Published April 11, 2016

Joystick Wireless Remote Control Car

In this application note, we will combine several products in imall.iteadstudio.com to make a joystick wireless remote control car.

BeginnerFull instructions provided30 minutes1,873

Things used in this project

Hardware components

Iteaduino-BT Arduino Compatible Board With Master/Slave Bluetooth Wireless Module HC-05

ITEAD 4 Buttons Joystick Shield Module For Arduino UNO MEGA R3 Mega2560

Itead MBoard Arduino Board Kit For Home Automation Or Robot Control

Itead Starter Robot Car Kit

Itead BTBee

9V lithium battery

Story

In this application note, we will combine several products in imall.iteadstudio.com to make a joystick wireless remote control car. The car kit is controlled by mboard, and you can install this car kit by following its instruction in imall page. We will use BTboard as the remote controller. It’s a UNO development board with Bluetooth function and compatible with the master-slave mode. The last important component we use is Joystick shield. In the tutorial, its buttons won’t be used, but you can use them to develop other functions such as light controlling and camera opening by yourself.

Set Iteaduino BT

1. Pull out the jumpers of A, B side in Iteaduino BT, and upload an empty demo into it.(This step aims to test whether the blutooth serial port can work.)

void setup(){}
void loop(){}

2. Plug the two jumpers in A side, and switch the Bluetooth mode to CMD end, then press the BT-RST button. Open the serial monitor of arduino IDE, and set the baud rate 38400 and the mode Both NL&CR.

3. Send the content “AT+ROLE=1” and “AT+CMODE=1” to Iteaduino BT respectively. If you receive "OK" twice, that means commands sending successfully.

4. Pull out the jumpers and upload the joystick demo into Iteaduino BT (Board option choose Arduino Duemilanove), then plug jumpers into B side, switch the Bluetooth mode to DAT and reset the Bluetooth.Attention: the jumpers should be unplugged when uploading demo into Iteaduino BT.

5. Plug Joystick shield in Iteaduino BT, reset the mainboard. The set of Iteaduino BT is done.

Construct Car Kit

Upload car demo into Mboard and construct car kit with Mboard, then plug BTBee into the Xbee socket on Mboard. Power the car with 9V lithium battery.

Play the Car with Joystick

When the Bluetooth of Iteaduino BT and BTBee paired, you can use the joystick to make the car moving forward or back, turning right or left.

Code

Untitled file

#define _US 0x5553
#define _DS 0x4453
#define _LS 0x4C53
#define _RS 0x5253
#define _UL 0x554C
#define _DL 0x444C
#define _UR 0x5552
#define _DR 0x4452

#define _SS 0x5353

#define ENA 10
#define ENB 11
#define IN1 7
#define IN2 8
#define IN3 12
#define IN4 13

#define LOWSPEED 100
#define HIGHSPEED 200

#define IN1_HIGH	PORTE |=0x40
#define IN1_LOW		PORTE &=~0x40
#define IN2_HIGH	PORTB |=0x10
#define IN2_LOW		PORTB &=~0x10
#define IN3_HIGH	PORTD |=0x40
#define IN3_LOW		PORTD &=~0x40
#define IN4_HIGH	PORTC |=0x80
#define IN4_LOW		PORTC &=~0x80
#define ENA_HIGH	PORTB |=0x40
#define ENA_LOW		PORTB &=~0x40
#define ENB_HIGH	PORTB |=0x80
#define ENB_LOW		PORTB &=~0x80

uint16_t value;

uint8_t r_buffer[4];

uint8_t number;
uint8_t command;


void setup(){
	pinMode(ENA,OUTPUT);
	pinMode(ENB,OUTPUT);
	pinMode(IN1,OUTPUT);
	pinMode(IN2,OUTPUT);
	pinMode(IN3,OUTPUT);
	pinMode(IN4,OUTPUT);
	//ENA_HIGH;   
	//ENB_HIGH 

	
       run(0);


Serial1.begin(9600);

}

void loop(){

	if(Serial1.available())
	{
		uint8_t readbuf = Serial1.read();
		r_buffer[number]=readbuf;
		number++;
		
		if(readbuf==0x3B)
		{	
			if(number==3)
			{
				value = (r_buffer[0]<<8) | (r_buffer[1]);
			}
			number=0;
			command=1;

		}
	

	
	}



	if(command)
	{
		command=0;
		switch(value)
		{
  			case _SS:	run(0);break;
			case _US:	run(1);break;
			case _DS:	run(2);break;
			case _LS:	run(3);break;
			case _RS:	run(4);break;
			case _UL:	run(5);break;
			case _UR:	run(6);break;
			case _DL:	run(7);break;
			case _DR:	run(8);break;

		
		}
	
	
	}





}



void forward()
{
	ENA_HIGH; 
	ENB_HIGH;
	IN1_HIGH; 
	IN2_LOW;
	IN3_HIGH; 
	IN4_LOW; 
}

void backward()
{
	ENA_HIGH; 
	ENB_HIGH;
	IN1_LOW; 
	IN2_HIGH;
	IN3_LOW; 
	IN4_HIGH; 
}

void turnleft()
{
	ENA_HIGH; 
	ENB_HIGH;
	IN1_LOW; 
	IN2_LOW;
	IN3_HIGH; 
	IN4_LOW; 
}

void turnright()
{
	ENA_HIGH; 
	ENB_HIGH;
	IN1_HIGH; 
	IN2_LOW;
	IN3_LOW; 
	IN4_LOW; 
}

void stopcar()
{
	ENA_LOW; 
	ENB_LOW;
	IN1_LOW; 
	IN2_LOW;
	IN3_LOW; 
	IN4_LOW; 
}

void run(int direct)
{
	switch(direct)
	{
		case 0: 
				IN1_LOW; 
				IN2_LOW;
				IN3_LOW; 
				IN4_LOW; 
				analogWrite(ENA,0);
				analogWrite(ENB,0);
				break;
		case 1: 
				IN1_HIGH; 
				IN2_LOW;
				IN3_HIGH; 
				IN4_LOW; 
				analogWrite(ENA,LOWSPEED);
				analogWrite(ENB,LOWSPEED+30);
				break;
		case 2:
				IN1_LOW; 
				IN2_HIGH;
				IN3_LOW; 
				IN4_HIGH; 
				analogWrite(ENA,LOWSPEED-15);
				analogWrite(ENB,LOWSPEED+40);
				break;		
		case 3:
				IN1_LOW; 
				IN2_LOW;
				IN3_HIGH; 
				IN4_LOW; 
				analogWrite(ENA,0);
				analogWrite(ENB,LOWSPEED+50);
				break;		
		case 4:
				IN1_HIGH; 
				IN2_LOW;
				IN3_LOW; 
				IN4_LOW; 
				analogWrite(ENA,LOWSPEED);
				analogWrite(ENB,0);
				break;	
		case 5: 
				IN1_HIGH; 
				IN2_LOW;
				IN3_HIGH; 
				IN4_LOW; 
				analogWrite(ENA,LOWSPEED);
				analogWrite(ENB,HIGHSPEED);
				break;
		case 6:
				IN1_HIGH; 
				IN2_LOW;
				IN3_HIGH; 
				IN4_LOW; 
				analogWrite(ENA,HIGHSPEED);
				analogWrite(ENB,LOWSPEED);
				break;		
		case 7:
				IN1_LOW; 
				IN2_HIGH;
				IN3_LOW; 
				IN4_HIGH; 
				analogWrite(ENA,LOWSPEED);
				analogWrite(ENB,HIGHSPEED);
				break;		
		case 8:
				IN1_LOW; 
				IN2_HIGH;
				IN3_LOW; 
				IN4_HIGH; 
				analogWrite(ENA,HIGHSPEED);
				analogWrite(ENB,LOWSPEED);
				break;		
	
	}

}

Credits

Mike86

15 projects • 13 followers

Joystick Wireless Remote Control Car

Things used in this project

Hardware components

Story

Set Iteaduino BT

Construct Car Kit

Play the Car with Joystick

Schematics

Schematics of Iteaduino BT

Schematics of Itead Joystick Shield

Schematics of Mboard

Schematics of BT Bee

Code

Untitled file

Credits

Mike86

Comments

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Joystick Wireless Remote Control Car

Joystick Wireless Remote Control Car

Things used in this project

Hardware components

Story

Set Iteaduino BT

Construct Car Kit

Play the Car with Joystick

Schematics

Schematics of Iteaduino BT

Schematics of Itead Joystick Shield

Schematics of Mboard

Schematics of BT Bee

Code

Untitled file

Credits

Mike86

Comments

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