week 13

Title: Making the Presentation Poster

Objective:  To design the poster for the presentation day

Analysis/Discussion: 

As for this week, I need to design a poster for the presentation day to be presented in a week time. The poster will include the objective of the project, project descriptions, methodology, flowchart of the progress, result together with the conclusion and reference. the poster will discuss on the process of making the landmower.  i started with the objective followed by the project descriptions, conclusion and reference. after that, i include the methodology and flowchart and the result to conclude the picture of the process. this one by one step needs to be arranged accordingly as it is very important because it will give a clear picture of my project to the accessors that will evaluate me on the presentation day.

I have made the draft of the poster and show it to my supervisor so that she can give her opinion and suggestion in where I should improve. 

Conclusion:    
In a conclusion, I have finalized the poster and printed it out for the presentation day after my supervisor has satisfied with my work. 

week 12

Title:  Collect data 

Objective:  To make the data from the land mower   

Analysis/Discussion:  As for this week, I have made some testing to make the data as an evidence for the approval from and compare with the calculation.

calculation : 
 P=IV
2 motor dc = 1.6 A
battery capacity = 7.2 Ah
solar panel 12v 10w = 0.83A


 charger :
 7.2/0.83 = 8 hour

discharge :
7.2/1.6 = 5 hour

that in theory calculation result is as expected result. in a practical way, I got a discharge in 3 hours, This is because in the calculation I did not include the motor for the cutter and also when the land mower is too heavy the motor tyre will use high torque in which it will contribute to the high current. 

Conclusion: in a conclusion, the result shows that i have achieve the objective. 

week 11

Title:   calibrate and troubleshooting 

Objective:  To calibrate and troubleshoot the prototype


Analysis/Discussion: for this week, I need to calibrate the prototype to make my project turn 180 degrees right or left, so I adjust the coding to make the prototype perfect turn. this because of the motor dc 60 rpm with no load, so that when the prototype has a load the motor not same rpm and because of that the prototype need time to get the best result. so i adjust the delay from my coding to make turn 180 degrees.

the coding :     else if (distance < 40 && i == 1)
  {
    digitalWrite(led, LOW); // LED 1(no obstacle) OFF 
    digitalWrite(led2, HIGH); // LED 2(obstacle) ON 
    //Make 180 turn to right 
//    digitalWrite(led3, HIGH);
//    digitalWrite(led4, LOW); //dummy utk turn left
    motorLeft();
    delay(6350); //delay kne buat bg ckup masa utk motor buat pusingan
    i = 0;
  }
  
  else if (distance < 40 && i == 0) 
  {
    digitalWrite(led, LOW); // LED 1(no obstacle) OFF 
    digitalWrite(led2, HIGH); // LED 2(obstacle) ON 
    //Make 180 turn to left 
//    digitalWrite(led3, LOW);
//    digitalWrite(led4, HIGH); //dummy utk turn left
    motorRight();
    delay(6350); //delay kne buat bg ckup masa utk motor buat pusingan
    i = 1;
  }


                         

the video above showed the calibration of the hardware.

Conclusion: as a conclusion, i have done the calibration and troubleshooting the prototype.