Week 3 - Final Year Project

Week 3 

On this week my partner and i search some components that we need to build our automatic fish feeder's circuit .So we have go to Jalan Pasar, Kuala Lumpur and buy some of it .

So these are the components that we buy, which are IC 555, IC 4060, DC motor 6V, resistors, capacitors, LEDs and some jumpers/wires including PCB board and also a breadboad .After buy all this, we calculate and make a suitable circuit for our automatic fish feeder .

Week 2

Introduction : Automatic Fish Feeder

To : Sir Abdul Halim Abd Rahman

Description about the project :

This project is to design a prototype of automatic fish feeder by using logo soft program .My partner and I are being ask to create a fish feeder that can be set the time to feed the fish. Although ,we have been supervise by Sir Halim to search and create a circuit that can be program by the LOGO soft. The program is the main objective in this project because the program will be set, what time should be give to the circuit to feed the fish. In addtion, we still have to use timer and microcontroller to give pulses to the motor through out the relay. Thus, process of this circuit will be complete by using program ,timer and microcontroller .

We have been searching for weeks to gain some of the information on how to design an automatic fish feeder. These are some example of an automatic fish feeder without using LOGO soft :

http://www.instructables.com/id/Automatic-Aquarium-Feeder/

http://www.electronics-lab.com/projects/misc/010/

So here we can build up the automatic fish feeder circuit .We also doing research about the timer that we are using in this circuit .Which is IC 555 .Here are the description about the timer :

http://www.555-timer-circuits.com/pin-configuration.html

So we know that the function of the timer give pulses to the microcontroller and then go to the motor to operate it. Other than that, relay and capacitor also required in this circuit, same as the resistor to operate as decrease the value of current enter to the component or go through the circuit .

This are some of examples of the working system that we found : 

The circuit is using regular timer (IC 555) sending pulse to 2 cascaded counters of CMOS 4017. The output pin from the last counter is then fed to the capacitor and-relay in series. (Remember: a relay owns its own resistance) which consequently trigger the relay for some time to turn on mechanics section. After the capacitor is about to be fully loaded, the relay shuts off. From here we could figure out that the bigger the capacity the longer the relay connects which then causes the motor works to expel pellets centrifugally. The resistor functions to unload the capacitor so that the capacitor is then ready to be loaded for the next cycle. 
Time interval if the IC 555 keeps following the formula:

T(555) = 1,1 x R x C

For short, if we set the timer T = 3 minutes, the both counters will multiply the time to be 10 x 10 = 100 times. So the total time intervals would be T = 3 minutes x 10 x 10 = 300 minutes = 5 hours. To change the time intervals simply is by changes/turning R-Var and for the pellet quantity is by changing C-Var size.

So, that's all for now. Thanks for who shared the information above and we will update more about our final year project next week. 

Please give us a comment to motivate in doing this project :)

Week 1

Hi !!
Welcome to our blog .
This is our first time using blog to make a report for our final year project.

Firstly, I would like to introduce my partner and I.

My name is Muhamad Utbah and my partner name is Muhammad Akram. My partner and I study in University Kuala Lumpur British Malaysian Institute and still pursuing my diploma in eletrical and electronic. This is an official blog for my final project. And you're invited to visit and do comment .

Thank you !