WEEK 11

Title:
Final Year Project briefing. 



Objective:
To gain knowledge from the briefing.



Contents / Procedures: 
For this week, there is Final Year Project briefing at TTL 1. The committee is Dr  Mohd Khairil bin Rahmat and Mr Shamsul Zahari bin Shahidin. Some point of the briefing is on the T-Shirt, claiming budget and submission of the report for FYP Sem 2 and Diploma students. Plus, to reminds the students on the presentation day for Degree Sem 1 and Engineers Day for Degree Sem 2 and Diploma students.

WEEK 10

Title: Circuit undercover and still under progress.

WEEK 9

Title: Troubleshooting all circuit


Objectives:
To analyse the circuit performance.


Content / Procedure:
All circuit have been  brazing.
Do a component test. Collect an old component that have been used in order to reduce a cost.
Try to do some test towards circuit to analyse the performance.


Result and Analysis:
Have some circuit have problem because of some component burn or damage.

WEEK 8

Title: Construct the circuit.


Objectives: 
> To make a circuit PCB etching and drilling.
> To Test a PCB Inverter circuit.
> To analyse the circuit performance.


Content / Procedure: 
> Prepare a material to do circuit etching.
> Do a component test. Collect an old component that have been used in order to reduce a cost.
> Try to do some test towards etching circuit to analyse the performance.


Result and Analysis:
I'm done a construction for  High Current Inverter Circuit. The circuit is fly-back converter and using 555 timers as an controller.
This testing part was done by using my old equipments that have been used during my studies.
The circuit PCB design and the pictures during etching the inverter circuit.

WEEK 7

Title:
Final Year Project briefing and further research relay.




Objective:
To gain knowledge from the briefing.
To search the related information of the relay.




Contents / Procedures:
For this week, there is Final Year Project briefing at TTL 1. The committee is Dr  Mohd Khairil bin Rahmat and Mr Shamsul Zahari bin Shahidin. Some point of the briefing is on the T-Shirt, claiming budget and submission of the report for FYP Sem 2 and Degree students. Plus, to reminds the students on the presentation day for Degree Sem 1 and Engineers Day for Degree Sem 2 and Degree students.
Internet research has been done in order to know more on the relay.






Results:
Relay







Relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used.
Relays are used where it is necessary to control a circuit by a low power signal or where several circuits must be controlled by one signal.
Current flowing through the coil of the relay creates a magnetic field which attracts a lever and changes the switch contacts. The coil current can be on and off so relays have two switch positions.
The coil of a relay can passes a relatively large current, typically 30mA for a 12V relay, but it can be as much as 100mA for relays designed to operate from lower voltages.
Relays are usually SPDT or DPDT

WEEK 6

Title: Smoke Sensor / Detector(research further device)


Objective: To search the related information of the smoke sensor that will be used in this project.
Contents / Procedures: In order to understand more on the features of this sensor, the internet research has been done.


Results:
Smoke  detector is one of the common devices in a house security system.
As defined by the Wikipedia, smoke detector is a device that detects smoke, typically as an indicator of fire. Most smoke detectors work either by ionization detectors or by photoelectric detectors while others use both detection methods to increase sensitivity to smoke. Usually, in many single family detached and smaller multiple family housing, a smoke sensor is often powered only by a single disposed battery.
 Both ionization and photoelectric detectors are effective smoke sensors. Ionization detectors response more quickly to flaming fires with smaller combustion particles while photoelectric detectors respond more quickly to smoldering fires.
The smoke sensor detects smoke from a fire and sounds an alarm from the buzzer.
The smoke sensor that is under consideration to be used in this project is MQ2 Smoke Sensor. For this project, the smoke sensor will sense the smoke and buzzer will activated when there is an excessive amount of smoke.



This smoke sensor characteristics as below:
Wide detecting scope
Stable and long life
Fast response and high sensitivity
Sensing resistance: 3k ohm - 30k ohm
Suitable to detect smoke, LPG, alcohol and hydrogen
Detects combustible gases and smokes in a range of 300 - 10000ppm
The sensitivity of this sensor can be adjust using potentiometer
Conclusion: This smoke sensor is the device to detect the excessive amount of smoke. For this project, it will send the signal to the micro-controller and from the micro-controller, the signal will be send to the output device which is buzzer.

WEEK 5-Schematic Circuit

GSM Switch is a project to turn on or turn off electrical appliances such as light switching home or anywhere remotely via GSM.

How to turn on equipment by sending SMS '1111' ON 'and switch off the equipment by sending SMS' 0000 GSM Switch will receive instructions either load 1 (L1), load 2 (L2), load 3 (L3) or load 4 (L4). Then the GSM Switch will send the four load status is ONor OFF either. Skematiknya are as follows