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AVR/C Open Source development

$1500-3000 USD

Closed
Posted over 9 years ago

$1500-3000 USD

Paid on delivery
We need a individual or team of software engineers who can work to a tight deadline. Description of the project: What we would want is something that is suitable for demonstration, so a running prototype would be sufficient. Existing codebase (someone42/hardware-bitcoin-wallet ¿ GitHub) runs on a mega2560, with a few alterations. (Such as the PROGMEM statements being recast with const) As this is an open source project, the original developers have stated they do not have the time to keep up development. Last year, a hardware device was developed that ran off this codebase (with some additions that I assume are not open source). We want to : 1. Debug/figure out the problem with the communications stream. (There seems to be a communications error, I believe the serial stream protocol is somehow not being framed correctly.) 2. Add code that would use bluetooth as an alternative to USB. My current development chip is an NRF8001, open source drivers for this are available 3. Add code to abstract the display more current display is a typical 16x2 LCD. We would like to use a 2" e-ink display. Open source drivers for this are available. 4. Currently the code only has 2 physical buttons allocated. We would like to add code for reading and using a 10-key (telephone style) keypad. 5. Add capability to sign free-format text messages. Being that the entire code is designed to sign transactions, I don't think this is a giant problem, just would need to extend the protocol. 6. Extend the transaction capabilities to be able to also process Litecoin. 7. Add a deterministic seed capability. In other words, could reconstitute the private key by using a known to the user list of words to create the seed for the crypto creation of the private key. 8. Add power on and transaction PIN capabilities. I believe these are already in the code as stubs. All of the code for the above functions already exists in open source form. We just need someone to integrate it.
Project ID: 6115981

About the project

8 proposals
Remote project
Active 10 yrs ago

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8 freelancers are bidding on average $2,574 USD for this job
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I have got 12 years of embedded sw development and debugging experience. I would make sure you have a robust and a stable product.
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Hello, I have good knowledge and experience of 9 years in "C" & "C++" in software industry. This is my first project as freelancer and would like you to consider me. Also I have appeared in C & C++ exam on freelancer.com and secured 96 & 89 percentile respectively. I have qualified toughest engineering entrance examination in India (IIT-JEE) and done my B.Tech. from one of best colleges in India. Currently I am working as a Senior Software Engineer in IBM India Pvt. Ltd. Regards, Kumar Saurabh
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Hello! I'm very happy to meet you. I have a lot of experience in these fields for many years. Also I hope to develop the world wide worth applications. I always regard the accuracy, honesty and perfect as the first in all works. I will do my utmost for your good successful business. I will accept your proposals on your project time and price. While hoping your good feedback. I hope to work with you in the future Thank you. Sincerely. From your freelancer.
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If you have the hardware ready, we could intergrate and test the complete demo software / utility you want. We will supply you well commented source code, test methods, demo over video the code running. We have tremendous experience with serial and USB driver and app development - we have our own MODBUS stack for example. Look forward to more details from you. Please PM me. With regards Iyer
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