Arthur Bui, Suyash Matoli, Andres Monterrosas, Samir Vedantham (All members are in section A)

Overview

The objective of this project is to create a game between two players simulating a "laser tag" game. In order to do this, we utilized the Adafruit robot kits. They each have a pair of wheels, and we used smaller proto-boards to give better balance to the robots. We wish to control the robots using bluetooth capability via a smartphone. Using laser-pointers and photo-detectors, we can shoot and keep score. In this game, each robot has a total of three lives. The first robot to loose three lives looses the game. We have also added LEDs and sound effects to enhance the user experience while playing this laser tag simulation.

Demo Video

Pictures

Laser Pointing

Please notice the laser point at the left of the picture

Note: Unlike real-life Laser Tag, we are using an actual laser instead of IR emitters. Hence, our laser 'shoots' a red dot which can be seen on the wall.

Close-up of protoboard

Inside robot kit body The above picture shows 8 photodetectors and 1 laser inside the robot body

Bluetooth Application The above picture shows the bluetooth application that was used to control the robot. Buttons 1, 2, 3, and 4 were unused for this project.

Supplies

Two of each of the following:

• mbeds
• barrel adapter
• lasers
• Adafruit Bluefruit LE UART Friend Bluetooth Chip
  • Bundled Mobile App
• sd cards & readers
• speakers
• robot bodies
• H-bridges
• 2N3904 BJTs (for speakers)
• battery holders (4 AA)
• Smartphone

Needed several of the following

• 4 motors
• 4 wheels
• 6 Green LEDs
• 8 batteries
• 8 100-Ohm resistors
• 16 photodetectors

Other Supplies

• Wires
• Solder/Soldering Iron
• Duct Tape
• Cardboard
• X-acto knife

Block Diagram

Wiring Setup

Bluetooth

H Bridge

Speaker

Photodetector

Laser

SD card Reader

LEDs

Power Barrel

Batteries

Four AA batteries are installed in the battery holder. The barrel of the battery holder is attached to the barrel adapter on the protoboard.

Source Code