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$
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I will integrate your industrial device protocol into a custom app
Jack
About this gig
Your equipment speaks a protocol and you need software on the other end. I build the client side: connecting industrial equipment to Windows applications, databases or your existing system.
WHAT I BUILD
- Drivers that talk your device's protocol over TCP/IP or serial (RS-232 / RS-485)
- Correct framing: packet fragmentation, coalescing and unexpected replies handled
- Disconnection detection, automatic reconnection, heartbeat and watchdog
- Data parsed into records, then pushed to a file, database or upstream system
- A simulator so you can validate it without the equipment on site
WHAT I NEED FROM YOU
The protocol document, or the vendor SDK, manual or sample code. You own the protocol, I own the implementation. I work from documented specs, never guesswork.
TYPICAL DEVICES
Inkjet coders, laser markers, thermal inkjet printers, label printers, weighing scales, barcode scanners.
WHY ME
19 years commissioning equipment on production lines, from the driver up. My TCP and serial communication layers run in live manufacturing, and the architecture is available for review.
Message me with the protocol document and I will tell you exactly what is feasible.
Get to know Jack
Jack
Industrial Software Engineer Label Printing Device Integration
- FromChina
- Member sinceSep 2022
- Avg. response time1 hour
Languages
English, Chinese
Industrial software engineer, 19 years on production lines.
I build software that sits between factory equipment and business systems: device drivers, label printing platforms, production data collection, traceability systems.
Equipment I have integrated: inkjet coders (Domino, Videojet, Imaje), labeling systems, industrial label printers (ZPL & TSPL), barcode scanners and weighing equipment.
I write defensive code: connection monitoring, bounded retries, clear logging. Factory software that stops mid-shift stops the line.
Available 30 hours per week, comfortable across time zones.
My Portfolio
FAQ
Do you reverse-engineer protocols?
No. I implement from the protocol document or SDK you provide. If you do not have documentation, I can write a feasibility report on what is reachable, but I do not reverse-engineer undocumented device protocols.
What if I do not have the protocol document?
Ask the device vendor - most industrial equipment suppliers provide a protocol manual or SDK to their customers. If nothing exists, message me and I will tell you honestly whether the project is workable.
What protocols and connection types do you support?
Any vendor protocol you can document: TCP/IP, serial RS-232 / RS-485, or USB-serial. The protocol itself is yours - my job is a correct, robust implementation of it.
What technology do you use?
C# / .NET on Windows. That covers desktop applications, background services and console tools. The communication layer has no UI dependency, so the same code runs in a WinForms/WPF app, a Windows service or a scheduled job.
How do you test without my device?
I build a simulator from your protocol document and exercise the full send/receive flow against it - including fragmentation, coalescing and timeout behaviour - before your hardware is involved. Then we validate on the real device during the delivery window.
Do I get the source code?
Yes, source code is included in every package.
Can the data go into our database or MES?
Yes. Data can be written to SQL Server, SQLite, files (CSV/JSON), or pushed to an upstream system over TCP, HTTP or a queue. Tell me the target and I will confirm the approach.
