Week 7

Title of the activity: Construct and design overall circuit on the PCB board

Objective:

• To design the interfacing circuit between PIC circuit and Output circuit

Content/Procedure:

• Design circuit by using protel design system software
• Print the design on the transparent paper or stick paper
• Etching process
• Drill and solder all component on the circuit

Protel Design System software

Design circuit

• PIC circuit & Output circuit

Print the design

• PIC circuit & Output circuit

Etching process

• Step 1 : Remove material from such as unwanted copper from the PCB surface to achieve circuit design requirements.

• Step 2 : Remove the black ink on the PCB board. The black ink has remove in order to solder the components

Drill and solder all components on the circuit

Analysis:

While doing this circuit, the most important thing that must be take note is the actual design of the component. If the design is too small, the component cannot be match with the circuit. From the picture above, we can see on the circuit a lot of jumper. It is because, the connection of the circuit while doing etching method is disconnected and to joint it back, we use jumper and testing again with multimeter.

Conclusion:

The circuit is show the interface between PIC circuits with output circuit. While the design, construct on PCB board, etching process and soldering all the components have done, the next process is to testing the circuit which is the circuit is function properly based on expected. So, this part has done and the objective is achieved.