Raspberry Pi and Arduino Integration

I'm seeking assistance to integrate Raspberry Pi and Arduino for a plastic bag detection project.

Requirements:
- Connect Raspberry Pi Camera Module 2 to Raspberry Pi 3.
- Configure camera using a pre-trained AI model to detect plastic bags.
- Connect stepper motor to Arduino Uno via DRV8825 driver.
- Establish communication between Arduino and Raspberry Pi:
- When plastic bag is detected, stop stepper motor and turn on LED.

Available hardware:
- Arduino Uno
- Stepper Motor
- DRV8825 Stepper Motor Driver
- Raspberry Pi 3
- Raspberry Pi Camera Module 2
- GPS Module

Ideal skills and experience:
- Experience with Raspberry Pi and Arduino
- Familiarity with camera integration and AI models
- Knowledge of stepper motors and motor drivers
- Strong programming skills for inter-device communication