WEEK 5: 30TH AUGUST 2012

Title             : Designing the circuit connection using Proteus 7                             Professional and construct on the breadboard.

Objectives   : 1) To design the circuit diagram for Smart Chicken                              Coop.

                      2) To construct the circuit on the breadboard and                               been tested.

Procedure   : 1) The Proteus 7 Professional software had been                              installed.

                           Figure 1: Proteus 7 Professional

Results      : 1) The Smart Chicken Coop circuit diagram had                                  been design using Proteus 7 Professional.

Figure 2: Smart Chicken Coop schematic diagram

                  2) The circuits had been constructed on the                                         breadboard to test the connection.

Figure 3: Circuit that been constructed on the breadboard

Conclusion: Designing the schematic diagram using Proteus 7                          Professional is very important before testing the                              circuit on the breadboard. If the polarity was wrong,                        there will be short circuit and the components might                        burn.

WEEK 4: 22ND AUGUST 2012

Title             : Make some changes on the project block diagram.

Objectives  : 1) To finalize the project block diagram.

                      2) To buy all the components needed.

Procedure  : 1) The project block diagram had been change due                            to all the research that been made in FYP 1.

                      2) The components had been listed and been                                      bought to implement the circuit.

Results      : 1) The project block diagram had been finalized.

Figure 1: Project block diagram

                    2) All the components needed had been listed and                             been bought.

Figure 2: Project block diagram

Conclusion: Choosing the right components are very important in                      order to ensure the circuits function well.

WEEK 3: 15TH AUGUST 2012

Title             : Make some changes on the project component.

Objective     : 1) To change the LM35DZ to thermistor.

Procedure   : 1) The LM35DZ have to be change to thermistor.

Results      : 1) The thermistor output is non linear which is                                      suitable for this project.

Thermistor resistance vs temperature

                    2) Thermistor or thermal resistor is thermal sensitive                           resistor. It means its resistance changes with                                   temperature. This change in resistance character                           divides the thermistor into two types, depending in                         the way it responds to the temperature.

                    3)   Positive Temperature Coefficient thermistor.                               (PTC)

               ·        thermistors exhibit an increase in electrical                        resistance when subjected to an increase in                      body temperature

                    4)   Negative Temperature Coefficient thermistor.                            (NTC)

              ·        thermistors exhibit a decrease in electrical                         resistance when subjected to an increase in                     body temperature

Conclusion: The thermistor had been used to measure                                      temperature for Smart Chicken Coop because it is                          inexpensive, rugged, reliable and respond quickly.                          The thermistor that will be use is NTC 10k.

 Thermistor NTC 10k

WEEK 2: 8TH AUGUST 2012

Title              : Make some changes on the project component.

Objective     : To change the dc gear motor to solenoid motor.

Procedure   : The dc gear motor have to be change to                                          solenoid motor because it will be use to open                                  and close the gate of the food supplied by the                                main tank to be refill in the food container inside                              the coop.

                     Figure 1: Illustration the solenoid motor to push/pull the gate

Results      : 1) The difference between a solenoid and a motor is                          that a solenoid is spring loaded and cannot rotate.

 Figure 2: Solenoid is spring loaded and cannot rotate

2)   Solenoid basic operation
Inside a solenoid is motor wire coiled in a special way. When an electric current been sent through the wire (energized), a magnetic field is created. The inner shaft of a solenoid is a piston like cylinder made of iron or steel, called the plunger or slug (equivalent to an armature). The magnetic field then applies a force to this plunger, either attracting or repeling it. When the magnetic field is turned off, a spring then returns the plunger to its original state.

Figure 3: Solenoid basic operation

Conclusion: The dc gear motor had to been change to solenoid                        motor.