Published August 8, 2019

The TCP Packet Badge

A badge that features an entire TCP packet design with funky LED show and an "Internet Explorer" mode that slows all of it down.

IntermediateFull instructions provided5,625

Things used in this project

Hardware components

ATmega8A

LEDs SMD 1206 Package

Resistors SMD 470 Ohm

Coin Cell Battery CR2032

Battery Holder, 2032 x1

Slide Switch, SPDT-CO

Male-Header 10 Position 2 Row (0.1") Right Angle

Jumper wires (generic)

SparkFun Tiny AVR Programmer

Software apps and online services

Microchip Studio

Hand tools and fabrication machines

Soldering iron (generic)

Story

The Design

I was asked by NotSoSecure to think of a badge that makes TCP packets cool and was offered brownie points if there's cool functionality to it.

We had the badge idea instantly to round the TCP packet with LEDs and put 8 colourful LEDs in the middle to denote Xmas attack. Initially, we considered the development with only few ICs and basic components. But as we started the development, we realised it'd be much cooler if badge has ability to reprogram. And thus, we rewrote entire schematics with ATmega8A at its heart. And also made a remote for event organisers that triggers the set of Xmas attack LEDs for special event access (crazy NotSoSober parties).

So once we fixed on a simple yet elegant design, we experimented with few badge colour combinations.

1 / 3 • 5 vibrant colours...

So we picked black PCB + red LED combination for the main badge. And inverted the colour combination for the remote badge.

The Working

Badge comes with circular LED pattern builtt-in. To enable the Xmas attack LEDs, organisers can use remote with pogo pins and with a click of button, it passes a set of code to the ATtmega8A and it starts glowing Xmas attack LEDs. The remote also comes with a "deauthorize" key that will remove the Xmas attack LEDs.

The Internet Explorer Mode

We all know that hackers absolute love Internet Explorer (for all sorts of reasons). So we added a tribute to our favourite browser. The LEDs move slow when its enabled.

Thank you, IE.

Reprogramming the TCP badge

Here's the pinout of the badge:

To access the pins easily, one can solder right angle male headers on rear side of the badge.

1 / 2

And then using jumper wires, connect the badge to ISP Programmer using their corresponding pins.

1 / 2

Launch Atmel Studio (or AVR studio) to program the badge. If you're curious enough, you can write your own code and test how it goes on the badge. Or you can use one of the 3 LED patterns codes given below and experiment with it by adding your own bits to the code.

Once that's done, all you've to do is upload the hex file to the ATmega8A. You can use Atmel Studio if it supports your programmer. If not, there are many softwares available that'll push your code to the ATmega8A.

Atmel Studio device programming

I hope that this badge will encourage hackers to experiment with the code and test out the endless possible combinations.

Feel free to reach out in case of any issues or if you've any suggestions to shoot.

#include<avr/io.h>
#include<util/delay.h>
#include<avr/interrupt.h>

int a=0;
//typedef unsigned char byte;
volatile int x=0;
void delay1()
{
	_delay_ms(50);
}
void delay2()
{
	_delay_ms(10);
}

void uart_send (unsigned char d)
{
	while((UCSRA & 0x20)==0)
	 {
	 }
	 UDR=d;
}
unsigned char uart_rec(void)
{
	while (!(UCSRA & (1<<RXC)));
	return UDR;
}
void uart_string(char *data)
{
	while(*data)
	{
		uart_send(*data);
		data++;
	}
}

void init_uart(void)
{
   UCSRA |= (1<<U2X) |(1<<RXC);
   UCSRB |= (1<<RXCIE)|(1<<TXEN)|(1<<RXEN);
   UBRRL=12; 	
}



ISR(USART_RXC_vect)
{	
	x=uart_rec();
}

	
int main()
{
	
	init_uart();
	DDRB=0b11111111;
	DDRC=0b11111111;
	DDRD=0b11101110;
	
		while(1)
		{
			 sei();

			if(bit_is_set(PIND,PD4) && (x=='A'))

			{    
			    
		             PORTC |=(1<<4);
				     delay1();
					 PORTC &= ~(1<<4);
					 delay1();
					 PORTC |=(1<<3);
					 delay1();
					 PORTD |=(1<<6);
					 delay1();
					 PORTC &=~(1<<3);
					 delay1();
					 PORTD &=~(1<<6);
					 delay1();
			   	    PORTC |=(1<<2);
					 delay1();
					 PORTD |=(1<<7);
			    	 delay1();
					 PORTC &=~(1<<2);
					 delay1();
				     PORTD &=~(1<<7);
			    	 delay1();
					 PORTC |=(1<<1);
					 delay1();
					 PORTB |=(1<<0);
					 delay1();
					 PORTC &=~(1<<1);
					 delay1();
					 PORTB &=~(1<<0);
					 delay1();
					 PORTC |=(1<<0);
					 delay1();
					 PORTB |=(1<<1);//
			    	 delay1();
					 PORTC &=~(1<<0);
					 delay1();
					 PORTB &=~(1<<1);
			    	 delay1();
					 PORTD |=(1<<5);
				     delay1();
					 PORTB |=(1<<2);
					 delay1();
					 PORTD &=~(1<<5);
				     delay1();
					 PORTB &=~(1<<2);
					 delay1();
					 PORTD |=(1<<3);
					 delay1();
					 PORTB |=(1<<3);
				     delay1();
					 PORTD &=~(1<<3);
					 delay1();
					 
					 PORTB &=~(1<<3);
				     delay1();
					 PORTC |=(1<<5);
				     delay1();

					 PORTB |=(1<<4);
					 delay1();
					 PORTC &=~(1<<5);
				     delay1();
					 PORTB &=~(1<<4);
					 delay1();
					  PORTB |=(1<<6);
				     delay1();
					 PORTB &=~(1<<6);
				     delay1();
					 PORTB |=(1<<7);
					 delay1();
					 PORTB |=(1<<5);
					 delay1();
					 PORTB &=~(1<<7);
					 delay1();
					 PORTB &=~(1<<5);
					 delay1();
				 
			}
		
                        else if(bit_is_set(PIND,PD4) && (x=='D'))
			{
			      
				 PORTC |=(1<<4);
			     delay1();
				 PORTC |=(1<<3);
				 delay1();
				 PORTC |=(1<<2);
				 delay1();
				 PORTC |=(1<<1);
				 delay1();
				 PORTC |=(1<<0);
				 delay1();
				 PORTD |=(1<<5);
			     delay1();
				 PORTD |=(1<<3);
				 delay1();
				 PORTC |=(1<<5);
			     delay1();
				 PORTB |=(1<<6);
			     delay1();
				 PORTB |=(1<<7);
				 delay1();

				 PORTB &=~(1<<7);
				 delay1();
				 PORTB &=~(1<<6);
			     delay1();
                 PORTC &= ~(1<<5);
				 delay1();
				 PORTD &=~(1<<3);
				 delay1();
				 PORTD &=~(1<<5);
			     delay1();
				 PORTC &=~(1<<0);
				 delay1();
				 PORTC &=~(1<<1);
				 delay1();
				 PORTC &=~(1<<2);
				 delay1();
			     PORTC &=~(1<<3);
				 delay1();
				 PORTC &= ~(1<<4);
				 delay1();
				 							 
			}

			else if(bit_is_clear(PIND,PD4))
			{
			
				PORTC=0b00000000;
				PORTD=0b00000000;
				PORTB=0b00000000;

	    
			}
			else
			{
				PORTC=0b00000000;
				PORTD=0b00000000;
				PORTB=0b00000000;
			}
		}
}

#include<avr/io.h>
#include<util/delay.h>
#include<avr/interrupt.h>

int a=0;
//typedef unsigned char byte;
volatile int x=0;
void delay1()
{
	_delay_ms(10);
}
void delay2()
{
	_delay_ms(10);
}

void uart_send (unsigned char d)
{
	while((UCSRA & 0x20)==0)
	 {
	 }
	 UDR=d;
}
unsigned char uart_rec(void)
{
	while (!(UCSRA & (1<<RXC)));
	return UDR;
}
void uart_string(char *data)
{
	while(*data)
	{
		uart_send(*data);
		data++;
	}
}

void init_uart(void)
{
   UCSRA |= (1<<U2X) |(1<<RXC);
   UCSRB |= (1<<RXCIE)|(1<<TXEN)|(1<<RXEN);
   UBRRL=12; 	
}



ISR(USART_RXC_vect)
{	
	x=uart_rec();
}

	
int main()
{
	
	init_uart();
	DDRB=0b11111111;
	DDRC=0b11111111;
	DDRD=0b11101110;
	
		while(1)
		{
			 sei();

			if(x=='A')

			{        PORTD |=(1<<6);
					 delay1();
					 PORTD &=~(1<<6);
					 delay1();
					 PORTD |=(1<<7);
			    	 delay1();
					 PORTC |=(1<<4);
				     delay1();
					 PORTD &=~(1<<7);
			    	 delay1();
					 PORTC &= ~(1<<4);
					 delay1();

					 PORTB |=(1<<0);
					 delay1();
					 PORTB &=~(1<<0);
					 delay1();
					 PORTB |=(1<<1);
			    	 delay1(); 
					 PORTC |=(1<<3);
					 delay1();
					 PORTB &=~(1<<1);
			    	 delay1();
					  PORTC &=~(1<<3);
					 delay1();

					 PORTB |=(1<<2);
					 delay1();
					 PORTB &=~(1<<2);
					 delay1();
					 PORTB |=(1<<3);
				     delay1();
					 PORTC |=(1<<2);
					 delay1();
					 PORTB &=~(1<<3);
				     delay1();
					 PORTC &=~(1<<2);
					 delay1();

					 PORTB |=(1<<4);
					 delay1();
					 PORTC |=(1<<1);
					 delay1();
					 PORTB &=~(1<<4);
					 delay1();
					 PORTC &=~(1<<1);
					 delay1();

					 PORTB |=(1<<5);
					 delay1();
					 PORTC |=(1<<0);
					 delay1();
					 PORTB &=~(1<<5);
					 delay1();
					 PORTC &=~(1<<0);
					 delay1();			 	 
			}
		
            else if(x=='D')
			{
			      PORTB |=(1<<5);
				  delay2();
				  PORTB &=~(1<<5);
				  delay2();
				  PORTB |=(1<<4);
				  delay2();
				  PORTB |=(1<<7);
				  delay2();
				  PORTB &=~(1<<4);
				  delay2();
                  PORTB &=~(1<<7);
				  delay2();

				  PORTB |=(1<<3);
			      delay2();
				  PORTB &=~(1<<3);
			      delay2();
				  PORTB |=(1<<2);
				  delay2();
				  PORTB |=(1<<6);
			      delay2();
				  PORTB &=~(1<<2);
				  delay2();
				  PORTB &=~(1<<6);
			      delay2();

				  PORTB |=(1<<1);
		    	  delay2();
				  PORTB &=~(1<<1);
		    	  delay2();
				  PORTB |=(1<<0);
				  delay2();
				  PORTC |=(1<<5);
			      delay2();
				  PORTB &=~(1<<0);
				  delay2();
				  PORTC &=~(1<<5);
			      delay2();

				  PORTD |=(1<<7);
		    	  delay2();
				  PORTD |=(1<<3);
				  delay2();
				  PORTD &=~(1<<7);
		    	  delay2();
				  PORTD &=~(1<<3);
				  delay2();
				  
				  PORTD |=(1<<6);
				  delay2();
				  PORTD |=(1<<5);
			      delay2();
				  PORTD &=~(1<<6);
				  delay2();
				  PORTD &=~(1<<5);
			      delay2();	
			}
			else
			{
			
				PORTC=0b00000000;
				PORTD=0b00000000;
				PORTB=0b00000000;

	    
			}
		}
}

#include<avr/io.h>
#include<util/delay.h>
#include<avr/interrupt.h>

int a=0;
//typedef unsigned char byte;
volatile int x=0;
void delay1()
{
	_delay_ms(50);
}
void delay2()
{
	_delay_ms(10);
}

void uart_send (unsigned char d)
{
	while((UCSRA & 0x20)==0)
	 {
	 }
	 UDR=d;
}
unsigned char uart_rec(void)
{
	while (!(UCSRA & (1<<RXC)));
	return UDR;
}
void uart_string(char *data)
{
	while(*data)
	{
		uart_send(*data);
		data++;
	}
}

void init_uart(void)
{
   UCSRA |= (1<<U2X) |(1<<RXC);
   UCSRB |= (1<<RXCIE)|(1<<TXEN)|(1<<RXEN);
   UBRRL=12; 	
}



ISR(USART_RXC_vect)
{	
	x=uart_rec();
}

	
int main()
{
	
	init_uart();
	DDRB=0b11111111;
	DDRC=0b11111111;
	DDRD=0b11101110;
	
		while(1)
		{
			 sei();

			if(x=='A')

			{   
			     PORTC |=(1<<4);
			     delay1();
				 PORTC |=(1<<3);
				 delay1();
				 PORTC |=(1<<2);
				 delay1();
				 PORTC |=(1<<1);
				 delay1();
				 PORTC |=(1<<0);
				 delay1();
				 PORTD |=(1<<5);
			     delay1();
				 PORTD |=(1<<3);
				 delay1();
				 PORTC |=(1<<5);
			     delay1();
				 PORTB |=(1<<6);
			     delay1();
				 PORTB |=(1<<7);
				 delay1();

				 PORTC &= ~(1<<4);
				 delay1();
				 PORTC &=~(1<<3);
				 delay1();
				 PORTC &=~(1<<2);
				 delay1();
				 PORTC &=~(1<<1);
				 delay1();
		         PORTC &=~(1<<0);
				 delay1();
				 PORTD &=~(1<<5);
			     delay1();
				 PORTD &=~(1<<3);
				 delay1();
				 PORTC &= ~(1<<5);
				 delay1();
				 PORTB &=~(1<<6);
			     delay1();
				 PORTB &=~(1<<7);
				 delay1();	 	 
			}
		
            else if(x=='D')
			{
			      
				 PORTC |=(1<<4);
			     delay1();
				 PORTC |=(1<<3);
				 delay1();
				 PORTC |=(1<<2);
				 delay1();
				 PORTC |=(1<<1);
				 delay1();
				 PORTC |=(1<<0);
				 delay1();
				 PORTD |=(1<<5);
			     delay1();
				 PORTD |=(1<<3);
				 delay1();
				 PORTC |=(1<<5);
			     delay1();
				 PORTB |=(1<<6);
			     delay1();
				 PORTB |=(1<<7);
				 delay1();

				 PORTB &=~(1<<7);
				 delay1();
				 PORTB &=~(1<<6);
			     delay1();
                 PORTC &= ~(1<<5);
				 delay1();
				 PORTD &=~(1<<3);
				 delay1();
				 PORTD &=~(1<<5);
			     delay1();
				 PORTC &=~(1<<0);
				 delay1();
				 PORTC &=~(1<<1);
				 delay1();
				 PORTC &=~(1<<2);
				 delay1();
			     PORTC &=~(1<<3);
				 delay1();
				 PORTC &= ~(1<<4);
				 delay1();
				 					 
			}
			else
			{
			
				PORTC=0b00000000;
				PORTD=0b00000000;
				PORTB=0b00000000;

	    
			}
		}
}

Credits

Abhinav SP

29 projects • 22 followers

Artist, Hacker, & Entrepreneur. Making hardware learning creative and fun with innovative badges. Founder, Hackerware.io

The TCP Packet Badge

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

The Design

The Working

The Internet Explorer Mode

Reprogramming the TCP badge

Code

Badgepattern3.c

Badgepattern1.c

Badgepattern2.c

Credits

Abhinav SP

Comments

Embed the widget on your own site

The TCP Packet Badge

The TCP Packet Badge

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

The Design

The Working

The Internet Explorer Mode

Reprogramming the TCP badge

Code

Badgepattern3.c

Badgepattern1.c

Badgepattern2.c

Credits

Abhinav SP

Comments

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