Upto Friday, December 28:
- I have come up with a couple of designs for the egg catcher that I hope to put up soon on the planning page. Click here for more info on my Egg Trapper
- I written out an outline of sorts of how I think we could accomplish this task to some degree.
Upto Friday, January 4:
- I figured out how to change between the blue and yellow ball, using the buttons. See how!
- I am also in the process of writing a code to recognize/find the ball.
- Working with Allison, we created an outline of what we want the robot to do and how we might go about doing it:
1. Have the robot be able to distinguish and pick the color that it wishes to find- We plan to do this by using the play and advance buttons to switch between codes. We also took sensor readings on each ball color, as shown above, so that we can use the photo resistor sensors to find the ball
2. Have it locate an egg- To do this we will use two photo resistor sensors placed at a downward angle in the front of the robot to pick up sensor readings on anything directly in front of the create(preferably the egg since that is what it is looking for)
3. Create an "egg trapping device" that will let us trap egg and bring to goal-This is basically going to look like a cube with all faces missing except for the top and the front, and these two would be enough to secure the egg between the front face and the robot when dropped.
4. Home in on light source and drop egg in goal- The egg would be secured in the egg catching device. We will then use new sensor readings from two additional sensors placed on top of the robot. These sensors will be coded to detect, and follow the christmas lights at the goal.
- I have also built a version of the egg trapping device as described above.
Upto Friday, January 11:
- Allison and I have worked together to figure out how to detect the egg without bumping into walls and such. So we've decided that we should use a short range distance sensor along with a photoresistor (to make sure it is not the wall) to activate the egg trapper into dropping. I had realized that using a Braitenberg type coding would not work in this situation becuase of the colors it is looking for. That is why we are using a distance sensor to test its proximity, and the photoresistor to make sure of the color.
- We've also decided that Allison will work on finding the egg part of the code and I will work on trapping the egg and bringing and dropping to goal.
- Also, we decided that each section of the code will be defined by a variable that we will call status. Once one section of the code has completed its task, it will set the status to a certain value which inturn will be used to go into a loop of its own specified section. I decided that this was the most effective way, so that the robot completed each of it's tasks without being interrupted or forgotten.
- My design for the egg trapper is pretty much finalized, I'll just need to put it into action and see how it works.
- As said before, I am working on the Egg trapping and scoring sections. So to find the goal, we plan on using Braitenberg in coordination with the christmas lights at the end of the goal, to find and reach the goal. Because of this we will need at least 1 extra photoresistor, which I have built.
- My goal for this weekend was to learn how to use the servo motors and make final changes to the egg trapper design.
Upto Friday, January 18:
- We redesigned our egg trap, so we can get light so we can use the photoresisters.
- We remeasured the color values. We concluded that the Blue was always greater than 860 and the yellow was always less than 860.
- We also mounted and attached every sensor and platform that we were going to use. These include:
- 4 Photoresistors
- 1 Servo Motor
- 1 Toggle Switch
- 1 Long Range Distance sensor
- 1 Cricket Display
- 1 Platform Board
- To see how I'm doing with my Practical Exam (Check if egg is right color, bring to goal). Check out my progress!
- Created a Sensor List Page: See the Robot Sensor List
Allison's and Chandni's Super-Secret Egg Hunt Planning Blueprints!!
