Final Year Project 2(Hardware) Week11

Title: Troubleshoot and design the new circuit for MicroController

Objectives:

• To create new PCB for Relay and MicroController circuit
• Create PCb by using UV technique

Procedure:

• After so many of troubleshoot, the MicroController circuit are having a bigger problem due to the short circuit.
• Create the new layout of PCB by UV style and etching a new circuit to satisfy the problem

etching using sodium hydrochloride

• After that it needs to be etching by using ferric chloride. Those steps for etcing by using ferric chloride are same before this post.

After etching

After drill

Result and Analysis:

• New Microcontroller circuit are done and function well. The LCD are replace with the new one.
• The relay circuit are also etching with the new one to make sure that the connction for PCB are success enough.

new design relay PCB

Conclusion:

• The objectives to create a new PCB design are achieve. The main reason to create new PCB are easy to troubleshoot and can compare the effectiveness of the circuit between old and new PCB design.