How to Turn your iPhone or Android into a Barcode Scanner
Barcode/QR Code Reader using Arduino & QR Scanner Module
NETUM Bluetooth Mini Barcode Scanner 2.4G Wireless Compatible, Small Pocket USB 1D 2D QR Code Scanner for PC POS, Bar Code Image Reader for Tablet iPhone iPad Android iOS - C750: Amazon.co.uk:
Barcode + QR Code Reader using Arduino & QR Scanner Module - YouTube
Barcode/QR Code Reader using Arduino & QR Scanner Module
Make a Portable Barcode Scanner With an Arduino and a Cuecat : 11 Steps - Instructables
How to Create and Use Barcodes for Inventory Management
Make your own barcode scanning system | Barcode click - YouTube
Barcode scanner made for ESPHome - Share Project - PCBWay