Competition Score and Rankings

42 Students are enrolled in the class.

1 Brendan, 57, Video

2 Nathan, 34, Video

3 Jerry, 33, Video

4 Vanessa, 27, Video

NA Instructor, 20, Intro Video

5 Reganne, 18, Video

6 Clara, 15, Video

7 Ethan, 14, Video

8 Julia, 7, Video

9 Jacob, 3, Video (U of A restricted)

Good bye (U of A restricted)

Congratulations!

Design

Game Field

You will need to build the game pieces, consisting of the lights (3 LEDs) and 3 Push Buttons. The LEDs will be powered through the Raspberry Pi and the Push Buttons will be read by the Raspberry Pi. Ideally you connect them on the solder-less breadboard and use the correct pullup and current limiting resistors.

Design Components

Your design components will likely consist of

• Button Manipulator
• Light Detector
• Software

You will need to use the MeArm as your Button Manipulator. Your gripper can hold a Button Pusher.

You will need to use your camera as Light Detector.

Design Considerations

The further apart your buttons are the more likely you can turn them off consistently, however it will also take longer to move the arm to a different button.

Software

Scoring

The scoring and light activation software will be provided. There will be a section where you can assign the lights and buttons to pins of your raspberry pi and where you can indicate whether on or pushed corresponds to high or low.

Your Software

Your program will consist of a light detector and a arm activator. Both program section will need to be optimized to identify which light is on and to move the arm in a manner that will push the button in a most consistent way.

Camera software for the CSI and USB camera will be provided.

I recommend third party software to analyze your images off line. For example you likely will need to identifying the location of your LED in the image: https://imagej.net/Raspberry_Pi

Competition Rules

A new randomly selected light will light up as soon as you turned off the current light.

Turning off the light is accomplished with mechanically pushing the button corresponding to the light.

Software to select and turn on the light will be provided and with exception of the pin assignments can not be modified. The next light to be turn on will differ from the currently lit one. The provided software will count the cycles of successfully turning off the lights.

The timing will start once the first button is pressed. The game will last 1 minute.

Your score is the number of completed cycles.

Assignment

The grade does not depend on your game score. Participation in the competition will be graded using the following submissions:

• Demonstrate that you can detect which light is turned on
• Demonstrate that you can move your arm to either of the 3 push button positions
• Turn in an overview picture of your setup
• Turn in a close up picture of your button pusher
• Turn in a picture of your game field (lights and buttons)
• Turn in a diagram of your field electronics
• Turn in your code
• Attend the Competition
• Turn in a one to two page description of your selection of the components and approach used in the software

Example Game Field

Competion Code

Competition.py This code will need to be run in the shell with python3 Competition.py

Camera Code

CameraTest.py This code reads pictures of your camera and attempts to compute the average intensity in a region of interest.

LEDtestCamera.py Manipulate LEDs manually to turn them on/off. This is helpful to test the camera code. Develop your program in Thonny or VS Code and run this one in a shell with python3 LEDtestCamera.py

Play Field Code

LEDtestArm.py Run this code to see whether LED was pushed by the arm or not.

ActivateButtonWArm.py An attempt to push a button