(FYP 2) Week 5 - Workshop 3 (Presentation and Demonstration/Defense Proposal), Integration All Component Based on Circuit Diagram & Blynk Setup

This week, the development process of my FYP continued by assembling all the input components, microcontroller, and output components into a complete system according to the circuit diagram that was created, despite some changes and additions to the components. The coding for each input and output component was integrated, organized, and managed according to the designed operation flow chart. I also worked on setting up Blynk IoT Cloud for my website and application. This involved creating web and mobile dashboards, configuring data streams, and setting up events for notifications. I changed from Arduino IoT Cloud to Blynk IoT Cloud because the coding is simpler, the setup is easier, and it has a notification feature.

After uploading the code to the microcontroller, several errors occurred frequently. I investigated the error issues to identify their causes, which were resolved by correcting the faulty parts of the code. Eventually, there were no more error problems, and the system could be activated. However, after conducting multiple functional tests of the project, numerous issues arose when the system was powered on. For example, the sensor parameter readings became increasingly unstable, resulting in incorrect functionality or unstable operations. For instance, the readings from either the MQ135 or LM393 sensors would constantly exceed the set threshold with instability, even though the testing for air and sound pollution on the sensors had not been conducted. Returning to normal levels would remain challenging when the reading value sometimes exceeds the set threshold. Additionally, the GSM module still couldn't send SMS messages to the phone number specified in the code. 

The components may not receive the required voltage levels or stable power supply, resulting in reduced performance, unpredictable behaviour, and inaccurate readings. However, the unstable sensor data was still successfully sent to the Blynk IoT Cloud through the built-in Wi-Fi module in the microcontroller. This enabled me to remotely monitor and control my device or system through the web and mobile interfaces. This preparation provided real-time data visualization, allowing me to make informed decisions and receive notifications when specific events occur. On Wednesday of this week, a workshop session was conducted, presented by my supervisor, Madam Azliza. The session aimed to provide information and explanations about the presentation and demonstration/defense proposal.