Serial Port Interfacing Jobs

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Fixed-Price - Entry Level ($) - Est. Budget: $2,200 - Posted
Looking for a .NET developer ( or C#) with experience developing interfaces to/from serial port devices to build a desktop solution that listens to a bar code scanner (via serial port) and sends SOAP requests to a predefined web service API based on the bar codes that are scanned. There are 3 components to be developed: 1. A windows service that listens to the COM port and makes SOAP calls 2. A windows system tray application that reports real-time status of the windows service in part 1. 3. An MSI installer that gracefully installs, reinstalls, upgrades, or downgrades the 2 components above in unattended mode Platform is Windows 7 Pro 64-bit. No database required. The successful developer will receive a complete requirements document. Developer is expected to develop the above components, unit test them. A code review will then be conducted. Our QA team will then run integration tests and provide feedback to the developer. Final code changes can then be made and unit tested. Final Deliveries include: - The Visual Studio solution package (source code and assemblies) - Compiled versions of the above 3 components Milestone Dates: Aug 20, 2016 - Application makes a simple successful SOAP call to the Web Service API Sep 10, 2016 - Application ready for integration testing Sep 20, 2016 - Submit final deliverables
Skills: Serial Port Interfacing SOAP
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
I am wanting to integrate an 900 mhz OEM RF Module with a Raspberry PI. The OEM RF Module must be bridged with the ethernet port in the Raspberry PI. The OEM RF Module has available to it several modulation, speed, and payload settings that need to be made available to users as configurable options via a web server on the raspberry PI. The OEM Module will come with an API to interface with the Raspberry PI and interfaces via TTL via 24pin Samtec Connector. First portion of the job will be to consult on the design of the interface both Hardware and Software. Successful completion of the project will be a working 900mhz ethernet radio using the PI board interfaced with the OEM RF Module, that is configurable by users via web server hosted on the PI. Other improvements will be included after successful delivery of the radio.
Skills: Serial Port Interfacing Raspberry Pi User interface design
Hourly - Expert ($$$) - Est. Time: 1 to 3 months, 10-30 hrs/week - Posted
We are at the tail end of building the first Bluetooth controlled exercise weight machine. We are seeing some interference issues and stability issues. I'm looking for an RF engineer that has experience in the various methods of RF Signal transmission. If you have worked with RC controllers, Bluetooth, or Wifi on embedded systems, I'd like to get your help. It is our goal to build a reliable and fail safe system. Signal integrity and critical mission protocol would be ideal. Please let me know if you are interested. Check us out on Long term opportunity is also available. -Brandon Chief Product Officer
Skills: Serial Port Interfacing Circuit Design PCB Design
Fixed-Price - Intermediate ($$) - Est. Budget: $100 - Posted
Enopte has developed an Energy Management System ( refer ) and is seeking a reliable and qualified Raspberry PI / Linux developer to join the team. The first project includes: RS485 (proprietry protocol) -> RS485 Modbus RTU protocol converter for solar inverter. You will be provided a detailed specification. I look forward to your application. Regards, Mark
Skills: Serial Port Interfacing Embedded Linux Raspberry Pi
Hourly - Expert ($$$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
We have a GPS device unit which has its own firmware, we know how to send and use every command, right now it is sending data to our server and everything is working well. What we need is to create our own firmware, which is to develop the communication protocol and changing the command format that is sent and/or received. Commands can be sent via SMS, GPRS, or connected to a computer through a serial cable. We also would like a documentation or tutorial once the project is done, explaining to us what was the procedure applied in changing the firmware since so that we can duplicate this same process from the one provided. More details will be provided after signing an NDA. Regards.
Skills: Serial Port Interfacing Firmware Engineering Reverse engineering