PmWiki | Robots / LisaBJonPlanningPage

Team Eggsecute

Robot 0x04: Dr. Robotnic

Strategy

*Use random motion program to move around the board

*Find an egg using distance sensors placed around the robot

*Lower the arm and catch the egg

*Begin spinning and determine the color of the egg using light sensors

*If it's the desired color, release the ball in the direction of the goal/lights by using a set light value of the christmas goal lights.

*If it is the opponent's color, release the ball in the opposite direction from the goal

Table of Tasks

Task	Description	Who	Deadline	Completion Date
Find the egg	Use a random motion program to move around the board until an egg is found; uses distance sensors.	Lisa		1/11
Collect Eggs	Construct an arm to collect the egg and shoot it into the goal	Jon	1/9	1/17
Determine color of balls	Find the different sensor values, for when a light sensors detects a yellow or blue egg. Use these sensor values to make the robot stop, activate the servos and capture the egg, and then proceed when it detects otherwise. Repeat.	Jon	1/18
Locate goal	Use light sensors to find the basket-Braitenberg Principles	Jon	1/14	1/18
Drop Egg(s) into goal	Shoot eggs of right color into the goal, and shoot eggs of wrong color in the opposite direction	Jon	1/17	1/18
Stop Operating after two minutes	create a script that will time out the robot after two minutes and then wait for the play/advanced button again. This should be easy and take only a few minutes once we finish the rest.	Lisa		1/17
Define User Interface	Determine the leds/beeps that will signify what part of the code that we are in.	Lisa	Once most of the code is finished.	1/21
Combine code	Combine both parts of code into the whole egg hunt	Lisa		1/21
Safe mode	Develop codes to respond to cliffs, bumps, and wheel drops	Lisa		1/18
Build hardware	Arm/motors, sensor placement/construction	Jon and Lisa respectively

Jon H's Progress

Jon Hohraths Practical Exam

Week of January 4...

On Wedsnday, i started to Brainstorm ideas about egg hunt strategies I then created a table with goals, tasks, deadlines, and responsibilites on the wiki. It took me a while to figure out how to make the chart that is now on our wiki. Throughout the week, i was mainly focused on completeling lab 5. If i could finish lab 5 then i could devote all my efforts to the egg Hunt. I designed our strategy as follows...

The robot would drive around randomly, as discussed by me and lisa, until it found an egg. She would be dealing with sensing the egg. It was then my task to drop a box over the egg, find the goal, and drop the egg into it. I proceded to build a box, however, it wouldnt fit well into the goal. A new stategy was required.

Me and lisa decided to name our team "eggsecute" and our robot, Dr. Robotnic, after discussing ideas.

Week of January 11

I really started working on the egg hunt this week since i finished up lab 5. I frequently went to Umass Lowell this week in order to work on lab5/egghunt. After doing alot of brainstorming and playing around with ideas, something hit me. As i was playing around with the plastic balls, i started to roll them into the goal. It was extremely easy to roll them in. This got me thinking... If i could design a device that would shoot the balls in the goal instead of bringing them in, i think we would be very successful.

This week, i physically made a platform out of wood to mount the servo and the sensors. I also built up the servo and created a "paddle attachment." Look at the pictures below to see. I also wrote some basic scripts to rotate the robot with the servo down. It worked extremely well.

Week of January 18

This week, me and lisa got together to discuss how the robot would sense the balls. She said that she could drive randomly, and i suggested that we mount sensors on all sides of the create to determine if there is an egg present. I continue to work on the scripts, making the robot be able to accurately shoot the ball in from all orientations. Things are looking up for our group.

Lisa B's Progress

Lisa Baumoel's Practical Exam

Egg Hunt

Accomplishments at end of week, January 4

Started Team page and my private page
basic strategy/goals for egg hunt
still working on lab 5, so not much detail work done on egg hunt

will be done with lab 5 by Monday at the latest, and then can work on egg hunt.

Accomplishments at end of week, January 11

Made random driving code to help aid in search
Began working on code to find egg and determine color

Idea: using Braitenberg principles to find egg, only using distance sensors instead of light sensors.

Accomplishments at end of week, January 19

Revised random driving code to include random function (limit 36, multiplied by 10)
Found distance sensor values to find eggs -- must revise to differentiate between wall and ball
wrote code to put together movement and stop when an egg is detected
wrote up safety features, including bump, cliff, and wheeldrops

still need to put together find egg and egg capture codes.

LisaBJonPlanningPage