This program implements a basic chess clock. It uses the TM1637Display library

to control the 7-segment displays and show the remaining time for each player.

The clock allows players to alternate turns and will display a "LOSE" message if a player's time runs out.

Hardware used:

- 1 Arduino Nano 3

- 2 TM1637 7-segment displays

- 2 Endstops

- 3 Microswitches

Connections:

• Player 1 display

  CLK: Pin 2

  DIO: Pin 3

• Player 2 display

  CLK: Pin 4

  DIO: Pin 5

• Player 1 button: Pin 7
• Player 2 button: Pin 8
• Increase time button: Pin 16
• Start/Reset button: Pin 15
• Decrease time button: Pin 14

Functionalities:

• Show the remaining time for each player on their respective 7-segment display.
• Alternate turns between players using buttons.
• Detect time expiration and display "LOSE" for the player who runs out of time.

Libraries:

• TM1637Display: [https://github.com/avishorp/TM1637](https://github.com/avishorp/TM1637)

   

Firmware:

• ChessClock.ino v1.0

Chess Clock Instructions

• Initial Setup

  Power On: When the chess clock is powered on, the display will show the default configured time.

   

• Time Adjustment:

  • Increase Time: 
    • Press the Increase button to add time.
    • From 1 to 5 minutes, the time increases in 1-minute increments.
    • From 5 to 90 minutes, the time increases in 5-minute increments.
  • Decrease Time:
    • Press the Decrease button to subtract time.
    • From 5 to 1 minutes, the time decreases in 1-minute increments.
    • From 90 to 5 minutes, the time decreases in 5-minute increments.
  • Time Range:
    • The minimum configurable time is 1 minute and the maximum is 90 minutes.

   

• Starting the Game:

   Once you have set the desired time for the game, press the Start button to begin. The active player's time will start counting down.

   

• During the Game

  • Turn Switching:

    When the active player presses their button, the other player's clock will start counting down.

    Players must alternate turns by pressing their respective buttons.

  • Pause and Resume:

    Press the Play/Pause button to pause the countdown. Press it again to resume the countdown.

  • End of Game:

    If a player's time reaches 0, the display will show the word "LOSE" indicating that the player has run out of time and lost the game.

  • Game Reset:

    If you want to reset the time configuration while a game is in progress, hold the Start/Reset button for 3 seconds. The clock will return to the initial configuration mode, allowing you to adjust the time again before starting a new game.