Develop websocket Firmware for SIM7100E chip(From scratch)

We are looking for an experienced Embedded Engineer with previous experience on SimCOM chips (or comparable).

Your job will be to write a custom firmware to run on the SIM7100E chipset. The SIM7100E chipset supports TCP and our application will need to do the following:

- Connect to a WebSocket Server API (existing & well documented. WebSockets are based on TCP which is supported by the chip).

- parse JSON text commands received from the server and reply with JSON responses.

- help define an interface to be used when integrating the chip into our hardware (e.g. via UART interface or others)

- read GPS location (supported by chip)

The Application will connect to the WebSocket server and send a boot notification with information read from the UART interface and the GPS module. It will respond to server initiated commands and translate them to messages for the UART interface.

More details to be shared with potential candidates during the interview process.

You have:

- extensive experience with embedded firmware development (C / C++)

- Experience with SimCOM chips or comparable. SIM7100E experience a huge plus.

- a track record of well written and designed code, an enthusiasm for documentation, automated testing and maintainable / extensible code

- appetite to be part of an awesome team that might change the world ;-)

Skills: Assembly, C Programming, C++ Programming, Engineering, PICK Multivalue DB

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About the Employer:
( 8 reviews ) Dandong, China

Project ID: #17178068

8 freelancers are bidding on average $1209 for this job


Hi, I hope you are doing well. I have experience in Embedded system programming and worked with GSM SIM800, SIM808, SIM 900 Modules and implemented similar applications. I have understood your project requirement More

$1526 USD in 20 days
(51 Reviews)
$1250 USD in 20 days
(28 Reviews)

Hello I am really interest on your project. I am have experience with sim5320 and sim800A. I can help you on this. Hope we can cooperate. Thank you very much.

$1011 USD in 15 days
(25 Reviews)

Dear Client! I have read your post carefully with my interest. I have had great experience programming Visual Studio C#, Visual Studio C++, Python, Perl, Eclipse CDT, gcc, g++, and many other projects for 6 years More

$1250 USD in 20 days
(15 Reviews)

Hello. I read your job post carefully. I have good experiences with Raspberry Pi programming. I can be good help for you. Looking forward your interview. Best Regards.

$1250 USD in 20 days
(2 Reviews)

I am Excellent at the following : - Embedded C Programming. - Microcontrollers :AVR, PIC and STM32. - Wireless technology : SimCom SIM800 series, SIM900 series and etc. - SimCom AT commands for TCP Connection Creati More

$1111 USD in 7 days
(4 Reviews)

I can do your job.

$833 USD in 30 days
(4 Reviews)
$1444 USD in 10 days
(1 Review)