Gather all required components:

• Raspberry Pi 4
• MicroSD Card with Raspberry Pi OS
• Camera Module
• Electronic Solenoid Lock
• Relay Module
• Power Supply
• Jumper Wires
• Locker Enclosure

Install Raspberry Pi OS on the microSD card and complete the initial setup.

Power off the Raspberry Pi and connect the camera module using the CSI ribbon cable.

Enable the camera interface:

sudo raspi-config

Navigate to:

Interface Options → Camera → Enable

Reboot the Raspberry Pi.

Connect the relay module to the Raspberry Pi GPIO pins.

Example wiring:

Relay IN  → GPIO17
Relay VCC → 5V
Relay GND → GND

Connect the solenoid lock through the relay so the Raspberry Pi can control lock and unlock operations safely.

Update the system:

sudo apt update
sudo apt upgrade

Install required libraries:

pip install opencv-python
pip install numpy
pip install requests

These libraries handle image processing, automation logic, and cloud communication.

Create a user database containing authorized users.

The system can store:

• User ID
• Name
• Access Permissions
• Locker Assignment
• Access Logs

This information can be stored locally or synchronized with a cloud database.

Create a Python application that:

1. Detects user activity.
2. Verifies access permissions.
3. Activates the relay.
4. Unlocks the locker.
5. Records access events.
6. Synchronizes data with the cloud dashboard.

Connect the Raspberry Pi to a cloud service using APIs.

The dashboard can display:

• Locker Status
• User Activity
• Access History
• System Health
• Real-Time Notifications

Perform complete testing:

• Verify lock operation
• Test user authentication
• Confirm event logging
• Validate cloud synchronization
• Check unauthorized access handling

Ensure all events are properly recorded and displayed on the monitoring dashboard.

Mount all electronics securely inside the locker enclosure.

Verify:

• Stable power supply
• Reliable network connection
• Secure lock operation
• Proper cable management

The Smart Locker System is now ready for real-world deployment.