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The goal is to develop a robust Windows Forms application in VB.NET that streamlines barcode scanning, label printing, and production traceability across our automobile manufacturing lines. Core workflow • Operators will scan components through handheld barcode readers connected over both serial and TCP. Every scan must be validated against a local SQLite database in real time, blocking duplicates instantly and raising an audible/visual alert. • Once validated, the system will trigger ZPL commands to a networked Zebra printer, producing both QR Code and Code128 labels according to predefined templates. • All transactions feed a production-tracking module that updates three key dashboards: real-time production metrics, workstation-based tracking, and shift performance analysis. A consolidated view should refresh automatically without manual page reloads. Key functional blocks 1. Authentication & roles – simple login with admin rights to manage users, shift timings, workstation IDs, label templates, and master data. 2. Scan engine – supports COM ports and TCP sockets, parses variable-length data, prevents duplicate barcodes, logs success/fail with timestamps. 3. Label designer/dispatcher – stores ZPL templates in SQLite, merges dynamic fields, sends to selected Zebra printers, and records print history. 4. Production dashboard – live counters (OK / NG), hourly and shift-wise charts, and export to Excel or CSV at any granularity. 5. Reporting – generate daily, shift, and workstation summary PDFs or spreadsheets; filter by date, part number, or operator. 6. Administration – backup/restore database, purge old logs, configure scanner ports and printer IPs, and set threshold alerts. Deliverables • Complete VB.NET source code, solution files, and compiled installer • SQLite database schema with seed data • Sample ZPL templates for QR Code and Code128 labels • Documentation covering setup, configuration, and deployment steps • A short video or remote demo proving duplicate-prevention logic, live dashboard refresh, and label print cycle under both serial and TCP scanner modes Acceptance criteria – Duplicate barcodes cannot be re-scanned within the same production order – Dashboards update within two seconds of each scan – Labels match provided template samples with accurate QR/Code128 content – Exported CSV/Excel files open without formatting issues in MS Excel 2016+ Experience with MES environments, barcode standards, and Zebra printers will help you move quickly; however, concise, well-documented code and a smooth operator interface are what matter most.
Project ID: 40443257
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31 freelancers are bidding on average ₹30,643 INR for this job

Read your brief about the ZPL commands and the need for a VB.NET scan engine. Developing for high speed manufacturing lines is mostly about speed and reliability. I have seen how manual errors and barcode duplicates can slow down your entire assembly line. I can build you a clean WinForms tool that handles both serial and TCP scanner inputs without lag. My focus will be on that real-time SQLite validation. It stops duplicates instantly so you don't have untraceable defects later. The dashboards will auto-refresh so your shift supervisors always see the current OK or NG counts. I've worked with Zebra printers and ZPL templates before. I'll make sure the QR and Code128 labels print exactly as your templates require. Want a 2-min screen recording of how I'd build the real-time duplicate-prevention scan engine? Just say the word. ~ Rajesh
₹25,000 INR in 7 days
9.4
9.4

With a solid background in developing efficient software solutions, I am convinced that I can create an unparalleled manufacturing barcode and label app for you. My expertise in VB.NET and Visual Basic aligns perfectly with the core programming requirements of your project, ensuring the smooth integration of handheld barcode readers and networked Zebra printers, as well as managing an extensive SQLite database. What sets me apart is my ability to bring automation to the table, something I consider crucial for your project success given its focus on operational efficiency. My sharp Python skills complimented by advanced knowledge of automation, ML, and image processing will be invaluable in scripting a smooth workflow for barcode scanning, validating data real-time against the database, triggering ZPL commands for printing customized templates on the Zebra printer, and tracking production data effectively across all workstations. Moreover, my experience includes working with MES environments, understanding global barcode standards, and integrating Zebra printers. I'm not only focused on just delivering functional code promptly but also providing well-documented solutions that are easy to manage by your team and ensure continued software success even after our partnership ends. Endeavoring to not just build an application but also create an impactful user experience, I intend to design a concise but powerful interface keeping in mind your need for accurate dynamic fields
₹25,000 INR in 7 days
5.7
5.7

Hello, I can develop a robust VB.NET Windows Forms application for your manufacturing workflow with real-time barcode validation, Zebra label printing, and live production traceability dashboards. I will build a high-performance scan engine supporting both serial COM and TCP barcode readers with instant duplicate prevention, validation against SQLite, and audible and visual alert handling. The system will generate and dispatch dynamic ZPL labels for QR Code and Code128 formats, maintain print history, and support configurable Zebra network printers. I will also implement live production dashboards with automatic refresh, workstation and shift tracking, exportable Excel or CSV reports, and detailed production analytics. The application will include secure authentication, admin configuration tools, backup and restore utilities, log management, and fully documented deployment setup. I have experience working with industrial workflow systems, barcode integrations, printer automation, and desktop applications focused on reliability, traceability, and operational efficiency.
₹25,000 INR in 7 days
5.3
5.3

With a background in managing complex, data-driven projects, my team and I are perfectly suited to elevate your automobile manufacturing process. We have extensive experience in designing and implementing barcode systems, including a profound knowledge of VB.NET which the application will require. Additionally, our expertise with SQLite will ensure a robust database schema with secure and effective seed data. Moreover, we bring significant experience working in MES environments, which will enable us to quickly understand and address any specific requirements within your manufacturing lines. We've also dealt extensively with Zebra printers and barcode standards, minimizing any learning curve time. Given your need for a streamlined scanner mode – COM ports and TCP sockets – our familiarity with scripting such engines will negate any glitches or inefficiencies. Lastly, my team has consistently developed well-documented code and user-friendly interfaces making it easy for anyone to use the system fluently from day one; regardless of their technical background. If you decide to work with us, you can expect meticulous attention to detail in providing the complete suite of deliverables alongside easy-to-understand setup, configuration, and deployment documentation. Your satisfaction is always our priority; I look forward to bringing this project to life together.
₹12,500 INR in 7 days
5.4
5.4

I've built several VB.NET Windows Forms applications for industrial environments, including barcode-driven traceability systems, and your spec maps well to work I've done before. My approach for your project: - Scan engine: I'll implement both COM port and TCP socket listeners in separate threads, with real-time SQLite validation to block duplicate barcodes and trigger audible/visual alerts instantly. - Zebra label printing: I'll store ZPL templates in SQLite, merge dynamic fields (part no., batch, timestamp), and dispatch via TCP/IP to your networked Zebra printers — supporting both QR Code and Code128. - Production dashboard: Live OK/NG counters with auto-refreshing charts (hourly and shift-wise), workstation tracking, and shift performance views — all updating within 2 seconds of each scan. - Reporting: Export to Excel/CSV and PDF for daily, shift, and workstation summaries with date/part/operator filters. - Admin module: User roles, shift config, scanner port setup, printer IP settings, backup/restore, and threshold alerts. Deliverables will include full source code, compiled installer, SQLite schema with seed data, sample ZPL templates, and setup documentation. Could you share a sample of your current label templates and confirm which Zebra printer model(s) are in use? That'll help me configure the ZPL dispatcher accurately from day one.
₹20,000 INR in 21 days
5.2
5.2

Hi, I’m Karthik, a Senior Software Developer with 10+ years of experience building manufacturing, MES, and barcode-based production systems using VB.NET, SQLite, and Zebra printers. I can develop your Windows Forms application to handle barcode scanning, duplicate prevention, label printing, and real-time production dashboards. What I will deliver: • VB.NET Windows Forms application • SQLite database with optimized schema and seed data • Serial (COM) and TCP barcode scanner integration • Instant duplicate barcode validation with audio/visual alerts • Zebra ZPL label printing (QR Code + Code128) • User authentication and role management • Real-time production dashboards and charts • Excel/CSV/PDF reporting • Backup/restore and administration tools • Installer, source code, documentation, and demo video Key capabilities: • Dashboard refresh within 2 seconds • Shift and workstation performance tracking • Print history and audit trail • Configurable scanner and printer settings Estimated timeline: 4–6 weeks depending on template complexity and reporting requirements. I have strong experience with industrial automation, barcode workflows, and production traceability systems. Best regards, Karthik
₹55,000 INR in 7 days
5.4
5.4

Hey, I can help with this and we can get started right away. This is basically a lightweight MES style system, so if scan flow or duplication logic is off even a bit the whole production line starts behaving weird. I got 6 years experience with VB.NET, SQLite, and Software Architecture, and I’m pretty comfortable building real time scan and print systems that don’t lag or miss events. I’d start with the scan engine first (serial + TCP), then build duplicate protection and logging, then wire Zebra ZPL printing, followed by dashboards and reporting so everything stays synced in near real time. I’d use VB.NET WinForms with SQLite, threaded scan processing, and ZPL template handling to keep it fast, stable, and reliable across production lines, and I will be waiting for your response.
₹25,000 INR in 7 days
1.8
1.8

Hi, We have strong experience building VB.NET Windows Forms applications for barcode automation, production tracking, and Zebra printer integration. We can develop your complete MES-style solution including: • Serial & TCP barcode scanner integration • Real-time SQLite validation with duplicate prevention • Zebra label printing using dynamic ZPL templates • Live production dashboards with auto-refresh • Shift/workstation reporting with Excel/CSV/PDF export • Admin panel for users, scanners, printers, and configurations We understand the importance of speed, reliability, and operator-friendly workflows in manufacturing environments. The application will be designed with clean architecture, stable performance, and well-documented code for long-term maintenance. We will provide: Full VB.NET source code & installer SQLite schema with seed data Sample ZPL templates Setup/deployment documentation Demo proving duplicate prevention, dashboard refresh, and label printing workflow We’d be happy to discuss scanner models, Zebra printer setup, and project milestones further. Best, Ankur
₹20,000 INR in 7 days
1.8
1.8

As an agile and experienced developer, I am confident in my ability to deliver the manufacturing barcode and label app you need. My skills in VB.NET and knowledge of SQLite are well-suited to the project requirements, but what truly sets me apart is my problem-solving approach to create streamlined, efficient solutions. Over the years, I have successfully developed similar applications for various industries, equipping me with a deep understanding of MES environments, barcode standards, and Zebra printers. Building on reliability has always been the cornerstone of my work ethic. I don't just write code; I engineer software that can withstand the demands of your business growth. With my partner and team's support, we can offer you a tailored solution rather than relying on one-size-fits-all approaches. This means our application will be carefully designed to meet your specific operational goals. In addition to technical excellence, our team is also committed to clear communication, quick response time and proactive project management. Working with us will not only ensure high-quality delivery but also a stress-free process for you. Choose us for this project and let's turn your vision into a tangible, effective tool that brings noticeable improvements in your manufacturing line while ensuring consistent traceability.
₹25,000 INR in 7 days
0.0
0.0

Hello, I can help develop your VB.NET Windows Forms production tracking and barcode management application with real-time scan validation, Zebra label printing, dashboard monitoring, and reporting features. I have experience working with: * VB.NET Windows Forms applications * SQLite database integration * Barcode and QR code workflows * Serial COM and TCP socket communication * Zebra printer integration using ZPL * Real-time dashboards and reporting systems * Excel/CSV export and PDF reporting * Admin panel and role-based authentication systems Your required workflow including duplicate barcode prevention, instant validation, live production tracking, shift-based monitoring, printer management, and automated label generation can be implemented with a stable and operator-friendly interface. The system will include: * Login and role management * COM/TCP barcode scan engine * Duplicate prevention with alerts * ZPL template management * QR Code & Code128 label printing * Real-time dashboards with auto-refresh * Reporting and Excel/CSV export * Backup/restore and configuration tools * Installer package and documentation I can also provide clean source code, SQLite schema, sample templates, deployment support, and a demo showing live scan validation and print workflows. Regards, Shivangi
₹25,000 INR in 7 days
0.0
0.0

⭐ONLY PAY IF YOU’RE IMPRESSED⭐ With proven expertise in VB.NET Windows Forms and barcode systems, we excel at developing robust applications like your automobile production scanner and label printer. We can streamline your workflow by integrating real-time barcode validation, ZPL label printing, and live dashboards. Core Deliverables:➡️ • VB.NET source, installer, and SQLite DB schema • Sample ZPL templates & documentation • Demo video proving key features Approach:➡️ • Modular design for scalability • Real-time scan validation with alerts • Responsive dashboards with auto-refresh • Thorough testing and clear documentation I’d love to discuss the full scope and timeline. Committed to quality and meeting your goals. Kind regards, Aaron Roberts Happy Screen Solutions
₹15,000 INR in 3 days
0.0
0.0

Hi, I can develop your VB.NET Windows Forms app to handle barcode scanning, label printing, and production tracking efficiently and reliably. I’ll set up: Login and roles for admins and operators Barcode scanning via COM ports or TCP, with instant duplicate blocking and alerts Zebra label printing using ZPL templates (QR Code and Code128) Real-time dashboards for production metrics, workstation stats, and shift performance Reports exportable to Excel or PDF Admin tools for scanner/printer setup, log management, and database backup The delivery includes full source code, installer, SQLite database, sample label templates, and documentation. Dashboards will update automatically, and label printing will match your templates accurately.
₹20,000 INR in 7 days
0.0
0.0

Looking for a professional software developer to bring your ideas to life? I specialize in creating high-quality, efficient, and scalable software solutions tailored to your business needs. Whether you need a web application, mobile app, desktop software, or automation tool, I can turn your vision into reality. What I offer: Custom software development (web, mobile, desktop) Full-stack development (frontend + backend) API integration and automation Database design and management Maintenance, updates, and bug fixes Scalable, secure, and high-performance solutions Why choose me: Expertise in Python, Java, JavaScript, C#, PHP, and popular frameworks Clean, maintainable code On-time delivery and clear communication Focus on your unique business requirements Let’s build software that helps your business grow efficiently and reliably. Contact me today, and let’s get started! Gig Packages: Basic: Simple script or small software tool 1-3 pages/screens Delivery in 3 days Standard: Complete web or mobile application (medium complexity) Database integration Delivery in 7 days Premium: Full-scale software or enterprise solution API integration, advanced features, and security Delivery in 14 days Tags / Keywords: Software development, web development, mobile app development, custom software, programming, backend development, frontend development
₹25,000 INR in 7 days
0.0
0.0

Hi, I’ve worked on manufacturing/traceability applications involving barcode scanning, production logging, printer integration, and real-time dashboards where reliability and duplicate prevention were critical. I can build the VB.NET Windows Forms application with: * Serial + TCP barcode scanner support * Real-time SQLite validation & duplicate blocking * Zebra printer/ZPL integration (QR + Code128) * Live production dashboards with auto refresh * Shift/workstation-based reporting * Excel/CSV/PDF exports * Admin panel for users, scanners, printers, templates, and backups The application will be designed for fast operator workflow, stable long-running usage, and clean maintainable code with proper logging and documentation. I can also provide: * Installer + full source code * SQLite schema with seed data * Sample ZPL templates * Deployment/setup documentation * Demo video for scanning + printing + dashboard flow Estimated timeline: 2–3 weeks depending on final reporting/dashboard complexity. Quick questions: * Will scanners send plain text barcode strings or custom formatted payloads? * Do you already have sample ZPL label formats available for implementation? Best Sandeep
₹25,000 INR in 10 days
0.0
0.0

Hi, a production traceability system for automobile manufacturing lines with real time barcode validation, Zebra label printing, and live dashboards is a serious desktop application and one I can build cleanly in VB.NET. I will use Windows Forms with a SQLite backend, keeping the architecture modular so each functional block stays independent, testable, and easy to maintain on the shop floor. Here is what I will deliver: - Scan engine supporting both COM port and TCP socket connections with real time duplicate prevention, audible and visual alerts, and timestamped success and fail logging - ZPL label dispatcher pulling templates from SQLite, merging dynamic fields, sending to networked Zebra printers, and recording full print history - Live production dashboard refreshing automatically within two seconds of each scan, showing OK and NG counters, hourly charts, and shift performance breakdowns - Role-based authentication with admin controls for users, shift timings, workstation IDs, label templates, and master data - Administration panel for database backup and restore, log purging, scanner port configuration, printer IP setup, and threshold alerts - Complete source code, compiled installer, SQLite schema with seed data, sample ZPL templates, and full setup documentation Your acceptance criteria are clear, and I will meet every one before final delivery.
₹25,000 INR in 15 days
0.0
0.0

I will deliver an industrial-grade labeling and barcode solution using a Hybrid Python/Rust architecture. This ensures the reliability of a desktop application with the ultra-fast processing speeds of low-level systems engineering. Key Technical Advantages: Ultra-Fast Performance: A core engine built in Rust for near-instant barcode generation and processing, ensuring zero lag in the production line. Hardware Optimization: Optimized for AVX1 instructions, allowing maximum performance on standard industrial PCs without the need for expensive upgrades. Industrial Connectivity: Native support for thermal printers (Zebra, Argox, Brother) via ZPL/EPL and direct Windows spooling. Hybrid Security: Advanced local data encryption and a robust offline licensing system to protect your manufacturing data. Offline-First Design: Operates 100% locally. Your production never stops due to internet issues. Core Features: Precision Scanning: High-speed decoding for barcodes and QR codes. Dynamic Designer: Intuitive PySide6 interface for quick label customization. Local Database: High-speed storage for real-time batch tracking. Standalone Delivery: A single, optimized .exe with no complex dependencies. I guarantee a clean, bug-free, and ultra-responsive solution. Let's build a system that powers your factory with maximum efficiency.
₹25,000 INR in 7 days
0.0
0.0

Hello, I can develop your VB.NET Windows Forms application for barcode scanning, Zebra label printing, and production traceability with real-time dashboards and duplicate prevention logic tailored for manufacturing workflows. I have experience with desktop application development, barcode systems, SQLite databases, TCP/serial communication, and industrial workflow automation. What I will deliver: ✔ VB.NET Windows Forms application with clean operator-friendly UI ✔ Barcode scanning via COM ports and TCP sockets ✔ Real-time SQLite validation with duplicate prevention and alerts ✔ Zebra printer integration using ZPL commands ✔ QR Code and Code128 label printing with dynamic templates ✔ Production tracking dashboards with auto-refresh ✔ Shift-wise, workstation-wise, and production performance reporting ✔ Admin panel for users, scanners, printers, templates, and master data ✔ Export to Excel/CSV and PDF reporting ✔ Backup/restore and log maintenance tools ✔ Complete source code, installer, database schema, and documentation I will ensure: • Duplicate scans are blocked instantly • Dashboards refresh within seconds • Stable serial/TCP scanner handling • Reliable Zebra print output matching templates • Well-structured and maintainable code Ready to start immediately and discuss your workflow in detail.
₹30,000 INR in 10 days
0.0
0.0

✨ I can build this VB.NET Windows Forms application for your manufacturing barcode and label workflow, with real time scan validation, SQLite duplicate blocking, Zebra ZPL printing, and live production dashboards. I would set it up with a clean SQLite structure for users, roles, shifts, workstations, production orders, barcode scan logs, label templates, and print history. The scan engine will support both COM port and TCP scanner input, validate each barcode instantly, block duplicate scans within the same production order, and show clear sound and screen alerts for invalid scans. For the label side, I can store QR Code and Code128 ZPL templates in SQLite, merge dynamic fields like part number, operator, workstation, shift, timestamp, and barcode value, then send the final ZPL directly to the selected Zebra network printer. I will also add admin screens for scanner settings, printer IPs, template management, backup and restore, log cleanup, and exports to CSV or Excel. The final delivery will include full source code, installer, SQLite schema with seed data, sample ZPL templates, setup documentation, and a short demo showing serial scanning, TCP scanning, duplicate prevention, dashboard refresh, and label printing. Best regards Dipak ✨
₹12,500 INR in 2 days
0.0
0.0

Hi, your project immediately stood out to me because it aligns closely with the work I specialize in. I understand your need for a VB.NET Windows Forms app that seamlessly integrates barcode scanning, real-time validation against SQLite, and ZPL-based label printing for Zebra devices—all while delivering live production dashboards and detailed reporting. While I’m new to Freelancer, I’ve completed extensive real-world projects off-platform involving full-stack development, automation, and scalable UI/UX solutions tailored for manufacturing environments. I’m confident I can deliver clean, well-documented code and a user-friendly interface that meets your acceptance criteria. Let’s discuss how I can help bring your vision to life. Regards, Toufeeq.
₹18,750 INR in 30 days
0.0
0.0

Hello, I believe that I am the best fit for your project. I specialize in developing modern apps and digital platforms that combine clean design, strong functionality, and user-focused experiences. With expertise in VB.NET, SQLite, and Zebra printer integration, I can deliver a robust Windows Forms application tailored to your automobile manufacturing workflow. My skills include developing scalable, responsive, and efficient solutions that ensure real-time barcode validation, seamless label printing with ZPL templates, and dynamic production dashboards refreshing within seconds. I emphasize problem solving, clear communication, and well-documented code for smooth deployment and long-term usability. I have prior experience with MES environments, barcode standards, and complex industrial systems outside of Freelancer. Regards, Aidan
₹28,150 INR in 30 days
0.0
0.0

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