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.

Competenze: Programmazione C, Graphic Design, Linux, Architettura Software

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Sul datore di lavoro:
( 0 valutazioni ) SUNNYBANK, Australia

ID Progetto: #17277653

30 freelance hanno fatto un'offerta media di $659 per questo lavoro


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 Più

$500 AUD in 10 giorni
(245 Recensioni)

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$588 AUD in 10 giorni
(68 Recensioni)

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

$555 AUD in 10 giorni
(53 Recensioni)

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 Più

$555 AUD in 3 giorni
(41 Recensioni)

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 Più

$750 AUD in 10 giorni
(27 Recensioni)

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$250 AUD in 3 giorni
(233 Recensioni)
$666 AUD in 10 giorni
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Hello Very Interested in your project I can help you with 7+ years linux gui development experience. Let's have a talk for more detail Thanks

$888 AUD in 10 giorni
(10 Recensioni)

Hello, Dear. Nice to meet you. I've read your post carefully. I'm C#/C++/Graphics expert. Could you discuss more details on chatting room. Regards. Gao M.

$588 AUD in 10 giorni
(44 Recensioni)

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 Più

$750 AUD in 30 giorni
(18 Recensioni)

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 in 100 giorni
(7 Recensioni)

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 Più

$500 AUD in 10 giorni
(18 Recensioni)

Hi, Dear. Nice to meet you. I've read your post carefully. I'm C#/C++ expert. Could you discuss more details by chatting room. Regards. Gao M.

$588 AUD in 10 giorni
(20 Recensioni)

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 Più

$555 AUD in 10 giorni
(34 Recensioni)

Hello, I have read your project details carefully and would like to discuss my skills and plans with you. I am an c / c++ expert and have been developing and experimenting with it for 10 years. Great things co Più

$555 AUD in 10 giorni
(11 Recensioni)

Hi, Raspberry Pi pro, have done many projects on RFID, GPU, GPIO and Video. I am a multimedia expert with Audio Video encoding/decoding experience in Linux/Android Domain. Delivered several projects on RPI, You can se Più

$1333 AUD in 15 giorni
(22 Recensioni)

Hello I am pleasure with your job Digital testing chart. Thanks for your job posting. I have throughout this description and think it's good fit for my skill-sets. As a senior expert on this job ,you can get a good Più

$555 AUD in 10 giorni
(12 Recensioni)

Hi,dear. I've just checked all requirements of your project 'Digital testing chart'. I'm a senior software developer and I'm able to fulfill your project requirements ,you may be interested in me. Please come in contac Più

$500 AUD in 3 giorni
(4 Recensioni)

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 Più

$555 AUD in 60 giorni
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$777 AUD in 15 giorni
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