// Setup for Uno and TouchScreen Sheild ELEGOO UNO R3 2.8"
//TFT with small white CD bought on Amazon in Nov 6,2021
//Not sure who I got this from, so I assume it's copyrighted
//Use only for personal use until I can find who to give proper credit to.
//I'm using an UNO, an ELEGOO UNO R3 2.8 Inches TFT Touch Screen
//This will display a few on off buttons which can be enabled to turn on relays or led's or....?
#include <Adafruit_GFX.h>
#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
#include <TouchScreen.h>
#define MINPRESSURE 200
#define MAXPRESSURE 1000
unsigned long previousMillis = 0;
const long interval = 1000;
const int XP=8,XM=A2,YP=A3,YM=9; //240x320 ID=0x9341
const int TS_LEFT=190,TS_RT=950,TS_TOP=968,TS_BOT=189;
int pixel_x, pixel_y; //Touch_getXY() updates global vars
int texty[] = {15, 65, 115, 165, 215};// words down
int buttony[] = {20, 70, 120, 170, 220};// buttons down
int rect[] = {10,60,110,160,210};// controll square down
char* labels[]={"START","STOP","THRTL","CLUTCH","LIGHT"};
bool firstrun = 1;
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
Adafruit_GFX_Button on_btn, off_btn, up_btn;
//Adafruit_INA219 sensor219; // Declare and instance of INA219
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()); // Determine where touch is X axis
pixel_y = map(p.y, TS_TOP, TS_BOT, 0, tft.height()); // Determine where touch is Y axis
}
else {pixel_x=0; pixel_y=0;
}
return pressed;
}
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
/////////////////////////// CHECK FOR TOUCH and ACT
int TouchCheck(bool pressed, int line)
{
bool down = Touch_getXY();
tft.setCursor(45, texty[line]);
tft.setTextColor(YELLOW); tft.setTextSize(2);
tft.println(labels[line]);
// X, Y, W, H, OUTLINE, FILL, TEXTCOLOR, LABEL_TXT, TEXT_SIZE
on_btn.initButton(&tft, 140, buttony[line], 50, 40, WHITE, CYAN, BLACK, "ON", 2); //Position of buttons
off_btn.initButton(&tft, 200, buttony[line], 50, 40, WHITE, CYAN, BLACK, "OFF", 2); //Position of buttons
if(firstrun) { tft.fillRect(10, rect[line], 30, 30, RED);
on_btn.drawButton(false);
off_btn.drawButton(false); }
on_btn.press(down && on_btn.contains(pixel_x, pixel_y));
off_btn.press(down && off_btn.contains(pixel_x, pixel_y));
Serial.print(pixel_x);
Serial.print(",");
Serial.println(pixel_y);
if (on_btn.justReleased())
on_btn.drawButton();
if (off_btn.justReleased())
off_btn.drawButton();
if (on_btn.justPressed()) {
on_btn.drawButton(false);
tft.fillRect(10, rect[line], 30, 30, GREEN);
digitalWrite(31+(line*2),LOW);
}
if (off_btn.justPressed()) {
off_btn.drawButton(false);
tft.fillRect(10, rect[line], 30, 30, RED);
digitalWrite(31+(line*2),HIGH);
}
}
void setup(void)
{
Serial.begin(9600);
// sensor219.begin(); // INA219
pinMode(31, OUTPUT); // Head Light
pinMode(33, OUTPUT); // Tail Light
pinMode(35, OUTPUT); // Cops Light
pinMode(37, OUTPUT); // 12V Bus
pinMode(39, OUTPUT); // 5V USB Power all but Arduino
digitalWrite(31,HIGH);
digitalWrite(33,HIGH);
digitalWrite(35,HIGH);
digitalWrite(37,HIGH);
digitalWrite(39,HIGH);
uint16_t ID = tft.readID();
Serial.print("TFT ID = 0x");
Serial.println(ID, HEX);
Serial.println("Calibrate for your Touch Panel");
if (ID == 0xD3D3) ID = 0x9488; // write-only shield
tft.begin(ID);
tft.setRotation(0); //PORTRAIT
tft.fillScreen(BLACK);
} // =========== SETUP ==============
void loop(void)
{
unsigned long currentMillis = millis();
int line; bool pressed;
for (line = 0; line < 5; line++) TouchCheck(pressed,line);
firstrun = 0;
float busVoltage = 0;
float current = 0; // Measure in milli amps
float power = 0;
// busVoltage = sensor219.getBusVoltage_V();
// current = sensor219.getCurrent_mA();
// power = busVoltage * (current/1000); // Calculate the Power
tft.setCursor(50, 262);
tft.setTextColor(GREEN); tft.setTextSize(3);
tft.print("BLOWER");
tft.setCursor(50, 300);
tft.setTextColor(RED); tft.setTextSize(4);
tft.print("CONTROLER");
// tft.print("V ");
// tft.print(current,1);
// tft.println("A");
// tft.setCursor(60, 365);
// tft.setTextColor(WHITE); tft.setTextSize(3);
// power = busVoltage * current;
// tft.print(power,2);
// tft.println("W");
/*
Serial.print("Bus Voltage: ");
Serial.print(busVoltage);
Serial.println(" V");
Serial.print("Current: ");
Serial.print(current);
Serial.println(" mA");
Serial.print("Power: ");
Serial.print(power);
Serial.println(" W");
Serial.println("");
*/
if (currentMillis - previousMillis >= 2000) {
// save the last time you blinked the LED
previousMillis = currentMillis;
tft.fillRect(0, 290, 400, 30, BLACK);
tft.fillRect(0, 290, busVoltage * 6, 30, BLUE);
tft.fillRect(0, 325, 400, 30, BLACK);
tft.fillRect(0, 325, power * -6, 30, WHITE);
}
} // =========== LOOP ==============
// TFT Touch Screen (Amazon)
// https://www.amazon.com/gp/product/B07D2FR5MJ/ref=ox_sc_act_title_1?smid=A1EJT7E0QSYEZM&psc=1
//
// DB-25 Panel to Guts Box:
// Pins
//
//1, 2, 3 GND
//4, 5, 6 Vcc (+5V from USB adapter)
//7 HEAD RELAY 1 BRN I/O 31
//8 TAIL RELAY 2 ORG I/O 33
//9 COPS RELAY 3 YEL I/O 35
//10 +12V RELAY 4 GRN I/O 37
//11 +5V RELAY 5 BLU I/O 39
