lab8

lab8_task3.ino

// Another bug fixed

// final2

#include <M5Stack.h>

// for next 1 second timeout
uint32_t targetTime = 0;
uint32_t tempTime = 1000;
uint8_t hh = 0, mm = 0, ss = 1; // Get H, M, S from compile time

byte omm = 99, oss = 99;
byte xcolon = 0, xsecs = 0;
unsigned int colour = 0;
boolean isRunning = false;
boolean mustDraw = false;
boolean loopTerminator = false;
boolean isReseted = true;

void setup(void) {
  //Serial.begin(115200);
  M5.begin();
  // M5.Lcd.setRotation(1);
  M5.Lcd.fillScreen(TFT_WHITE);

  M5.Lcd.setTextSize(1);
  M5.Lcd.setTextColor(TFT_BLACK, TFT_WHITE);
  drawTime();
}

void loop() {

  //  if(isReseted) {
  //    targetTime = millis() + 1000;
  //  }

  if (M5.BtnA.wasPressed() && !isRunning) {
    hh++;
    if (hh == 100) hh = 0;
    mustDraw = true;
    drawTime();
    mustDraw = false;
    //    drawTime();
  }
  if (M5.BtnB.wasPressed() && !isRunning) {
    mm++;
    if (mm == 60) {
      hh++;
      mm = 0;
    }
    drawTime();
  }

  if (M5.BtnC.pressedFor(5000) && !isRunning) {
    hh = 0;
    mm = 0;
    drawTime();
    isRunning = false;
    loopTerminator = true;
    isReseted = true;
    tempTime = 1000;
  }

  if (M5.BtnC.wasReleased()) {
    if (loopTerminator) loopTerminator = false;
    else if (mm != 0 || hh != 0) {
      if (isRunning) {
        if (isReseted) tempTime = 1000;
        else tempTime = 1000 - (millis() - (targetTime - 1000));
      }
      isRunning = !isRunning;
      M5.Lcd.setTextColor(TFT_BLACK, TFT_WHITE);
      int ypos = 60;
      M5.Lcd.drawChar(':', xcolon + 3, ypos - 8, 8);
      isReseted = false;
    }
    targetTime = millis();
    drawTime();
  }

  if (!isRunning) {
    if (M5.BtnA.pressedFor(5000)) {
      hh = 0;
      mustDraw = true;
      drawTime();
      mustDraw = false;
      isReseted = true;
//      tempTime = 1000; // No need to reset miliseconds counter for minutes reset
    }
    if (M5.BtnB.pressedFor(5000)) {
      mm = 0;
      drawTime();
      isReseted = true;
      tempTime = 1000;
    }

  }

  if (isRunning) {

    // Set next update for 1 second later

    if (targetTime + tempTime < millis()) {
      targetTime = millis() + 1000;
      // Adjust the time values by adding 1 second
      ss--;              // Advance second
      if (ss == 0) {    // Check for roll-over
        ss = 1;          // Reset seconds to zero
        omm = mm;        // Save last minute time for display update
        mm--;            // Advance minute
        if (hh == 0 && mm < 1) {
          isRunning = false;
          mm = 0;
          drawTime();
          M5.Speaker.tone(440);
          while (true) {
            boolean tempA = M5.BtnA.read(), tempB = M5.BtnB.read(), tempC = M5.BtnC.read();
            if (M5.BtnA.read() != tempA || M5.BtnB.read() != tempB || M5.BtnC.read() != tempC ) {
              M5.Speaker.mute();
              isReseted = true;
              break;
            }
          }
          //          M5.Speaker.mute();
        }
        if (mm == 255 && isRunning) {   // Check for roll-over
          mm = 59;
          hh--;          // Advance hour
          if (hh < 0) { // Check for 24hr roll-over (could roll-over on 13)
            hh = 59;      // 0 for 24 hour clock, set to 1 for 12 hour clock
          }
        }
      }
      tempTime = 0;
    }
    drawTime();
    if(isReseted) tempTime = 1000;
  }

  M5.update();
}

static void drawTime() {
  M5.Lcd.setTextSize(1);
  M5.Lcd.setTextColor(TFT_BLACK, TFT_WHITE);
  // Update digital time
  int xpos = 35;
  int ypos = 60; // Top left corner ot clock text, about half way down
  int ysecs = ypos + 24;
  if (omm != mm || mustDraw) { // Redraw hours and minutes time every minute
    omm = mm;
    // Draw hours and minutes
    if (hh < 10) xpos += M5.Lcd.drawChar('0', xpos - 10, ypos, 8); // Add hours leading zero for 24 hr clock
    xpos += M5.Lcd.drawNumber(hh, xpos - 10, ypos, 8);           // Draw hours
    xcolon = xpos; // Save colon coord for later to flash on/off later
    xpos += M5.Lcd.drawChar(':', xpos + 3, ypos - 8, 8);
    if (mm < 10) xpos += M5.Lcd.drawChar('0', xpos + 10, ypos, 8); // Add minutes leading zero
    xpos += M5.Lcd.drawNumber(mm, xpos + 10, ypos, 8);           // Draw minutes
    xsecs = xpos + 10; // Sae seconds 'x' position for later display updates
  }
  if (isRunning) { // Redraw seconds time every second
//    oss = ss;
//    xpos = xsecs;

    if (mm % 2) { // Flash the colons on/off
      M5.Lcd.setTextColor(0xF79E, TFT_WHITE);        // Set colour to grey to dim colon
      M5.Lcd.drawChar(':', xcolon + 3, ypos - 8, 8);   // Hour:minute colon
      //        xpos += M5.Lcd.drawChar(':', xsecs, ysecs, 6); // Seconds colon
      M5.Lcd.setTextColor(TFT_BLACK, TFT_WHITE);    // Set colour back to yellow
    }
    else {
      M5.Lcd.drawChar(':', xcolon + 3, ypos - 8, 8);   // Hour:minute colon
      //        xpos += M5.Lcd.drawChar(':', xsecs, ysecs, 6); // Seconds colon
    }
  }

  //      //Draw seconds
  //      if (ss < 10) xpos += M5.Lcd.drawChar('0', xpos, ysecs, 6); // Add leading zero
  //      M5.Lcd.drawNumber(ss, xpos, ysecs, 6);                     // Draw seconds
  M5.Lcd.setTextSize(3);

  M5.Lcd.setCursor(55, 200);
  M5.Lcd.printf("M");    // draw M

  M5.Lcd.setCursor(150, 200);
  M5.Lcd.printf("S");  // draw S

  M5.Lcd.setCursor(230, 200);
  M5.Lcd.setTextSize(1);
  M5.Lcd.printf("START");
  M5.Lcd.setCursor(230, 210);
  M5.Lcd.printf("/STOP");// draw S// draw start/stop

}

Bug1 …This code don’t execute at all: solved
line 77 : if(M5.BtnC.pressedFor(5000)) { hh = 0; mm = 0; drawTime(); isRunning = false; }

** fixing bug 1 also fix bug 3

Bug2…Should be the better way of excuting this code instead of read() (sometimes read() doesn’twork) : solved
line 100 : if(M5.BtnA.read() != tempA || M5.BtnB.read() != tempB || M5.BtnC.read() != tempC ) { M5.Speaker.mute(); break; }