Barcode/QR Systems

Digitize your inventory management with barcode and QR code technologies. I develop warehouse entry/exit tracking, stock counting, product traceability and labeling systems. I build web-based warehouse software managing stock, counts, requirement lists and deadlines with QR scanning via the phone camera, mobile field apps using barcode/QR and OCR at goods receipt and production control steps, and ZPL-based label printing software for Zebra printers. I connect the barcode system to your ERP or inventory software so data flows from a single source. As a freelance software developer in İzmir, Türkiye, I work online with businesses in İzmir and the surrounding region, with no intermediaries between you and the developer.

Features

  • Barcode / QR code generation
  • Handheld terminal integration
  • Warehouse entry/exit tracking
  • Stock counting system
  • Product traceability
  • Label printing management

Use Cases

  • Warehouse management system
  • Production line tracking
  • Retail stock management
  • Cargo tracking system

Who is it for?

  • Businesses managing warehouses and stock
  • Manufacturers that need product traceability in production
  • Teams checking documents and labels at goods receipt
  • Facilities that want to automate label printing

How I work

  1. 1Discovery: I review warehouse processes, product coding and existing devices
  2. 2Standards: I define label templates and coding rules
  3. 3Development: I build the software and device and printer integrations
  4. 4Field pilot: I test in a selected area with real operations
  5. 5Rollout and support: I extend to the whole warehouse and follow usage

Technologies Used

  • C#
  • .NET
  • Zebra SDK
  • Android
  • SQL Server
  • REST API

Related Projects

Sample application

Warehouse and Inventory Management Software

Sample web-based warehouse software managing stock, counting, requirement lists, due-date tracking and approvals, with camera QR scanning and a mobile-friendly interface.

Sample application

Field Mobile Apps (.NET MAUI)

A sample iOS and Android field app for goods receipt, barcode/QR scanning, OCR document reading, production inspection steps and Zebra label printing, with a web panel for records.

Sample application

Desktop Warehouse App and Web Dashboard

A sample solution made up of a C# WinForms desktop application for warehouse operations, an ASP.NET MVC web dashboard for management and a Web Service based integration layer for data exchange between systems.

Sample application

Industrial Monitoring and IoT: Energy, Climate, Cameras

A sample industrial monitoring application combining a browser-based energy panel, temperature-humidity data collection over Modbus, permission-based live camera viewing (NVR) and label printing for Zebra printers.

Frequently asked questions

Do I need a handheld terminal, or is a phone enough?

For low and medium volumes, scanning QR codes and barcodes with a phone camera is often enough; web-based warehouse software can read QR codes with the camera. In warehouses with heavy scanning or harsh conditions, rugged handheld terminals are more efficient. During discovery I help you decide which option suits your volume.

Can I print labels with my Zebra printer?

Yes. I prepare label templates in ZPL for Zebra printers and let your software print directly. Information such as product, batch and expiry date is printed on the label automatically, and the barcode or QR code is matched to the record in the system. For printers from other brands, I evaluate the methods the manufacturer provides.

Will the barcode system connect to my ERP or inventory software?

Yes; the real value of a barcode system comes from never re-entering data by hand. Scanned records are transferred to your ERP or inventory software via API, web service or database. I clarify the integration points during discovery.

Should I use barcodes or QR codes?

If you only need to carry a product or stock code, a classic barcode is sufficient and widely used. If you need to carry more information such as batch number, expiry date or a link, read easily with a phone camera, or fit into a small space, QR codes have the edge. I help you decide, taking your supplier and customer standards into account.

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