Digital testing chart

I need you to develop some software for me. I would like this software to be developed for Linux using C. I am currently looking for someone to write a GUI application for Linux. The application is for a digital eye testing chart, like the one you see in optometrists when you 'read letters from the top line'. You would need to supply the complete source code including commenting written in C if possible. Please see the rough project outline below:

Operating System: Raspbian stretch with Desktop V4.9

Hardware: Raspberry pi 3b

Video output via hdmi

Screen Resolution: 1920x1080

Completely offline - no wifi/bluetooth functionality

Screen resolution is key in all concepts of this program (menus/tests)

Sony ‘XMB’ style look with colour themes (set by user)

7 key tests to be created along with Snellen, Tumbling E, Numbers, Duochrome balance, Cross cylinder dots and point of fix tests, will explain in further detail if we go ahead with the order.

Need a seperate quote for an additional 40 tests to be created.

Mostly black and white tests but some colour

Need to show on screen for tests:

Name of the test

Current contrast ratio (adjustable on button press)

Acuity scale (size of text, adjustable on button press)

Letters must be able to accurately scale at button press according to algorithm

Randomize letters on button press although remove some sequences (swear words)

Randomize must never repeat (within reason)

Must be able to play multimedia from sd card

Presets can be saved to sd card and loaded on startup

Error logging

Possibility for different languages in the future - hidden from user for this build. If you think you could be up for the job or have any further questions, please feel free to ask. Thanks.

Taidot: C-ohjelmointi, graafinen suunnittelu, Linux, tietojärjestelmäarkkitehtuuri

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Tietoa työnantajasta:
( 0 arvostelua ) Tingalpa, Australia

Projektin tunnus: #17277653

Myönnetty käyttäjälle:


hi we ready make many Raspbian GUI for Raspberry 3b , 3b+ under jessie and stretch you can check some work on our channels [login to view URL] we using raspbian lite versio Lisää

$750 AUD 30 päivässä
(23 Arvostelua)

21 freelanceria on tarjonnut keskimäärin 649$ tähän työhön


Hi! I'm interesting your project very well. I am a full time devloper. I am mastering c++ and I'm a good Mathematician. And also I have many experience and good skill about algorithm development. Let's go ahead w Lisää

$500 AUD 10 päivässä
(282 arvostelua)

Hello, My name is Miguel Febres and you can locate my resume and certifications in the following links: [login to view URL] [login to view URL] In my 10+ years of e Lisää

$588 AUD 10 päivässä
(96 arvostelua)

I have a very strong experience of more than 10 years in the field of software development. I have many developing skills : o Programming with C/C++, Java, C#, Python etc o Linux/Unix , Windows, MacOS based applica Lisää

$500 AUD 10 päivässä
(82 arvostelua)

Hello, I read the description of your project thoroughly. I understand your requirements basically, and I have experiences of similar project. I am professional Website builder and Mobile App developer, and talented A Lisää

$555 AUD 3 päivässä
(49 arvostelua)

Hi there..... Warm Greetings We came along with your request for Digital testing chart and we reviewed your project description. We'd like to help you with confidence and satisfying results... We have professi Lisää

$555 AUD 10 päivässä
(73 arvostelua)

Hi, I have immense experience with Raspberry pi 3 programming and raspbian os. I have developed many applications using C and linux and my experience concludes to more than 5 years. I have even developed digital sig Lisää

$750 AUD 10 päivässä
(29 arvostelua)

Hi - Greetings of the day! I would like to take complete responsibility to DESIGN SUPER-AWESOME BUSINESS LOGO for you., which will give a unique identity and characteristics to your business. Our specialty spread acros Lisää

$250 AUD 3 päivässä
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I can build new website for the live broadcast. Please provide me more details about the project so that i work .

$555 AUD 10 päivässä
(59 arvostelua)
$666 AUD 10 päivässä
(22 arvostelua)

I can definitely build this for you, sadly not on that price range and also if I would do it I'll go cross-platform creating the app with React. About the UI design (similar to sony XMB) is perfectly doable, the resolu Lisää

$555 AUD 60 päivässä
(5 arvostelua)

Interresting medical tool you have here. I have the hardware and ready to go. Lets enjoy it together. Will discuss the keys with you and then lets go.

$744 AUD 100 päivässä
(8 arvostelua)
$777 AUD 15 päivässä
(11 arvostelua)

Greetings, Fastest delivery being proposed here as well as top quality over this work-piece Please message me once the proposal would turn you interested. Thank you, Best Regards

$2000 AUD 5 päivässä
(24 arvostelua)

Hello, This is Anil, Web Application developer with pretty good experience in industry. I have been in this industry from 5+ years and such jobs are my daily practice.I am assure you that we have a well experienced S Lisää

$555 AUD 10 päivässä
(3 arvostelua)

hi, if i understand correctly your description, you want a digital eye examination using the raspberry pi. i can help you accomplish this project and have experience at those technologies. also i can help you making t Lisää

$444 AUD 10 päivässä
(6 arvostelua)

Hello Sir, The eye vision chart using Raspberry pi is my own product. I have already sold so many product based on this. I am having all the image to test the eye vision in the high resolution. The system is made Lisää

$777 AUD 3 päivässä
(2 arvostelua)

Hi, We have our expertise on raspberry pi, C, Linux Internals, Python, HTML, Java. We could take up this project and finish at best. We understood the project requirement and we have few questions on thi Lisää

$500 AUD 10 päivässä
(0 arvostelua)
$555 AUD 10 päivässä
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$500 AUD 10 päivässä
(1 arvostelu)

Hi, I can do the job, I have more than 7 years of experience in embedded system and software development in general, i have developed many Gui interfaces most of them run on the raspberry pi. for this project, we ca Lisää

$555 AUD 30 päivässä
(0 arvostelua)