Initializing

• Set up SPI, ADC, GPIO, PWM, timers, and all pan structures

• Initialize each pan’s state to Welcome, reset counters, and clear LEDs

• Display WELCOME message

• Transition into Welcome for each pan

Cooking

• Every Counter Timer timeout:

  • Increase cooked counter

  • Add a “doneness” pixel to LED matrix

  • Restart counter timer

• When BurningStart timer expires:

  • Switch to Burning

  • Turn on red LED, turn off green LED

  • Turn on speaker

• If PanPulledOff:

  • Stop burn timer

  • Transition to ReadyforCOOK

• When FoodCooked counter reaches 24 (DISHCOMPLETE):

  • Transition to Done

• Countdown timer expiration → Idle (Game Over)

• No-Input timer expiration → Error + global TIMEOUT → Game Over

CoolDown

• If PanPushedOn:

  • Stop cool timer

  • Return to Burning, turn speaker back on

• When Cool timer expires:

  • Turn on green LED, turn off red LED

  • Transition to ReadyforCOOK

Events Monitored:

• Cool timer timeout

• PanPushedOn

• Countdown / No-Input / Timeout timers (same behavior as above)

ReadyforCOOK

• Wait for PanPushedOn:

  • Randomize burn delay

  • Restart burningStart timer

  • Restart counter timer

  • Transition to Cooking

• Countdown, No-Input, Timeout → possible Game Over

Idle (Game Over & Reset)

• Display GAME OVER message

• Turn off all LEDs and speaker

• Stop all pan timers

• Move servo to dispense reward if required

• Wait 7 seconds

• Reset all pans to Welcome, clear counters

• Re-display WELCOME screen

• Restart for next game

Events:

• GoIdle (from multiple states)

• SERVO_TIMER for reward servo toggling

• COUNTDOWN_OVER_DISPLAY_TIMER to return to Welcome
  
  

Welcome

• Show WELCOME message on the display (only pan 0 triggers message)

• Wait for ButtonPushed

  • Ensure all pans are placed on their IR sensors

  • Clear display modules

  • Randomly choose a burn delay

  • Read potentiometer multiplier

  • Start:

    • Cooking counter timer

    • Burning-start timer

    • Game countdown timer

    • No-input timer

  • Turn on the green LED for that pan

  • Transition to Cooking

Events Received:

• ButtonPushed

• PanPushedOn / PanPulledOff (indirect global timers reset)

Burning

• Every Counter Timer timeout:

  • Increase burnt counter

  • Add burn pixel to LED matrix

  • Restart timer

• If FoodBurnt counter reaches 8 (FOODBURN):

  • Turn off red LED

  • Turn off speaker if no other pan is burning

  • Transition to Done

• If PanPulledOff:

  • Pick random cool-down delay

  • Start Cool timer

  • Turn off speaker if no other pan burning

  • Transition to CoolDown

• Countdown, No-Input, and Timeout behave same as Cooking state

Done

• Turn off both LEDs

• Track how many pans have finished

• If all pans are Done:

  • Trigger Game Over → Idle

Also handles:

• Countdown decrease

• No-Input error

• Global timeout → Idle

Message Routing

All display messages are sent via SPI to the PrintService using:

• ES_NEW_INFO

• ES_CountDown

• ES_NEW_MESSAGE (depending on what is triggered)