Tuesday, 25 September 2018

Week 27 (FYP 2): Final test for the project

OBJECTIVE: 1. To test the full project.
            2. To take a video for the project.

METHODOLOGY: 1. Turn on the personal hotspot at smartphone so that the blynk apps can be connected.
             2. Connect the nodemcu with power supply but i used powerbank.
          3. Set the timer at the blynk.

RESULTS:

Video 1: Final test for the project

ANALYSIS & DISCUSSION: I tested the full project as a preparation for my industrial day. In the video, we can see that my project is well function. When the soil is dry, the sensor will detect it and it will triggered the motor. The led of the sensor is turned on when the sensor detected the water. 

CONCLUSION: All the objectives are achieved. Next i can focus on the poster for my presentation. 

Thursday, 20 September 2018

Week 26 (FYP 2): Use Adapter as a power supply

OBJECTIVE: 1. To use adapter as a power supply for this project.
          2. To have a suitable voltage that can make the project well function.

METHODOLOGY: 1. I buy adapter through online to make it as a power supply.
           2. Connect the adapter with the relay and the motor.
            3. Adjust the voltage of the adapter to 10 V.

RESULT:

Figure 23: Adapter as a power supply

Figure 24: Cable used for the adapter


ANALYSIS & DISCUSSION: Before this i used battery 9V as a power supply. But then when i met my supervisor, he advised me to use adapter as a power supply. So i decided to change the supply from a battery to the adapter. The adapter supply 12 V. I adjust the voltage of the adapter to 10 V. This is because when i use the bigger voltage, the motor moves so fast and it caused the water to come out fast. The sensor cannot detect well when the water come out too fast. That is why i adjust the voltage to 10 V.

CONCLUSION: Finally for the project, i used adapter as the power supply to replace the battery. The objectives have been achieved.

Wednesday, 12 September 2018

Week 25 (FYP 2): Set up Blynk Apps

OBJECTIVE: 1. To create an account of blynk on the smartphone.
           2. To set up the controllers that i need in the blynk.
           3. To test the apps with the project.

METHODOLOGY: 1. Download the Blynk application at app store with free.
             2. Register and create an account at blynk using the title 'Plant Watering System'.
             3. Identify the controllers that needed for this project, so that, i can cotrol the system using the blynk app.              4. Test the app with the coding and the hardware.

RESULTS: 
Figure 22: Blynk app on the smartphone

ANALYSIS & DISCUSSION: At the blynk apps, i set up the timer for morning and evening/night. Users can easily set their time to water the plants in case they missed to water their plants during the day. The sensor will detect the moisture of the plants and notify the users. I set the notifications on the apps so that users will easily notified if their plants need water. When the led of sensor is turned on, it means that the sensor detect the water. 

CONCLUSION: I have create an account for blynk and the system funcion well. All objectives are achieved for this week.