C Jobs

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Hourly - Intermediate ($$) - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
Time Frame: 1-4 Days. We will require this to be completed 1-4 days after accepting the offer. We need a cross platform solution, built specifically for mac and windows. The app has to be native or if posible built with xamarin. The app has to contain a websocket server to comunicate with a browser through websockets. The app has to access the PC's printers and send information to the browser through the websockets about the printers. The app has to be able to get information from the browser. A url and printer will be sent. The url will point to a pdf file generated by a php script (test link will be supplied). The app will have to print that pdf to the selected printer. The app will be tested on 2 types of printers, one that takes letter size and one that takes 40mm*200mm paper. The url can be customized if needed to generate the pdf on the necessary scale, based on the printer paper size. Web sockets api functions needed: getPrinters (get a list of printers available on the users pc) getDefaultPrinter (returns only the default printer) print (no print preview, print directly) params: printer,url * if getPrinters supplies the default paper size, the url to the pdf will be generated to meet the printer page size * get printer will return an array of printers (the default system printer will be marked in that array) IMPORTANT: The source code has to be well organized and commented, spaghetti code will be rejected. Extra: api to configure the printer (all config options) ability to print raw text installer for easy setup (including all extra software needed, like frameworks)
Skills: C# C++ NativeScript Objective-J
Fixed-Price - Intermediate ($$) - Est. Budget: $250 - Posted
I need a developer to write me a C# .NET Class library that I can use to communicate with a Firebase 3 database.
Skills: C# Firebase
Fixed-Price - Intermediate ($$) - Est. Budget: $100 - Posted
Looking for a long terms engagement here, starting off with a simple app integrating MS Cognitive Services. App will require around 10-15 screens and will require a backend integration into MSCS. No agencies or time wasters, if you have worked on iPhone apps and are a gun please apply. Time will be critical as I am looking for this work to be done within 2 weeks.
Skills: Objective-C iOS Development iPad App Development iPhone App Development
Fixed-Price - Intermediate ($$) - Est. Budget: $25 - Posted
Would like a "Hello World" example of MQTT running via GSM (TCP) on Arduino. Connection steps should be commented Sketch should demonstrate publish/subscribe actions Should be very simple if you're familiar with this idea. HW: Board: Uno R3 compatible (Sparkfun Red) GSM: Geeetech GSM/GPRS SIM900 shield v1 (basically the same as the current v2) broker: test.mosquitto.org Requirements: Provider who actually *knows* how to do this. Please include some information about the task and any relevant experience in your response.
Skills: C Arduino Microcontroller Programming
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
I am looking for iOS developer who can update our social media app asap. Recently we moved from Parse to AWS, also we are thinking to add more features including - Real time messaging - Social login using Facebook API - OAuth I will provide more details once candidates are shortlisted. ... Recently we moved from Parse to AWS, also we are thinking to add more features including - Real time messaging - Social login using Facebook API - OAuth I will provide more details once candidates are shortlisted.
Skills: Objective-C Android App Development iPhone App Development JavaScript
Hourly - Entry Level ($) - Est. Time: 1 to 3 months, Less than 10 hrs/week - Posted
i need to create my very own cryptocurrency and wallet
Skills: C++ Java Python
Fixed-Price - Intermediate ($$) - Est. Budget: $50 - Posted
Freelancer is needed to prove reading 100 questions and multiple choice answers with correct answer defined. You need to make sure no spelling error, all terms specifically for ASP.NET are correctly spelled and cased, defined correct answer is correct. The quicker the job delivered the better.
Skills: C# ASP.NET