WEEK 10

Title of activity

Design Hardware


Aquarium

Regular aquarium before been designed

Mini MAT REMPIT inside the aquarium  !!
First pet for our project experiment!!HAHAHA

Drill the aquarium with Hole Saw for pipe fitting

Water Level Sensor Design

Tools been used

Rod been cutting to make water level sensor

Rod been tied to a holder

Screw the Rod and Holder together

Place the Rod inside aquarium for Water Level Sensor

Turbidity Sensor 

As mention in week 3, Turbidity sensor works by placing water in between LED and LDR.

How it works?
LDR changes it resistor with presence of light. By connecting LDR to analog input of arduino the measure change can be determine. Source HERE.

Now we know how Turbidity Sensor works the only problem is where to design the sensor. There are many possible way to design the sensor include:

• By placing the LDR and LED beside the aquarium tank
• By placing a mirror that can reflect the LED direct to the LDR

Reflected LED by a mirror in the aquarium

• pull out the water by a tube and place it between LDR and LED
• place the LED in the water and LDR be placed beside the aquarium

Lastly we decide to pull the water out by a tube and place it between the LDR and LED.

Cosntruct LDR to Arduino

Turbidty Sensor been designed