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Thursday, March 29, 2012

Week 11



POWER SUPPLY

• The main component is the regulator IC 7805 which serves to convert the input DC voltage 12V to 5VDC.
• 5VDC is the operating voltage used by the PIC, sensor, relay driver, and also in the other circuits
• Diode IN4007 functions as a rectifier
• Resistor 1K ohm function as "Load" which allows a small current through it and then light the LED.
• Capasitor functioa as a "Filter" to produce a clean DC operating voltage (filtering the resulting ripple voltage)

Monday, March 19, 2012

Week10

Switching Fan Circuit

This week I make a switching circuit for the fan. This circuit was tested using MPLAB software 1st to determine whether the pairing I do right or wrong, so after all that I began to etching & soldering circuit and the result like the image below.

MPLAB Circuit

Front View





Rear View

Wednesday, March 14, 2012

Week9

Temperature Sensor

Temperature sensor is a device used to measure the temperature of an object, in my FYP project, I use the LM35 type temperature sensor because it can detect the ambient temperature as the temperature inside a room. after the study has been made from last semester, I purchased a component to be in use and has completed this temperature sensor circuit. I attach below the circuit I have completed the picture I provided for this FYP project.

Diagram






Sensor LM35





Complete Circuit





Front

Rear



link






Thursday, March 8, 2012

Week8

ULTRASONIC MOVEMENT DETECTOR

This week i research & make a circuit for Ultrasonic Movements Detector. After i get some components i buy at jalan pasar, 1st thing i do a etching for this circuit, 2nd i insert components and solder at this circuit, 3rd testing using battery for make sure it function or not, below i attach a circuit, components and complete circuit i do it now.





ULTRASONIC MOVEMENT DETECTOR



Components

Components


Rear View

Front View