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$8-15 USD / hour

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Posted over 8 years ago

$8-15 USD / hour

I am looking for someone to help me design a PCB microcontroller capable of: 1) Running off a portable LiON battery. 1) heating a filament / coil / pad upto 60-70 degrees centigrade. 2) sensing temperature and control it from overheating beyond that point. 3) having an exposed USB socket that can use the LiON battery for charging mobile devices.
Project ID: 9345887

About the project

11 proposals
Remote project
Active 8 yrs ago

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11 freelancers are bidding on average $13 USD/hour for this job
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Hello, I have done so similar project like yours. I have made PCB design which can be controlled by Android. This device has heat element with 100K thermistor and rechargeable Li-ion Battery(7.4V - 2A, 4400mAh). There is android app. which you can open/close and set tempurature of Heat element. I have very good experience about this kind of project. We can talk detailed via chat for more informations. Best Wishes, Ali ŞERBETÇİ
$10 USD in 10 days
5.0 (33 reviews)
7.5
7.5
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Hello! We're experienced electronic and firmware engineers. We have more than 17 years of experience in electronic devices design and firmware development. We have worked with huge amount of various models of Atmega MCU. We have written software for Atmel on microcontrollers in assembly, in C programming languages. One of our project has 1000s of devices with ATMEL MCU inside. And this MCU has our own firmware. For last few years we have been working with Linux based SBC (Rasbperry, Beaglebone, other brands). We decided that we can help you with this task. We would like to cooperate. So we're open to any proposals. Sincerely, your team
$12 USD in 36 days
5.0 (1 review)
4.2
4.2
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Hi my name is Egidijus, Your project is interesting for my, so I could help you, cause have exact experience for it. I am working on PCB design with altium and AVR programming is C, so to make your project there is no problem. Okey, so what would be your battery, maybe standard 18650 would be good ? Is it okey to use Atmega48PA ? Do the temperature point should be controlled by outside, or just written in the code ?
$10 USD in 20 days
5.0 (3 reviews)
1.0
1.0
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Hi, my name is Keith and I am a professional engineer living in Tennessee, USA. I graduated from Vanderbilt University with a mechanical engineering degree in 2012. Previously having worked in the aerospace industry, I am now a full time contractor and work on a wide variety of product designs for personal customers, Kickstarter businesses, and entrepreneurs. Feel free to take a look at my profile and portfolio, I think you will be pleased with my qualifications! I am glad to talk about the details if you'd like to message me here on Freelancer. I look forward to the possibility of working on your project and thank you for your consideration. - Keith A.
$22 USD in 30 days
5.0 (2 reviews)
0.8
0.8
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Hello how are you? Before going to negotiate and progressing further i would like to know few details which will make it easy for me to understand the feasibility of the project. The board can be designed by me as we are in the same country i can fabricate and send you the sample in courier. so the points i need is 1. What is the capacity of the battery 2. What is the backup you are expecting from such a battery 3. what is the maximum size of the PCB 4. What is the time you want this project to complete 5. What is your budget on this project for the components and all apart from freelancer fee 6. What is the budget you can allot me for working on this project. We can go further and i can do this with ease as i have done many projects of this kind you can check my portfolio and get back to me. Best regards Krishna
$14 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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If you already have the schematic as an eagle project, then it would be easier to make a layout. I guess it would be a 2 sided PCB.
$12 USD in 3 days
0.0 (0 reviews)
0.0
0.0
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Working with embedded systems. Projects: battery management systems, GPS tracking systems, small sonars and etc.
$12 USD in 25 days
0.0 (0 reviews)
0.0
0.0
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More than 19 years of experience in electronics and engineering in areas of R&D, testing and production Mentor Graphics(PADS), SABER, SPICE, PROTEL99SE(Altium)
$17 USD in 25 days
0.0 (0 reviews)
0.0
0.0
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Hello, I am embedded systems designer with over 15 years experience designing temperature controllers for industrial environment and would love to work on this project. I designed my latest temperature controller for a Canadian company/client recently. regards, Ali
$12 USD in 40 days
0.0 (0 reviews)
0.0
0.0

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