Infrared Fighting Tank

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About: Makeblock was founded in 2012 as the world's first open-source robot and programing platform. With more than 400 mechanical components, electronic modules, and software tools, we are determined to bring mean...

This project is to make two infrared fighting tanks with Starter Robot Kits, some mechanical parts and electric modules. They are controlled with 2.4G wireless joystick. So, how to make it?

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Step 1: Parts Required

Step 2: Assemble the Tank

Follow the instructions of Starter Robot Kit user manual to assemble the tank.

Assemble the tank gun with following parts:

Beam0808-136-Blue x 2

Beam0824-032-Blue x 1

Beam0808-024-Blue x 1

Socket Cap Screw M4x22-Button Head x 2

Socket Cap Screw M4x14-Button Head x 4

Nut 4mm x 2

Attach Beam0808-312 at the end of tank and install electronic modules.

Step 3: Soldering and Wiring

Solder a infrared transmitter with infrared LED, 330 Ω resistor and dupont wires. Wrap it with electric tape. Connect anode and cathode of infrared LED with black cable and red cable of dupont wire, respectively.

Connect electric modules with Orion board via RJ25 cables as follows:

Infrared transmitter: Port 2

Me RGB LED: Port 3

Me 7-Segment Serial Display: Port 4

Me Infrared Receiver Decode: Port 5

Me USB Host: Port 6

Me RJ25 Adapter: Port 7

LED RGB Strip: Me RJ25 Adapter Slot 2

Fix infrared transmitter with tape.

Step 4: Programing

Download Makeblock library and put it under Arduino libraries. The Arduino source code for infrared fighting tank is as follows:

#include "MeOrion.h"
#include <SoftwareSerial.h> #include "MeIR.h"
MeIR irsend;
MeDCMotor MotorL(M1);  
MeDCMotor MotorR(M2);
MeRGBLed ledBottom(PORT_3);
Me7SegmentDisplay disp(PORT_4);
MeInfraredReceiver infraredReceiverDecode(PORT_5);
MeUSBHost joypad(PORT_6);
//  Corresponding buffer data of keys on the Joystick
//  Default:128-127-128-127-15-0-0-128
//  L1:128-127-128-127-15-1-0-128
//  R1:128-127-128-127-15-2-0-128
//  L2:128-127-128-127-15-4-0-128
//  R2:128-127-128-127-15-8-0-128
//  Triangle key:128-127-128-127-31-0-0-128 (0001 1111)
//  Square key:128-127-128-127-143-0-0-128 (1000 1111)
//  X key:128-127-128-127-79-0-0-128 (0100 1111)
//  Circle key:128-127-128-127-47-0-0-128 (0010 1111)
//  Up:128-127-128-127-0-0-0-128 (0000 0000)
//  Down:128-127-128-127-4-0-0-128 (0000 0100)
//  Left:128-127-128-127-6-0-0-128 (0000 0110)
//  Right:128-127-128-127-2-0-0-128 (0000 0010)
//  Select:128-127-128-127-15-16-0-128
//  Start:128-127-128-127-15-32-0-128
//  Joystick:Right X-Right Y-Left X-Left Y-15-0-0-128
MeRGBLed ledTop(PORT_7, SLOT2, 15);
int moveSpeed = 200;
uint8_t ReceiverCode;
int bulletNumber = 16;
int khz = 38; // 38kHz carrier frequency for the NEC protocol
float lifeValue = 8;
boolean gotShootIndex = 1;
void setup()
{
  infraredReceiverDecode.begin();
  Serial.println("InfraredReceiverDecode Start!");
  Serial.begin(9600);
  joypad.init(USB1_0);
  disp.display(bulletNumber);
  displayLifeValue();
  int delayTime = 360;
  for (uint8_t t = 0; t < 16; t++) // blink led
  {
    ledBottom.setColor(200,0,0); // led on
    ledBottom.show();
    delay(delayTime);
    ledBottom.setColor(0,0,0); // led off
    ledBottom.show();
    delay(delayTime);
    delayTime -= 20;
  }
}
void shoot() { // shoot, bullet number -1
  bulletNumber -= 1;
  if(bulletNumber>=0) {
    unsigned int irSignal[] = {9000, 4500, 560, 560, 560, 560, 560, 1690, 560, 560, 560, 560, 560, 560, 560, 560, 560, 560, 560, 1690, 560, 1690, 560, 560, 560, 1690, 560, 1690, 560, 1690, 560, 1690, 560, 1690, 560, 560, 560, 560, 560, 560, 560, 1690, 560, 560, 560, 560, 560, 560, 560, 560, 560, 1690, 560, 1690, 560, 1690, 560, 560, 560, 1690, 560, 1690, 560, 1690, 560, 1690, 560, 39416, 9000, 2210, 560}; //AnalysIR Batch Export (IRremote) - RAW  
    irsend.sendRaw(irSignal, sizeof(irSignal) / sizeof(irSignal[0]), khz); // send ir signal
    ledBottom.setColor(0,0,200);
    ledBottom.show();
    Backward();
    buzzerOn();
    delay(100);
    Stop();
    Forward();
    delay(80);
    ledBottom.setColor(0,0,0);
    ledBottom.show();
    Stop();
    buzzerOff();    
  } else {
    bulletNumber=0;
  }
  disp.display(bulletNumber);
}
void gotShoot() {
  Serial.println(ReceiverCode);
  if(ReceiverCode == 0x08) {
    Serial.println("got shoot");
    
    lifeValue -= 0.5;
    if(lifeValue<0) {
      lifeValue = 0;
      
    }
    ledTop.setColorAt(lifeValue, 0, 0, 0);
    ledTop.show();
    if(gotShootIndex){
      ledBottom.setColor(200,0,0); // backward and flash red led
      ledBottom.show();
      Backward();
      delay(100);
      ledBottom.setColor(0,0,0);
      ledBottom.show();
      Stop();      
    }
    gotShootIndex = !gotShootIndex;
  }  
}
void displayLifeValue() {
   lifeValue = 8;
   for(int8_t t=0; t<lifeValue; t++) { // light led
     ledTop.setColorAt(t, 200,0,0);
     ledTop.show();
     delay(150);
   }
}
void loop()
{
  if(infraredReceiverDecode.available()) {
    ReceiverCode = infraredReceiverDecode.read();
    gotShoot();
  }
  if(!joypad.device_online) {
    joypad.probeDevice();
    delay(1000);
  } else {
    int len = joypad.host_recv();
    parseJoystick(joypad.RECV_BUFFER);
    delay(5);
  }
}
void parseJoystick(unsigned char *buf)   //Analytic function, print 8 bytes from USB Host
{
    //  print buffer data to debug
    // int i = 0;
    // for(i = 0; i < 7; i++)
    // {
    //     Serial.print(buf[i]);  
    //     Serial.print('-');
    // }
    // Serial.println(buf[7]);
    // delay(10);
    switch (buf[5])
    {
        case 1: // L1   reset life value
            displayLifeValue();           
            break;
        case 2: // R1  reset bullet number
            bulletNumber = 16;
            disp.display(bulletNumber);           
            break;
        case 4: // L2
            
            break;
        case 8: // R2
           
            break;
        default:
            break;
    }
    
    if ((128 != buf[0]) || (127 != buf[1]) || (128 != buf[2]) || (127 != buf[3]))
    {
        //  buf[0]-buf[3] corresponding to the left and right joystick
    }
    else
    {
        switch (buf[4])
        {
            case 79: // X
                Stop();
                break;
            case 0: // up
                Forward();
                break;
            case 4: // down
                Backward();
                break;
            case 6: // left
                TurnLeft();
                break;
            case 2: // right
                TurnRight();
                break;
            case 143: // square key
                break;
             case 31: // triangle key
                shoot();                
                break;
             case 47: // circle key
                
                break;                              
            default:
                Stop();
                break;
        }
    }
}
void Forward()
{
  MotorL.run(-moveSpeed);
  MotorR.run(moveSpeed);
}
void Backward()
{
  MotorL.run(moveSpeed);
  MotorR.run(-moveSpeed);
}
void TurnLeft()
{
  MotorL.run(moveSpeed);
  MotorR.run(moveSpeed);
}
void TurnRight()
{
  MotorL.run(-moveSpeed);
  MotorR.run(-moveSpeed);
}
void Stop()
{
  MotorL.run(0);
  MotorR.run(0);
}

Step 5: Upload Code and Fire

Follow the above steps to make another tank, upload code to Orion board with Arduino IDE, plug usb module into Me USB Host, connect joystick with tank, you're ready to fire and have fun.

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    15 Discussions

    0
    None
    laith mohamed

    3 years ago

    Its engineering + fun ..... thats awesome

    0
    None
    Eugene_Liu

    3 years ago

    Bro, this is one of most exciting project I even see here. I love. Just few quick thoughts: 1. could you let code to control one of the tank to fight with another one ? 2. further more, could these 2 tanks fight remotely through internet ? 3. maybe there is competition ?

    Great work !

    1 reply
    0
    None
    Makeblock RoboticsEugene_Liu

    Reply 3 years ago

    Thanks for your advice. The tank gets shot if its infrared receiver module receive IR signal from another tank. Fighting remotely through internet is really cool. More work need to be done, like adding wifi module.

    0
    None
    I-robostein

    3 years ago

    Amazing!!!!! but as the others... what is the effective range

    other than that it is cool

    1 reply
    0
    None
    alpersunter

    3 years ago

    it has to be too fun to play

    damn it bro,you didn't reply again,i failed again with your voice controlled drone.Btw i made my own instructables.Btw this project is wicked,you should make a drone laser tag

    0
    None
    Srijal97

    3 years ago

    Awesome! love the recoil!

    What is the effective range?

    1 reply
    0
    None
    Morealin

    3 years ago

    Really cool! What is the effective "shooting" range of the tanks ?

    1 reply