File:Barcode scanner connected to arduino.JPG - Wikimedia Commons
SparkFun 2D Barcode Scanner Breakout-Read 20 Different Barcode symbologies (Both 1D & 2D)- On-Board Image Processing-Decode UPC Codes to QR Codes-Features 2 LEDs Illumination & Aiming: Amazon.com: Industrial & Scientific
QR Code/Barcode Scanner using Arduino & QR scanner module – Circuit Schools
QR Code/Barcode Scanner using Arduino & QR scanner module – Circuit Schools
Amazon.com : Barcode Scanner Module, 1D/2D Codes Reader Decode Barcode, QR Code etc Onboard Micro USB and UART Interface Plug into a Computer Directly or Other Device Onboard Light Source can Work
Barcode/QR Code Reader using Arduino & QR Scanner Module
QR barcode scanner for Arduino: Use QR barcode scanner with Arduino
Barcode/QR Code Reader using Arduino & QR Scanner Module
QR barcode scanner for Arduino: Use QR barcode scanner with Arduino