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Embedded Linux Developer with Cellular Modem experience

$15-25 USD / hour

Closed
Posted almost 8 years ago

$15-25 USD / hour

I'm looking for an experienced embedded linux developer to write AT code or using Linux's 'ppp' drivers to communicate with a cellular modem from Multitech, in order to perform HTTP/HTTPS POST requests with a remote server. The remote server is already created with a working REST API. The scope of this task is currently only around the ppp or AT drivers in order to communicate with the server. The acceptance criteria will be posting a small, pre-defined JSON packet to the server (with a given URL) from an embedded linux computer over a cellular modem using AT commands, or ppp. If successful, there may be further work on this project (as this stage is a proof-of-concept). PLEASE: write a word SERFCOMPANY before your response.
Project ID: 10796263

About the project

13 proposals
Remote project
Active 8 yrs ago

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13 freelancers are bidding on average $24 USD/hour for this job
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SERFCOMPANY Hello. I have 10+ years of experience in Linux programming and was working with Linux since Redhat 2.0(around 11 years ago). I am familiar with ppp and AT commands and I think I'm the best choice for your project :). Please contact me and lets talk about the details. Thanks, Helmot
$21 USD in 10 days
4.8 (138 reviews)
7.6
7.6
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I have more than 5 years experience with various embedded linux development boards (BeagleBoard, Raspberry Pi, Wandboard), having worked on both kernel and device driver development and userspace development, with Qt for GUI. I have worked previously on a project with pppd for modem configuration and used google protobuf for communication with the server, but using JSON should be easy.
$22 USD in 20 days
5.0 (1 review)
4.2
4.2
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Hi, I am an Electrical Engineer and an Embedded Systems Expert with 3+ years of Industrial Experience. I have experience with almost every Embedded Systems Platform used in the Industry. I have experience with ARM (STM32, LPC1768), AVR (ATmega2560 etc), PIC(PIC18F, PIC16F), Infineon(AURIX family) , Renesas (RL78, V850), TI (MSP430), Freescale (MPC family) and many more. I have done many projects on these platforms. Some of them are: 1) Implemented Phase Vocoder on STM32. 2) Implemented speed-meter that would find out the speed with which you walk. This we did using STM32 and accelerometer 3) USB HID mouse on PIC18 4) 32-point realtime FFT implementation on PIC18 5) MP3 Player implementation on STM32 6) Implementation of CAN and LIN drivers on the Infineon, Freescale and Renesas Boards and many more... Infact I have done a project very similar to this in which a Kinetis Freedom Board was used with u-blox modem for connectivity. The protocol ppp was implemented on the Freedom Board and through this the connection to server would be made using the REST API. I could really help you with this project. But I would require the hardware to be accessible to me. But I think that with my skills and expertise I am the best guy to do this job for you as I have the experience. Looking forward to working with you on this project Regards, Osama
$20 USD in 20 days
3.8 (3 reviews)
3.8
3.8
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Hi, Understood your requirement. I have a prior experience of such applications in which GSM modem is driven by the embedded linux platform. Infact I can demonstrate some part as well. Moreover I have a prior experience of implementing the GPSgate client protocol on the embedded linux platform.
$17 USD in 10 days
3.6 (4 reviews)
3.7
3.7
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SERFCOMPANY Hello, and thank you for the opportunity to bid on your project. I've used various cellular radios in several previous projects, including GPRS, HSPA and LTE modems from Telit and Multitech. Connecting a modem like this to Linux is straightforward, but the devil is always in the details. I am happy to discuss the particulars with you either through Freelancer chat or email (andrew * mixdown dot ca). Thanks again for the opportunity; I am looking forward to working with you! Regards, Andrew
$61 USD in 35 days
5.0 (1 review)
2.7
2.7
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SERFCOMPANY I am interested in your project. Description seems doable. Contact me in private to talk in more details. Best regards, Ivan
$22 USD in 30 days
5.0 (2 reviews)
2.3
2.3
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Dear Client, Greetings from Flowgica technologies, I have experience with these skills. We do have similar experience doing something similar to yours therefore I am looking forward to discuss and move ahead. please check our freelancer portfolio at https://www.freelancer.com/u/mmadi.html?page=portfolio I am ready to work with you,kindly waiting for your response. Thanks & Regards, Mmadi
$20 USD in 30 days
0.0 (0 reviews)
0.0
0.0
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I have finish the project like this. I can finish the project in 1 hour
$25 USD in 1 day
0.0 (0 reviews)
1.0
1.0
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Have over a decade of experience in embedded linux platforms. Part of a company that makes IoT devices (based on embedded linux platform) communicating meter data to a centralised data repository using JSON and MQTT. Definitely can work on this and also take up additional responsiblities. We have all the required expertise.
$16 USD in 40 days
0.0 (0 reviews)
0.0
0.0
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SERFCOMPANY Professional embedded C/C++ programmer and Unix/Linux Guru for 15+ years, Master's degree in Computer Science. I have developed a program to send SMS messages over AT commands to a modem in an industrial embedded linux environment. Please provide more details :)
$25 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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I am experienced in modem AT commands. And I am expertise in DBA, network administration, programming.
$22 USD in 10 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UKRAINE
Edinburgh, Ukraine
5.0
2
Member since Feb 22, 2015

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