Overview

This documentation provides detailed instructions on generating, scanning, viewing, and adding QR codes for devices in our inventory. It includes sections on creating QR codes for both compute hardware and monitor hardware, printing QR codes, and recommended QR code reader applications.

QR Code Content

Each QR code generated for the devices contains the following information:

• Original ID: The unique identifier for the device.
• Device: The type and model of the device.
• Function: The specific function or role the device performs.
• RAM: The amount of RAM in the device.
• Storage: The storage capacity of the device.
• Level ID: The level identifier which shows the group and sequence number of the device.
• SKU: The Stock Keeping Unit number for inventory tracking.

The information is structured in a plain text format to ensure it is displayed as text rather than as a URL or search query when scanned.

Creating QR Codes for Compute Hardware

1. Collect Information: Gather the following information for each compute hardware device:

   • Original ID
   • Device type and model
   • Function or role of the device
   • RAM
   • Storage capacity
   • Level ID (group and sequence number)
   • SKU number

   Example:

   Original ID: 1Z118B3-6FF1
   Device: Dell Wyse 3040
   Function: Data Collector - KuCoin / 1inch
   RAM: 2 GB
   Storage: 16 GB
   Level ID: 6-L1
   SKU: DW3040-DC-K1-2G16G-20240626
   
   

2. Generate QR Code: Use the following Python script to create a QR code containing the device's information:

   import qrcode
   
   def generate_qr_code(data, filename):
       qr = qrcode.QRCode(
           version=1,
           error_correction=qrcode.constants.ERROR_CORRECT_L,
           box_size=10,
           border=4,
       )
       qr.add_data(data)
       qr.make(fit=True)
       img = qr.make_image(fill='black', back_color='white')
       img.save(filename)
   
   # Example data for a device
   device_data = (
       "Original ID: 1Z118B3-6FF1\\\\\\\\n"
       "Device: Dell Wyse 3040\\\\\\\\n"
       "Function: Data Collector - KuCoin / 1inch\\\\\\\\n"
       "RAM: 2 GB\\\\\\\\n"
       "Storage: 16 GB\\\\\\\\n"
       "Level ID: 6-L1\\\\\\\\n"
       "SKU: DW3040-DC-K1-2G16G-20240626"
   )
   generate_qr_code(device_data, "/mnt/data/1Z118B3-6FF1_plain_text.png")
   
   

Creating QR Codes for Monitor Hardware

1. Collect Information: Gather the following information for each monitor:

   • Original ID
   • Brand
   • Type (e.g., Monitor)
   • Model number
   • Size
   • Resolution

   Example:

   Original ID: MON-1
   Brand: ViewSonic
   Type: Monitor
   Model: VS15451
   Size: 21.5"
   Resolution: 1920x1080
   
   

2. Generate QR Code: Use the following Python script to create a QR code containing the monitor's information:

   import qrcode
   
   def generate_monitor_qr_code(data, filename):
       qr = qrcode.QRCode(
           version=1,
           error_correction=qrcode.constants.ERROR_CORRECT_L,
           box_size=10,
           border=4,
       )
       qr.add_data(data)
       qr.make(fit=True)
       img = qr.make_image(fill='black', back_color='white')
       img.save(filename)
   
   # Example data for a monitor
   monitor_data = (
       "Original ID: MON-1\\\\\\\\n"
       "Brand: ViewSonic\\\\\\\\n"
       "Type: Monitor\\\\\\\\n"
       "Model: VS15451\\\\\\\\n"
       "Size: 21.5\\\\"\\\\\\\\n"
       "Resolution: 1920x1080"
   )
   generate_monitor_qr_code(monitor_data, "/mnt/data/MON-1.png")
   
   

Printing QR Codes

1. Print QR Code: Use the InstaPrint Thermal Printer with sticker material to print the generated QR code. Ensure that only the QR code is printed, and no additional text or formatting is included.