So i think i have managed to sort things out to get my project on the right tract......
I uploaded the TouchScreen_Calibr_native example and changed
uint16_t readID(void) {
uint16_t ID = tft.readID();
if (ID == 0xD3D3) ID = 0x9486;
return ID;
To
if (ID == 0xC4C4) ID = 0x9338;
and this allowed me to calibrate the screen and get the settings from the serial monitor
*** COPY-PASTE from Serial Terminal:
const int XP=7,XM=A1,YP=A2,YM=6; //240x320 ID=0x9338
const int TS_LEFT=916,TS_RT=136,TS_TOP=132,TS_BOT=927;
Then i was able to put these settings into my Sketch
#include <TouchScreen.h>
#include <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
#include <max6675.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include "icon.h"
// Pinouts
#define fan 1
#define relay 0
#define buzzer 11
#define thermoCS 10
#define thermoDO 12
#define thermoCLK 13
#define oneWireBus A5
// Variables
int temp = 0;
int temp1 = 0;
unsigned int preHeat = 120;
unsigned int reflow = 180;
unsigned int coolDown = 50;
unsigned int timer = 60;
unsigned int mm = 88;
unsigned int ss = 88;
bool reflowing;
bool cooling;
bool fanState;
int saveTimer;
unsigned long previousMillis = 0;
int x = 165, y = 231, w = 36, h = 36;
MCUFRIEND_kbv tft;
MAX6675 thermocouple(thermoCLK, thermoCS, thermoDO);
OneWire oneWire(oneWireBus);
DallasTemperature sensors(&oneWire);
// require touch screen calibration
// Put your calibrated touchSensor values here
const int XP=7,XM=A1,YP=A2,YM=6; //240x320 ID=0x9338
const int TS_LEFT=916,TS_RT=136,TS_TOP=132,TS_BOT=927;
#define MINPRESSURE 200
#define MAXPRESSURE 1000
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
// buttons
Adafruit_GFX_Button on_btn, off_btn, up1, dwn1, up2, dwn2, up3, dwn3, up4, dwn4, fanBtn;
// get touch input
int pixel_x, pixel_y;
bool Touch_getXY(void)
{
TSPoint p = ts.getPoint();
pinMode(YP, OUTPUT); //restore shared pins
pinMode(XM, OUTPUT);
digitalWrite(YP, HIGH); //because TFT control pins
digitalWrite(XM, HIGH);
bool pressed = (p.z > MINPRESSURE && p.z < MAXPRESSURE);
if (pressed) {
pixel_x = map(p.x, TS_LEFT, TS_RT, 0, tft.width());
pixel_y = map(p.y, TS_TOP, TS_BOT, 0, tft.height());
}
return pressed;
}
#define BLACK 0x0000
#define WHITE 0xFFFF
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
void setup(void)
{
//Serial.begin(9600); // Turn off serial communication while using serial ports
pinMode(buzzer, OUTPUT);
pinMode(relay, OUTPUT);
pinMode(fan, OUTPUT);
digitalWrite(buzzer, LOW);
digitalWrite(relay, LOW);
digitalWrite(fan, LOW);
//sensors.begin();
tft.begin(0x9338);
tft.setRotation(0);
tft.fillScreen(BLACK);
tft.setTextColor(BLACK, YELLOW);
tft.setTextSize(2);
tft.setCursor(45, 5);
tft.print(" REFLOW IRON ");
tft.fillRect(45, 0, 156, 5, YELLOW);
tft.fillRect(45, 20, 156, 5, YELLOW);
tft.setAddrWindow(x, y, x + w - 1, y + h - 1);
tft.pushColors((const uint8_t*)fan1, w * h, 1, false);
tft.setAddrWindow(0, 0, tft.width() - 1, tft.height() - 1);
fanBtn.initButton(&tft, 220, 250, 18, 24, WHITE, BLACK, WHITE, "F", 2);
fanBtn.drawButton(false);
// initialise buttons
up1.initButton(&tft, 195, 108, 20, 20, WHITE, BLACK, WHITE, "+", 2);
dwn1.initButton(&tft, 220, 108, 20, 20, WHITE, BLACK, WHITE, "-", 2);
up1.drawButton(false);
dwn1.drawButton(false);
up2.initButton(&tft, 195, 143, 20, 20, WHITE, BLACK, WHITE, "+", 2);
dwn2.initButton(&tft, 220, 143, 20, 20, WHITE, BLACK, WHITE, "-", 2);
up2.drawButton(false);
dwn2.drawButton(false);
up3.initButton(&tft, 195, 178, 20, 20, WHITE, BLACK, WHITE, "+", 2);
dwn3.initButton(&tft, 220, 178, 20, 20, WHITE, BLACK, WHITE, "-", 2);
up3.drawButton(false);
dwn3.drawButton(false);
up4.initButton(&tft, 195, 213, 20, 20, WHITE, BLACK, WHITE, "+", 2);
dwn4.initButton(&tft, 220, 213, 20, 20, WHITE, BLACK, WHITE, "-", 2);
up4.drawButton(false);
dwn4.drawButton(false);
on_btn.initButton(&tft, 60, 295, 100, 40, WHITE, 0x068B, WHITE, "START", 2);
off_btn.initButton(&tft, 180, 295, 100, 40, WHITE, 0xF340, WHITE, "RESET", 2);
on_btn.drawButton(false);
off_btn.drawButton(false);
}
void loop(void)
{
if (millis() - previousMillis >= 1000) {
previousMillis = millis();
temp = thermocouple.readCelsius(); // get temperature from thermocouple
//sensors.requestTemperatures();
//temp1 = sensors.getTempCByIndex(0); // get ambient temperature
if (reflowing) {
// pre heating stage
if (temp < preHeat)
tft.drawRect(0, 90, 240, 35, RED);
// reflow stage
if (temp > preHeat) {
tft.drawRect(0, 90, 240, 35, BLACK);
tft.drawRect(0, 125, 240, 35, GREEN);
// turn off the heating element if temp exceeds set reflow temp
if (temp > reflow) {
digitalWrite(relay, LOW);
}
// turn it back on otherwise
if (temp < reflow) {
digitalWrite(relay, HIGH);
}
// countdown timer
timer--;
// timer finished
if (timer == 0) {
reflowing = false; // turn off reflow
cooling = true; // turn on cooling
digitalWrite(relay, LOW); // turn off relay
digitalWrite(buzzer, HIGH); // turn off buzzer
delay(500);
digitalWrite(buzzer, LOW); // turn off buzzer
tft.drawRect(0, 125, 240, 35, BLACK);
}
mm = timer / 60;
ss = timer % 60;
tft.fillRect(130, 203, 50, 20, BLACK);
tft.fillRect(30, 233, 120, 40, BLACK);
}
}
tft.fillRoundRect(115, 40, 115, 41, 15, RED);
}
if (cooling) {
tft.setAddrWindow(x, y, x + w - 1, y + h - 1);
tft.pushColors((const uint8_t*)fan1, w * h, 1, false);
tft.setAddrWindow(0, 0, tft.width() - 1, tft.height() - 1);
delay(50);
tft.setAddrWindow(x, y, x + w - 1, y + h - 1);
tft.pushColors((const uint8_t*)fan2, w * h, 1, false);
tft.setAddrWindow(0, 0, tft.width() - 1, tft.height() - 1);
delay(50);
if (temp > coolDown) {
digitalWrite(fan, HIGH);
tft.drawRect(0, 160, 240, 35, BLUE);
}
if (temp < coolDown) {
cooling = false;
timer = saveTimer;
digitalWrite(fan, LOW);
tft.drawRect(0, 160, 240, 35, BLACK);
tft.fillRect(130, 203, 50, 20, BLACK);
}
}
bool down = Touch_getXY();
// Start | Reset
on_btn.press(down && on_btn.contains(pixel_x, pixel_y));
off_btn.press(down && off_btn.contains(pixel_x, pixel_y));
if (on_btn.justPressed()) on_btn.drawButton(true);
if (off_btn.justPressed()) off_btn.drawButton(true);
if (on_btn.justReleased()) {
on_btn.drawButton();
if (timer > 30) {
saveTimer = timer;
reflowing = true;
mm = timer / 60;
ss = timer % 60;
tft.fillRect(130, 203, 50, 20, BLACK);
tft.fillRect(30, 233, 120, 40, BLACK);
digitalWrite(relay, HIGH);
}
}
if (off_btn.justReleased()) {
off_btn.drawButton();
asm volatile ("jmp 0"); // reset
}
// PreHeat
up1.press(down && up1.contains(pixel_x, pixel_y));
dwn1.press(down && dwn1.contains(pixel_x, pixel_y));
if (up1.justPressed()) up1.drawButton(true);
if (dwn1.justPressed()) dwn1.drawButton(true);
if (up1.justReleased()) {
up1.drawButton();
tft.fillRect(130, 98, 50, 20, BLACK);
preHeat++;
}
if (dwn1.justReleased()) {
dwn1.drawButton();
tft.fillRect(130, 98, 50, 20, BLACK);
preHeat--;
}
// Reflow
up2.press(down && up2.contains(pixel_x, pixel_y));
dwn2.press(down && dwn2.contains(pixel_x, pixel_y));
if (up2.justPressed()) up2.drawButton(true);
if (dwn2.justPressed()) dwn2.drawButton(true);
if (up2.justReleased()) {
up2.drawButton();
tft.fillRect(130, 133, 50, 20, BLACK);
reflow++;
}
if (dwn2.justReleased()) {
dwn2.drawButton();
tft.fillRect(130, 133, 50, 20, BLACK);
reflow--;
}
// cooldown
up3.press(down && up3.contains(pixel_x, pixel_y));
dwn3.press(down && dwn3.contains(pixel_x, pixel_y));
if (up3.justPressed()) up3.drawButton(true);
if (dwn3.justPressed()) dwn3.drawButton(true);
if (up3.justReleased()) {
up3.drawButton();
tft.fillRect(130, 168, 50, 20, BLACK);
coolDown++;
}
if (dwn3.justReleased()) {
dwn3.drawButton();
tft.fillRect(130, 168, 50, 20, BLACK);
coolDown--;
}
// set timer
up4.press(down && up4.contains(pixel_x, pixel_y));
dwn4.press(down && dwn4.contains(pixel_x, pixel_y));
if (up4.justPressed()) up4.drawButton(true);
if (dwn4.justPressed()) dwn4.drawButton(true);
if (up4.justReleased()) {
up4.drawButton();
tft.fillRect(130, 203, 50, 20, BLACK);
timer += 5;
}
if (dwn4.justReleased()) {
dwn4.drawButton();
tft.fillRect(130, 203, 50, 20, BLACK);
timer -= 5;
}
// fan
fanBtn.press(down && fanBtn.contains(pixel_x, pixel_y));
if (fanBtn.justPressed()) fanBtn.drawButton(true);
if (fanBtn.justReleased()) {
fanBtn.drawButton();
fanState = !fanState;
}
if (fanState) {
digitalWrite(fan, HIGH);
tft.setAddrWindow(x, y, x + w - 1, y + h - 1);
tft.pushColors((const uint8_t*)fan1, w * h, 1, false);
tft.setAddrWindow(0, 0, tft.width() - 1, tft.height() - 1);
delay(50);
tft.setAddrWindow(x, y, x + w - 1, y + h - 1);
tft.pushColors((const uint8_t*)fan2, w * h, 1, false);
tft.setAddrWindow(0, 0, tft.width() - 1, tft.height() - 1);
delay(50);
}
else {
digitalWrite(fan, LOW);
}
tft.setTextSize(3);
tft.setTextColor(RED);
tft.setCursor(5, 50);
tft.print("Temp : ");
tft.setTextColor(WHITE);
tft.print(temp);
tft.print((char)247);
tft.print("C");
tft.setTextSize(2);
tft.setTextColor(WHITE);
tft.setCursor(10, 100);
tft.print("Pre Heat : ");
tft.print(preHeat);
tft.setTextColor(WHITE);
tft.setCursor(10, 135);
tft.print("Reflow : ");
tft.print(reflow);
tft.setTextColor(WHITE);
tft.setCursor(10, 170);
tft.print("Cooldown : ");
tft.print(coolDown);
tft.setTextColor(WHITE);
tft.setCursor(10, 205);
tft.print("Timer(s) : ");
tft.print(timer);
tft.setTextSize(4);
tft.setTextColor(WHITE);
tft.setCursor(30, 235);
tft.print(mm);
tft.print(":");
if (ss < 10) tft.print(0);
tft.print(ss);
tft.setTextSize(2);
}
And hey presto........my screen and buttons all work as anticipated!
Now i just need to add my circuit and see if my reflow hotplate works.
But can i ask? Is there a way of me now permanently storing the Hex code ID= 0x9338 somewhere in MCUFRIEND so that i dont have to remember it?
Thanks again for the assistance,
Geo.