This project can be used to provide realistic experience while playing video games or even provide realistic training to military personnel.The idea is to connect the vest to a video game through usb port using Esp8266 NodeMCU board and receive hits and injuries data from the game and make it felt using sounds, lights and vibration motors.

• 2 x Esp8266 NodeMcu (transmitter & receiver).
• 1 x Arduino Mega2560.
• 2 x 3.7v Li-ion battery in series.
• 1 x LM7805.
• 1 x 0.01 uf ceramic capacitor.
• 1 x 0.1 uf radial capacitor.
• 1 x toggle switch.
• 7 x mini vibration motors.
• 1 x buzzer.
• 7 x yellow & red LEDs.
• 2 x green LEDs.
• 7 x 2n2222 transisors.
• 8 x 1k ohm, 14 x 100 ohm and 7 x 27 ohm resistors.
• PCBs and Ethernet wires

• Check out the transmitter NodeMcu code here.
• Check out the receiver NodeMcu code here
• Check out the Arduino Mega2560 code here

• At first we program the 2 NodeMcu and the arduino mega2560 using Arduino IDE and the codes above.

• Design the body PCBs on Proteus Ares using the circuit diagram below:

  

  here is the body PCB:

  

• Design the head PCB using the circuit diagram below:

  

  here is the head PCB:

  

• Design the alarm PCB using the circuit diagram below:

  

  and here is the alarm pcb:

  

• Connect one Esp8266 NodeMcu (transmitter) to computer using usb cable.

• Then we wire up the other Esp8266 NodeMcu (receiver) to the Arduino board as shown below:

  

• There are 7 PCBs, one for each arm and Legs, two for chest, one for head and one for alarm.
• Each PCB is connected to te arduino through 2 pins, one fo each LED Exept for head and alarm they are connected through 1 pin only.
• For the PCBs connected through 2 pins, the yellow LED means 1 shot and the red LED means 2 shot and alarm is activated meaning GAMEOVER.
• From pin 2 to pin 13, pin 2 and pin 3 is connected to the right arm PCB, pin 4 and 5 is connected to the left arm PCB and so on.
• Pin 14 is connected to the head PCB and pin 15 is the alarm pin.