Chess clock

thingiverse

Chess clock is based on : https://www.instructables.com/How-to-Make-a-Chess-Clock-With-Arduino/ By simaopintocorreia Instructable is well written and contains all information necessary for a successful project. Clock is powered by rechargeable batteries held by my 2 battery holder. I added a countdown clock to beginning of program and an alarm that sounds when a player looses. Busser is connected to pin 3. Also added section to program that allow for play time to change: 1 min, 3 min, 5 min, and 10 min games. To make wiring easier, I made two small boards - one for power and another for ground. That allows wire to be plugged into small boards rather than main arduino board. Switch does not work as planned - it does not completely shut off clock. Will design with proper switch. Plug power supply in to start clock. Code follows: #include <LiquidCrystal.h> LiquidCrystal lcd (7, 8, 9, 10, 11, 12); const int buttonPin = 2; // the number of the pushbutton pin const int ledPin = 13; // the number of the LED pin // Variables will change: int ledState = HIGH; // the current state of the output pin int buttonState; // the current reading from the input pin int lastButtonState = LOW; // the previous reading from the input pin unsigned long lastDebounceTime = 0; // the last time the output pin was toggled unsigned long debounceDelay = 50; // the debounce time; increase if the output flickers //double whiteTime = 610000;//10 minute game add // to not use timer, remove // to select timer //double whiteTime = 310000;//5 minute game double whiteTime = 190000;//3 minute game //double whiteTime = 70000;//1 minute game int whiteMinutes = 0; int whiteSeconds = 0; double whiteLastCheck = millis(); //double blackTime = 610000;//10 minute game add // to not use timer, remove // to select timer //double blackTime = 310000;//5 minute game double blackTime = 190000;//3 minute game //double blackTime = 70000;//1 minute game 70000 int blackMinutes = 0; int blackSeconds = 0; double blackLastCheck = millis(); bool isWhiteTurn = true; bool gameOver = false; int countDown =0; //used for initial start countdown int buzzer = 3; int buzzerOff = 0; void setup() { Serial.begin(9600); lcd.begin(16, 2); lcd.setCursor(0, 0); pinMode(buttonPin, INPUT); pinMode(ledPin, OUTPUT); UpdateWhiteTime(); UpdateBlackTime(); //int whiteButtonState = 0; //int blackButtonState = 0; } void loop() { int reading = digitalRead(buttonPin); Serial.println(ledState); if (reading != lastButtonState) { lastDebounceTime = millis(); } if ((millis() - lastDebounceTime) > debounceDelay) { // whatever the reading is at, it's been there for longer // than the debounce delay, so take it as the actual current state: // if the button state has changed: if (reading != buttonState) { buttonState = reading; // only toggle the LED if the new button state is HIGH if (buttonState == HIGH) { ledState = !ledState; } } }// set the LED: digitalWrite(ledPin, ledState); if(ledState==1){ StartWhiteTurn (); Serial.println("White"); UpdateWhiteTime(); } else if(ledState==0){ StartBlackTurn (); Serial.println("Black"); UpdateBlackTime(); } lastButtonState = reading; } void UpdateWhiteTime() { lcd.setCursor(10,0); lcd.print("White"); lcd.setCursor(12, 1); Serial.println("White"); whiteTime -= ((millis() - whiteLastCheck)); whiteLastCheck = millis(); if (countDown ==0){ lcd.clear(); lcd.setCursor(2,1); lcd.print("Count Down"); for (int i = 9;i >0; i--){ lcd.setCursor(13,1); lcd.print(i); delay(1000); } countDown = 1; lcd.clear(); } if (whiteTime <= 0) { gameOver = true; lcd.print("LOSE"); if(buzzerOff<1){ tone(buzzer, 400); delay(500); noTone(buzzer); delay(2000);} buzzerOff=1; return; } whiteMinutes = floor(whiteTime / 60000); whiteSeconds = floor(whiteTime / 1000) - whiteMinutes * 60; lcd.print(whiteMinutes); lcd.print(":"); if (whiteSeconds < 10) { lcd.print(0); } lcd.print(whiteSeconds); }// end printWait void UpdateBlackTime() { lcd.setCursor(0,0); lcd.print(" Black"); lcd.setCursor(0, 1); Serial.println("Black"); blackTime -= ((millis() - blackLastCheck)); blackLastCheck = millis(); if (blackTime <= 0) { gameOver = true; lcd.print("LOSE"); if(buzzerOff<1){ tone(buzzer, 500); delay(500); noTone(buzzer); delay(2000);} buzzerOff=1; return; } blackMinutes = floor(blackTime / 60000); blackSeconds = floor(blackTime / 1000) - blackMinutes * 60; lcd.print(blackMinutes); lcd.print(":"); if (blackSeconds < 10) { lcd.print(0); } lcd.print(blackSeconds); }// end printWait void StartWhiteTurn () { if (isWhiteTurn) { return; } isWhiteTurn = true; whiteLastCheck = millis(); } // end StartWhiteTurn void StartBlackTurn () { if (!isWhiteTurn) { return; } isWhiteTurn = false; blackLastCheck = millis(); } // end StartBlackTurn