Project for EnlighteNUS, a hackathon organized by NUS-IEEE on 23rd-24th February, 2019.

With the theme being Education, we decided to make a teaching tool to help kids learn basic arithmetic: A modified real-time spinoff of the common two-player board game Battleships where opportunities are created when a player successsfully solves simple, randomly generated math problems.

Code:

• client.py (client code for RPi)
• server.py (server code for another RPi)

Setup:

• connect to server
• initialize variables
• get question list from server
• get user input for ship positions
• submit confirmation
• wait for both players confirmation

Loop:

• display qn no., current qn,
• wait for user input; thread with death/win
• if wrong, say wrong and go back to user input
• else, wait for user input on attack vector & start 5-second timer
• while timer<=5 || invalid/no input, wait for user input, else, send random attack vector

Interrupts:

• Attack interrupt (software interrupt when attack is made) (uses threading)
  • update P1 array after receiving data of P2 attack
• Hardware interrupt (button to change LED display to opponents)