I am creating buttons on my TFT for relays. I made boxes with the labeled relay uses, along with code if the buttons are touched. It is essentially a simple button, that changes a digital pin to HIGH or LOW depending on touch.
My code essentially follows this rule:
if (p.z > ts.pressureThreshhold) { //If touched
if(p.x >= 0 && p.x < 70) { //Within these x-values
if(p.y >= 196 && p.y < 226) //Within these y-values
{ if (Pin == HIGH) {
digitalWrite(Pin, LOW); //set the Relay OFF
}
else {
digitalWrite(Pin, HIGH);// set the Relay ON
}
}
}The part I want you to look at is void buttons(). It essentially encompasses the area of the code where if the rectangle is touched, something should happen.
#include <stdint.h>
#include <TouchScreen.h>
#include <TFT.h>
#include "Adafruit_MAX31855.h"
#include <cstddef.h>
#define YP A2 // must be an analog pin, use "An" notation!
#define XM A1 // must be an analog pin, use "An" notation!
#define YM 54 // can be a digital pin, this is A0
#define XP 57 // can be a digital pin, this is A3
#define TS_MINX 140
#define TS_MAXX 900
#define TS_MINY 120
#define TS_MAXY 940
int Pump1Pin = 31; //First Relay Pin
int Pump2Pin = 33;
int FanPin = 35;
int ReturnPin = 37;
int SkimmerPin = 39;
int Halide1Pin = 41;
int Halide2Pin = 43;
int ActinicPin = 45;
int Pump1State;
int Pump2State;
int FansState;
int ReturnState;
int SkimmerState;
int HalideState;
int ActinicState;
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300); //init TouchScreen port pins
void setup()
{
Tft.init(); //init TFT library
Serial.begin(38400);
pinMode(Pump1Pin, OUTPUT);
pinMode(Pump2Pin, OUTPUT);
pinMode(FanPin, OUTPUT);
pinMode(ReturnPin, OUTPUT);
pinMode(SkimmerPin, OUTPUT);
pinMode(Halide1Pin, OUTPUT);
pinMode(Halide2Pin, OUTPUT);
pinMode(ActinicPin, OUTPUT);
drawScreen();
}
void loop()
{
buttons();
// Print Char to TFT //
Tft.fillRectangle(200,60,50,15,BLACK); // Clear old text
Tft.fillRectangle(200,120,60,15,BLACK); // Clear old text
Tft.fillRectangle(200,150,60,15,BLACK); // Clear old text
Tft.fillRectangle(200,180,60,15,BLACK); // Clear old text
delay(1000); // delay to read screen
}
// Draw Screen Function //
// Draw all the text and objects that will not change //
void drawScreen(){
Tft.drawRectangle(0, 3, 238,30,BLUE); // HEADER TITLE
Tft.drawString("Display Data",20,15,2,WHITE); // header name
Tft.drawString("Hi",140,40,1,WHITE);
Tft.drawString("Low",155,40,1,WHITE);
Tft.drawString("Current",180,40,1,WHITE);
Tft.drawString("Seconds:",2,60,2,CYAN);
Tft.drawString("Temp",2,90,2,WHITE);
Tft.drawString("Internal:",20,120,1,WHITE);
Tft.drawString("External:",20,150,1,WHITE);
Tft.drawString("pH:",2,170,2,WHITE);
Tft.drawRectangle(0, 196, 70, 30,BLUE);
Tft.drawString("Pump 1", 15, 208, 1, WHITE);
Tft.drawRectangle(80, 196, 70, 30, BLUE);
Tft.drawString("Pump 2", 95 , 208 , 1, WHITE);
Tft.drawRectangle(160, 196, 70, 30, BLUE);
Tft.drawString("Fans", 175, 208, 1, WHITE);
Tft.drawRectangle(0, 236, 110,30,BLUE);
Tft.drawString("Return Pump", 15, 248,1,WHITE);
Tft.drawRectangle(120, 236, 110, 30, BLUE);
Tft.drawString("Skimmer", 150, 248, 1, WHITE);
Tft.drawRectangle(0, 276, 110, 30, BLUE);
Tft.drawString("Halides", 25, 286, 1, WHITE);
Tft.drawRectangle(120, 276, 110, 30, BLUE);
Tft.drawString("Actnitcs", 140, 286, 1, WHITE);
}
void buttons(){
Point p = ts.getPoint();
p.x = map(p.x, TS_MINX, TS_MAXX, 240, 0);
p.y = map(p.y, TS_MINY, TS_MAXY, 320, 0);
if (p.z > ts.pressureThreshhold) {
if(p.x >= 0 && p.x < 70) {
if(p.y >= 196 && p.y < 226)
{
if (Pump1State == HIGH) {
digitalWrite(Pump1Pin, LOW); //set the Relay ON
Pump1State = 0; }
else {
digitalWrite(Pump1Pin, HIGH);// set the Relay OFF
Pump1State = 1;
}
}
}///////////////////////////////////////////////////////////////////////////For Pump 1
else if(p.x >= 80 && p.x < 150) {
if(p.y >= 196 && p.y < 226)
{
if (Pump2State == HIGH) {
digitalWrite(Pump2Pin, LOW); //set the Relay OFF
Pump2State = 0; }
else {
digitalWrite(Pump2Pin, HIGH);// set the Relay ON
Pump2State = 1;
}
}
}//For Pump 2
else if(p.x >= 160 && p.x < 230) {
if(p.y >= 196 && p.y < 226)
{
if (FansState == HIGH) {
digitalWrite(FanPin, LOW); //set the Relay OFF
FansState = 0; }
else {
digitalWrite(FanPin, HIGH);// set the Relay ON
FansState = 1;
}
}
}//For Fans
else if(p.x >= 0 && p.x < 110) {
if(p.y >= 236 && p.y < 266)
{
if (ReturnState == HIGH) {
digitalWrite(ReturnPin, LOW); //set the Relay OFF
ReturnState = 0; }
else {
digitalWrite(ReturnPin, HIGH);// set the Relay ON
ReturnState = 1;
}
} //for return pump
else {
if (HalideState == HIGH) {
digitalWrite(Halide1Pin, LOW); //set the Relay OFF
digitalWrite(Halide2Pin, LOW);
HalideState = 0; }
else {
digitalWrite(Halide1Pin, HIGH);// set the Relay ON
digitalWrite(Halide2Pin, HIGH);
HalideState = 1;
}
}//for halides
}//if touched in these x-values
else if(p.x >= 120 && p.x < 150) {
if(p.y >= 236 && p.y < 266) //
{
if (SkimmerState == HIGH) {
digitalWrite(SkimmerPin, LOW); //set the Relay OFF
SkimmerState = 0; }
else {
digitalWrite(SkimmerPin, HIGH);// set the Relay ON
SkimmerState = 1;
}
} //skimmer
else // Actinic
{
if (ActinicPin == HIGH) {
digitalWrite(ActinicPin, LOW); //set the Relay OFF
ActinicState = 0; }
else {
digitalWrite(ActinicPin, HIGH);// set the Relay ON
ActinicState = 1;
}
}
} //For Skimmer
}//Touch
}When I run the code it really doesn’t work, except for the very first If statement. I do not know what the problem is. I think I have all my parentheses correct. Let me know what you think.