the unit once per touch.
if(millis()-millisNow >= PRESSDELAY){
millisNow = millis();
if(tempUnit == "C"){ //Toggle temparature unit
tempUnit = "F";
}
else if(tempUnit == "F"){
tempUnit = "C";
}
readTemparature();
}
}
}
//Check temparature every 2000ms (2 seconds)
if(millis() - temparatureMillis >= 2000){
temparatureMillis = millis();
readTemparature();
Serial.println(temparatureMillis);
}
}
//Function to read temparature and humidity
void readTemparature(){
float h = dht.readHumidity(); // Read humidity
float t = 0;
if(tempUnit == "C"){
t = dht.readTemperature(); // Read temperature in C
}
else{
t = dht.readTemperature(true); // Read temperature in F
}
// Check if any reads failed and exit early (to try again).
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
//Serial.print("Temp: ");
//Serial.print(t);
updateTemp(t, tempUnit);
updateHumidity(h);
}
//Function to draw screens. Parameter will set which sreen to draw (When more than one screen)
//Documentation for the screen library- http://www.rinkydinkelectronics.com/resource/UTFT/UTFT.pdf
void drawScreen(int screen){
//0= home screen (More screens will be added later)
if(screen == 0){
myGLCD.setBackColor(0,0,0);
myGLCD.setColor(255,255,255);
myGLCD.setFont(BigFont);
myGLCD.print("Data from sensor", CENTER, 30);
myGLCD.setColor(255, 0, 0);
myGLCD.drawLine(0,60,319,60);
myGLCD.setBackColor(0, 0, 0);
myGLCD.setColor(255, 255, 255);
myGLCD.setFont(BigFont);
myGLCD.print("Temparature", CENTER, 70);
myGLCD.setColor(255, 255, 255);
myGLCD.setFont(BigFont);
myGLCD.print("Humidity", CENTER, 150);
}
}
//Function to update temparature
void updateTemp(float val, String unit){
myGLCD.setColor(255,255,255);
myGLCD.drawRoundRect (105, 95, 225, 130);
myGLCD.setColor(0,255,0);
myGLCD.setFont(BigFont);
myGLCD.printNumF(val, 2, CENTER, 100);
myGLCD.print(unit, 205, 100);
}
//Function to update humidity
void updateHumidity(float val){
myGLCD.setColor(255,255,255);
myGLCD.drawRoundRect (105, 175, 225, 210);
myGLCD.setColor(0,255,0);
myGLCD.setFont(BigFont);
myGLCD.printNumF(val, 2, CENTER, 178);
myGLCD.print("%", 205, 178);
}
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