week 15-18: Preparation for Submission Components

Submission Components:

Library:
- Hard copy of Final Report with Hard Cover
- Soft copy of:
      * Abstract.txt
      * Final Report.pdf
      * Technical Report .pdf
      * Schematic & Program .rar
      * Poster.jpg
      * Picture.jpg
      *  Video.flv

Upload at http://rps.bmi.edu.my/fyp/submission/S112/Degree/51210209015 :
  - Soft copy of:
      * Abstract.txt
      * Final Report.pdf
      * Technical Report .pdf
      * Schematic & Program .rar
      * Poster.jpg
      * Picture.jpg
      *  Video.flv

Submit at FYP Advisor ( Mr. Tan  Yee Chyan )
- Hard copy of Final Report with Hard Cover
- Claim Receipt

 NOTE: ALL OF THE SOFT COPY CAN BE FOUND AT
http://rps.bmi.edu.my/fyp/submission/S112/Degree/51210209015/index.php?studName=MUHAMMAD%20NADIY%20BIN%20ZAIAAMI&studId=51210209015

week 14: Presentation Day

Presentation Day:
assessor 1: Miss Shairah Wazir
assessor 2: Mr. Zulkifli B Mahmoodin

on presentation day, everything going smoothly .
student can answer the question confidently.
there are a lot of technical question.

Overall Project:

Video:

Poster:

week 13: Problem Occour

1- Capacitor
At the reset button, it have to make a parallel connection with the 220pF (104) ceramic capacitor. It is because to prevent multiple pulse give to the PIC16F877A. If the users press the reset button once, user has to wait the capacitor to be charged up before the second press. It is the law of capacitor to be charge and discharging. The knowledge of electronic components that student learn on previous semester have been applied.

2- LED and Resistor Priority
Simulation and actual device is not same. On the simulation, there are no tolerance and there are no disturbance. Everything are considered to be perfect. On Figure 3.9 there are a mistake that student do. For all know, the function of resistor is to prevent over current to LED. In this case, the circuit have to modified manually to avoid from making a new PCB. The arrangement of resistor and LCD are changed.

3- LCD 
There are many type if 16x2 LCD. Each type of LCD have their own datasheet and connection. LCD must be grounded according to it’s pin. Wrong connection will display nothing except black and white screen on LCD. At first, student buy a VCM162A LCD. The result of the system is the LCD display a creepy character but it is working great on the other type of LCY which is JHD162A. With the insufficient time, the new LCD are replaced.

 

week 12: Soldering

Equipments:
1- soldering Iron
2- Sucker
3- wet spounge
4- hand drill

step:
1- drill the pcb stand to make a task easier (drilling&soldering)
2- put the PCB stand
3- start drill the hole for components
4- solder all of the components according to the circuit design

week 11: Final PCB layout & Atching

 Step to make a PCB:
1- print layout on Oscilloscope Plastic ( black and white)
2- iron the plastic on PCB board
3- adjust with marker the spot that did not have connection
4- boil a plain water
5- put an atching liquid in the Tupperware and add some hot water
6- wait for few munite
7- shake the Tupperware
8- wash the board with plain water
9- while washing the board with plain water, rub sand paper to remove the black ink from plastic and marker ink
10- finish

week 10: Final Program

#include <16f877A.h>
#fuses HS,NOLVP,NOWDT,PUT
#use delay(clock=20000000)
#include <lcd.c>
#define GREEN_LED PIN_B2
#define YELLOW_LED PIN_B1
#define RED_LED PIN_B0
#define PUSH_BUTTON PIN_A0
#define PUSH_BUTTON2 PIN_A1
#define PUSH_BUTTON3 PIN_A2
#define BUZZER PIN_B4

#INT_RB //Interrupts from Pins B4

void RB_ISR( )

{  disable_interrupts(INT_RB);
    while (!input(PIN_B7)) //Detect Pin B7

      {  lcd_init( );
                {   lcd_putc("\fHELP!!!!");
                     delay_ms(5);
                }

         output_low(BUZZER);
         delay_ms (200);
         output_high(BUZZER);
         delay_ms (200);
         output_low(BUZZER);
         delay_ms (200);
      }

     clear_interrupt(INT_RB);
     enable_interrupts(INT_RB);

}

void wait_for_one_press( )

{  while(!input(PUSH_BUTTON)) ;
   while(input(PUSH_BUTTON)) ; //Wait for one press
}

void light_one_led(int led)

{   output_high(RED_LED);
   output_high(YELLOW_LED);
   output_high(GREEN_LED);

        switch(led)
                 {   case 0 : output_low(RED_LED); break;
                      case 1 : output_low(YELLOW_LED); break;
                      case 2 : output_low(GREEN_LED); break;
                  }

}

   void main()

{ int count = 0;
     set_tris_b(0xFF); // set up port b
      port_b_pullups(TRUE);  //Enable pull up resistors for Port B
      clear_interrupt(INT_RB);
      enable_interrupts(INT_RB); //Enable Port B4-7 interrupts
      enable_interrupts(GLOBAL);  //Enable all interrupts
      EXT_INT_EDGE(H_TO_L); // interrupt on falling edge

      lcd_init( );
      {  lcd_putc("\fmy name is NADIY\npush to JUMP");
         delay_ms(50);
      }

{  wait_for_one_press();
         light_one_led(0);
         delay_ms(1000);
         light_one_led(1);
         delay_ms(1000);
         light_one_led(2);
         delay_ms(1000);

      }    

while(TRUE)
{    
     lcd_init( );
     lcd_putc("\fWelcome to FYP\n");
    printf (lcd_putc,"LAP = %U",count);
    delay_ms(300);
     wait_for_one_press( );
    count++;
    if(count>99)
     count = 0;
}
}

week 9: Design of Power Supply

Microcontroller, LCD, LED and relay driver chip need a 5V dc. So the power supply for electronic circuit was 5V dc. Microcontroller needs 5V dc to activate the chip and provide signal.  Power supply from 9V dc battery regulated by voltage regulator  to 5V dc as required for the circuit.

Voltage must be regulated to 5V dc by using voltage regulator LM 7805. This voltage regulator can withstand of input high from 35V dc regulate to produce an output of 5V. It also requires heat sink to protect the device from damage due to overheat. When it was operated, it produces a lot of heat.