WEEK 3

Title of activity

• Produce Gantt chart.
• Research on proposed project.

Objective

• To produce details of fyp project progress on each week.
• To find information that connected to proposed project.

Content

• Produce Gantt chart in Microsoft excel.
• Search in the internet information that related to this project.
• Make sure all the info about the dateline,sent report and the details of exhibition.

Turbidity Sensor

     Turbidity sensor works as a device that measure the cloudiness  of the water whether the water contained suspended particles that make the water turn cloudy or clear. There are many method to read the cloudiness water. One of the method is by running the water between LDR and LED. If the water is cloudy enough it will block LED and the reading from LDR would changed.

For more info go HERE

Datasheet for turbidity sensor 

Water Level Sensor

       

       To drain and fill the water simply just connects the tank with Solenoid and Water Pump. The issue is how to control the water level. Supposedly when start draining water the solenoid will turn on and the water will flow out but, to start refill the water by water pump the solenoid must be closed off otherwise the water will drain straight to solenoid and act just like filtering the water obviously, that not the way for this project.

       To stop the water from keep drain there must be something trigger to send signal to the control unit telling that the water is drain enough the control unit will send signal to solenoid to turn off. After that the motor pump can start its part to refill the water until full. Similarly, there must be something trigger to send signal to control unit telling that the water is full enough so that water pump not continuously on.

      Usually there have been Hi-Lo water level sensors that can do the triggering job in the market. But those sensors quite not necessary because this project is run base on control unit that have build in many advantage. Therefore, from the control unit can be design a trigger circuit as replacement for Hi – Lo water level sensor.