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https://github.com/YuzuZensai/MCUFRIEND_kbv.git
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203 lines
7.4 KiB
C++
203 lines
7.4 KiB
C++
// the regular Adafruit "TouchScreen.h" library only works on AVRs
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// different mcufriend shields have Touchscreen on different pins
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// and rotation.
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// Run the TouchScreen_Calibr_native sketch for calibration of your shield
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#include <MCUFRIEND_kbv.h>
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MCUFRIEND_kbv tft; // hard-wired for UNO shields anyway.
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#include <TouchScreen.h>
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char *name = "Please Calibrate."; //edit name of shield
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const int XP=6,XM=A2,YP=A1,YM=7; //ID=0x9341
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const int TS_LEFT=907,TS_RT=136,TS_TOP=942,TS_BOT=139;
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TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
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TSPoint tp;
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#define MINPRESSURE 200
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#define MAXPRESSURE 1000
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int16_t BOXSIZE;
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int16_t PENRADIUS = 1;
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uint16_t ID, oldcolor, currentcolor;
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uint8_t Orientation = 0; //PORTRAIT
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// Assign human-readable names to some common 16-bit color values:
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#define BLACK 0x0000
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#define BLUE 0x001F
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#define RED 0xF800
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#define GREEN 0x07E0
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#define CYAN 0x07FF
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#define MAGENTA 0xF81F
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#define YELLOW 0xFFE0
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#define WHITE 0xFFFF
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void show_Serial(void)
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{
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Serial.println(F("Most Touch Screens use pins 6, 7, A1, A2"));
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Serial.println(F("But they can be in ANY order"));
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Serial.println(F("e.g. right to left or bottom to top"));
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Serial.println(F("or wrong direction"));
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Serial.println(F("Edit name and calibration statements\n"));
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Serial.println(name);
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Serial.print(F("ID=0x"));
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Serial.println(ID, HEX);
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Serial.println("Screen is " + String(tft.width()) + "x" + String(tft.height()));
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Serial.println("Calibration is: ");
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Serial.println("LEFT = " + String(TS_LEFT) + " RT = " + String(TS_RT));
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Serial.println("TOP = " + String(TS_TOP) + " BOT = " + String(TS_BOT));
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Serial.println("Wiring is always PORTRAIT");
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Serial.println("YP=" + String(YP) + " XM=" + String(XM));
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Serial.println("YM=" + String(YM) + " XP=" + String(XP));
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}
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void show_tft(void)
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{
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tft.setCursor(0, 0);
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tft.setTextSize(1);
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tft.print(F("ID=0x"));
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tft.println(ID, HEX);
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tft.println("Screen is " + String(tft.width()) + "x" + String(tft.height()));
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tft.println("");
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tft.setTextSize(2);
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tft.println(name);
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tft.setTextSize(1);
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tft.println("PORTRAIT Values:");
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tft.println("LEFT = " + String(TS_LEFT) + " RT = " + String(TS_RT));
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tft.println("TOP = " + String(TS_TOP) + " BOT = " + String(TS_BOT));
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tft.println("\nWiring is: ");
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tft.println("YP=" + String(YP) + " XM=" + String(XM));
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tft.println("YM=" + String(YM) + " XP=" + String(XP));
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tft.setTextSize(2);
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tft.setTextColor(RED);
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tft.setCursor((tft.width() - 48) / 2, (tft.height() * 2) / 4);
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tft.print("EXIT");
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tft.setTextColor(YELLOW, BLACK);
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tft.setCursor(0, (tft.height() * 6) / 8);
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tft.print("Touch screen for loc");
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while (1) {
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tp = ts.getPoint();
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pinMode(XM, OUTPUT);
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pinMode(YP, OUTPUT);
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if (tp.z < MINPRESSURE || tp.z > MAXPRESSURE) continue;
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if (tp.x > 450 && tp.x < 570 && tp.y > 450 && tp.y < 570) break;
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tft.setCursor(0, (tft.height() * 3) / 4);
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tft.print("tp.x=" + String(tp.x) + " tp.y=" + String(tp.y) + " ");
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}
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}
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void setup(void)
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{
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uint16_t tmp;
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tft.reset();
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ID = tft.readID();
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tft.begin(ID);
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Serial.begin(9600);
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show_Serial();
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tft.setRotation(Orientation);
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tft.fillScreen(BLACK);
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show_tft();
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BOXSIZE = tft.width() / 6;
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tft.fillScreen(BLACK);
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tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED);
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tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW);
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tft.fillRect(BOXSIZE * 2, 0, BOXSIZE, BOXSIZE, GREEN);
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tft.fillRect(BOXSIZE * 3, 0, BOXSIZE, BOXSIZE, CYAN);
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tft.fillRect(BOXSIZE * 4, 0, BOXSIZE, BOXSIZE, BLUE);
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tft.fillRect(BOXSIZE * 5, 0, BOXSIZE, BOXSIZE, MAGENTA);
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tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);
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currentcolor = RED;
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delay(1000);
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}
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void loop()
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{
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uint16_t xpos, ypos; //screen coordinates
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tp = ts.getPoint(); //tp.x, tp.y are ADC values
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// if sharing pins, you'll need to fix the directions of the touchscreen pins
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pinMode(XM, OUTPUT);
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pinMode(YP, OUTPUT);
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// we have some minimum pressure we consider 'valid'
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// pressure of 0 means no pressing!
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if (tp.z > MINPRESSURE && tp.z < MAXPRESSURE) {
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// most mcufriend have touch (with icons) that extends below the TFT
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// screens without icons need to reserve a space for "erase"
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// scale the ADC values from ts.getPoint() to screen values e.g. 0-239
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//
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// Calibration is true for PORTRAIT. tp.y is always long dimension
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// map to your current pixel orientation
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switch (Orientation) {
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case 0:
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xpos = map(tp.x, TS_LEFT, TS_RT, 0, tft.width());
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ypos = map(tp.y, TS_TOP, TS_BOT, 0, tft.height());
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break;
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case 1:
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xpos = map(tp.y, TS_TOP, TS_BOT, 0, tft.width());
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ypos = map(tp.x, TS_RT, TS_LEFT, 0, tft.height());
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break;
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case 2:
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xpos = map(tp.x, TS_RT, TS_LEFT, 0, tft.width());
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ypos = map(tp.y, TS_BOT, TS_TOP, 0, tft.height());
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break;
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case 3:
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xpos = map(tp.y, TS_BOT, TS_TOP, 0, tft.width());
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ypos = map(tp.x, TS_LEFT, TS_RT, 0, tft.height());
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break;
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}
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// are we in top color box area ?
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if (ypos < BOXSIZE) { //draw white border on selected color box
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oldcolor = currentcolor;
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if (xpos < BOXSIZE) {
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currentcolor = RED;
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tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);
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} else if (xpos < BOXSIZE * 2) {
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currentcolor = YELLOW;
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tft.drawRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, WHITE);
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} else if (xpos < BOXSIZE * 3) {
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currentcolor = GREEN;
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tft.drawRect(BOXSIZE * 2, 0, BOXSIZE, BOXSIZE, WHITE);
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} else if (xpos < BOXSIZE * 4) {
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currentcolor = CYAN;
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tft.drawRect(BOXSIZE * 3, 0, BOXSIZE, BOXSIZE, WHITE);
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} else if (xpos < BOXSIZE * 5) {
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currentcolor = BLUE;
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tft.drawRect(BOXSIZE * 4, 0, BOXSIZE, BOXSIZE, WHITE);
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} else if (xpos < BOXSIZE * 6) {
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currentcolor = MAGENTA;
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tft.drawRect(BOXSIZE * 5, 0, BOXSIZE, BOXSIZE, WHITE);
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}
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if (oldcolor != currentcolor) { //rub out the previous white border
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if (oldcolor == RED) tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED);
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if (oldcolor == YELLOW) tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW);
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if (oldcolor == GREEN) tft.fillRect(BOXSIZE * 2, 0, BOXSIZE, BOXSIZE, GREEN);
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if (oldcolor == CYAN) tft.fillRect(BOXSIZE * 3, 0, BOXSIZE, BOXSIZE, CYAN);
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if (oldcolor == BLUE) tft.fillRect(BOXSIZE * 4, 0, BOXSIZE, BOXSIZE, BLUE);
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if (oldcolor == MAGENTA) tft.fillRect(BOXSIZE * 5, 0, BOXSIZE, BOXSIZE, MAGENTA);
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}
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}
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// are we in drawing area ?
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if (((ypos - PENRADIUS) > BOXSIZE) && ((ypos + PENRADIUS) < tft.height())) {
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tft.fillCircle(xpos, ypos, PENRADIUS, currentcolor);
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}
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// are we in erase area ?
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// Plain Touch panels use bottom 10 pixels e.g. > h - 10
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// Touch panels with icon area e.g. > h - 0
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if (ypos > tft.height() - 10) {
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// press the bottom of the screen to erase
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tft.fillRect(0, BOXSIZE, tft.width(), tft.height() - BOXSIZE, BLACK);
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}
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}
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}
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