Raspberry-Pi

HPCC Conference Raspberry Pi competition project

Device

Architecture

AWS Resources

Create the S3 buckets and the DynamoDB instance using Terraform. The file main.tf defines the cloud infrastructure needed.

> terraform plan
> terraform apply

Running

This application uses Python 3. You should not be using Python 2 anymore, EOL 2020.

There are many ways to setup AWS credentials, most typical is environment variables and .aws/config files. Credentials are expected to already be sourced.

Required pip modules

• boto3
• Pillow
• IMDbPy
• gpiozero
• picamera
• pygame
• google_images_download

> python main.py

AWS Services

• Rekognition
• Polly
• DynamoDB
• Route 53
• S3

Flow

1. power on the unit with AC or battery pack
2. boots into command prompt
3. Linux init.d system runs python script "main.py"
4. speaker will emit a ready signal when the system is initialized
5. object is triggered by a mechanical action - button push
6. speaker emits a countdown
7. capture picture from camera
8. save picture to /tmp/image.jpg
9. upload picture to S3
10. delete /tmp/image.jpg
11. call apis and store label counts
    1. detect_faces
    2. recognize_celebrities
    3. detect_labels
    4. detect_text
12. JavaScript generated on stats
13. website updated with graph and photo booth
14. speaker emits voice of what is analyzed
15. return script to ready state