Hardware design modification and firmware update

This project is to update physical connection points on the PCB and modify existing hardware and code to allow for a small amount of data communications to a chosen international 2G GSM network for reporting to an existing cloud server database. Modem is your choice based on Best Practices.


For hardware: Analog electronics, Digital electronics, PCB layout, Altium Designer.

For firmware: C programming, STM8, IAR, MQTT.

For database: MySQL.

Full release of previous electrical engineer's schematics, code, and documentation will be made to the chosen candidate. Previous engineer in Russia (English/Russian language) will cooperate to answer questions about his previous work to provide a seamless transition to a new engineer or engineer team.

Work to be completed 90 days from award.

Candidates with work samples and references will be favored during consideration for awarding this project.

Skills: C Programming, Firmware, Microcontroller, MySQL, PCB Layout

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About the Employer:
( 37 reviews ) Auburn, United States

Project ID: #19760910

46 freelancers are bidding on average $313 for this job


Hi I am experienced electronics engineer with more than 9 years of experience. i can do it for you. please share the previous design files. I am waiting for your reply to discuss it further Regards

$235 USD in 30 days
(188 Reviews)

Dear Sir. How do you do? I have seen your description very carefully and posting to you my idea. you can see my many work history from my profle. If you give me a chance to interview, I'll explain in more detail and More

$500 USD in 3 days
(30 Reviews)

Thanks for sharing your project. As I'm a Senior Embedded System engineer, I have rich experiences in many embedded systems development, IOT(Internet of Things), and home automation programming over 8+ years. More

$800 USD in 5 days
(29 Reviews)

Hello, I'm an electrical engineer with 8 years of experience in circuit design, PCB layout and firmware programming. I read yoru project description carefully and checked attached schematic. This project really fits fo More

$1200 USD in 30 days
(14 Reviews)

Hello How are you I have read your job description in detail . I am Xu please see example It is a piece of cake Please contact me and Let's discuss more thanks for your posting . hope to hear from you .

$140 USD in 7 days
(55 Reviews)

Hi Sir, We have read your project and we are expert in it. we can offer you our skills on stm32 and stm8 and can do this project for you from all aspects. Please check our profile and come back to us. thanks. More

$250 USD in 3 days
(34 Reviews)

Hello sir, I have experience in designing electronics circuits and can develop hardware compatible smartphone and PC based apps. I also have done a lot of IoT projects and can transform your idea into a fully working More

$200 USD in 10 days
(30 Reviews)

Hi, I am a professional electronic engineer. I have good experience with circuit and PCB layout design and you will see about this from my profile/portfolio. I think that my professional knowledge and experience will p More

$250 USD in 5 days
(17 Reviews)

Hello, I have gone through your job posting and become very much interested to work with you. I am an expert in this field. I have already completed several projects like this. For evidence you can see my profile. More

$250 USD in 4 days
(25 Reviews)

Hi, I am an Electronics and computer science engineer ..being more experienced with 2G, I would strongly advise you to not use as networks are giving up on it ... have one question before going forward with this: you More

$140 USD in 7 days
(8 Reviews)

Hi there, We will try to complete the work in 90 days from award. We are a professional team in Embedded system having hands on experience in PCB layout design using various CAD tools. Also we do work in STM MCU. We More

$500 USD in 30 days
(6 Reviews)

hello i am a computer engineer,i have masters in computer engineering,i have experience for more than 8 years in arduino and electronics,i have implemented a solution like this for one of the customers here

$250 USD in 3 days
(16 Reviews)

Hello! I am very interested in your post project. I am sure i can provide you perfect result as you want since i have rich experience on it. Actually, my slogan is "Time is Money". so i will do my best for your pro More

$155 USD in 3 days
(8 Reviews)

Python I am expert in Python and recently created Maze Game in [login to view URL] implimented google captcha on this [login to view URL] in good in matplotlib or other data visualization .ALso create complex [login to view URL] check pr More

$140 USD in 7 days
(11 Reviews)

Hi, I am interested in your project. I have also hands-on experience with a similar project like yours (a low-power, smart device with silicon labs EFM8 MCU and Quectel M95 modem) Please send me a message so we c More

$250 USD in 10 days
(7 Reviews)

I have firmware/hardware/system integration proficiency along with 10 years experience in the embedded world. I can modify the schematics in Altium/Eagle and work on the firmware using the desired IDE/Compiler to ac More

$250 USD in 15 days
(5 Reviews)

Hi Dear, I read your job description thoroughly. Your explanation was very good. I appreciate the way you have explain requirements. This project exactly match with my expertise. I am happy to say, I can do your this I More

$350 USD in 7 days
(6 Reviews)

Hello Sir I have industrial experience on altium designer, stm8/32 series microcontrollers. I prefer C language with IAR or KEIL IDE. Waiting for your reply thanks.

$277 USD in 30 days
(4 Reviews)

Hi,sir. I am super interested in your project - 'Hardware design modification and firmware update' :) I believe that my 12+ years of experience in development makes me highly qualified for this project. I'm sure that I More

$155 USD in 1 day
(4 Reviews)

Dear sir, The project description is matching my skill set. I can show you my work samples on Skype. Please contact me for quality work and service Regards, Mehmood Ahmed malik

$555 USD in 90 days
(5 Reviews)