WEEK 9 FYP2

WEEK 9 

DATE: 23/9/2019-27/9/2019

SUPERVISOR: SIR SHAH RIZAILLI BIN MUKHTAR

👉 PREPARE HARDWARE

• Firstly, I create the design of the prototype which I decided to make it into rectangular shape. The design is like the figure shown below.

Figure 1: Prototype design

• The length will be 15cm, the height is 2cm and the width is 4cm. 
• The length of the box is quite longer because I need two battery of 9V to power on the board for arduino and wifi module.
• The design is smaller than the actual plan. Before this, I plan to use arduino uno and Wemos Wifi module to program the circuit. The size of these two board is quite bigger. So, I decided to change the Arduino Uno board to Arduino Nano board while Wemos Wifi module to Nodemcu board. With these size of the board, it can fit into the box in Figure 1.

Figure 2: Arduino Uno to Arduino Nano

Figure 3: Wemos Wifi Module to Nodemcu 

• The size of the filtering circuit also is changed to a smaller one. The circuit is being soldered on the strip board. I took about 1 to 2 hours to finish the soldering circuit because it is quite difficult to solder such a small circuit. After finish, I check the connection of the pins of component using multimeter. This is to make sure the circuit is still functioning after soldering the circuit.

Figure 4: Soldered filtering circuit

• Figure 5 below shows the inside looks of the prototype.

Figure 5: Component in the box