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$1500-3000 SGD

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Lagt ut over 6 år siden

$1500-3000 SGD

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Handheld Potentiostat device prototype for electrochemical measurements. We need a handheld potentiostat with onboard processing, storage and BLE connectivity. The potentiostat circuit can be inspired by the opensource information available here: [login to view URL] The link above already includes basic schematics and circuits required for the signal acquisition to assist/inspire your development. The reader above still requires a pc to do the analysis and has limitations regarding the number of data points it can handle. We want that to be included in the reader device. Critical Specifications required: - Able to read DropSens triple screen printed electrode - Connector for DropSens Screen-printed electrodes (3-electrode system) - In terms of specification what is important is that we can perform measurement with the following settings: Cyclic voltammetry (CV)* run at 100 mV/s from 0.35 V to 0.8 V for 20 cycles + 5 cycles, followed by 20 mV/s for 3 cycles. What we need is to record only the last cycle value, but of course we would prefer if we can record and store all the cycles (SD card ok as storage). - on board processing and analysis - BLE connectivity - Handheld format – roughly the size of an iPhone - 2-3 inch display - Battery powered - Storage capacity (Sd-card) - Connectivity via BLE - Connectivity to PC via USB - Plastic casing – white – sleek design – can be 3d printed Deliverables: - Working prototype meeting all the above critical specifications *We do not need to use other types of electro-chemical measurements, only CV at the specified settings. Interested freelancers should contact me with a detailed development plan/design and estimated cost of materials.
Prosjekt-ID: 14607637

Om prosjektet

12 forslag
Eksternt prosjekt
Aktiv 7 år siden

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12 freelancers are bidding on average $2 477 SGD for this job
Brukeravatar
Hi There, We are a company offering services in product development. We will deliver fully working prototype. Feel free to contact us. Regards, Shahbaz. Relevant Skills and Experience We are a company having in house facilty for PCB printing, Firmware development, PC/Android/IOS app development. We do have access to CNC machines and 3D printing facility. Proposed Milestones $1500 SGD - Schematics, BOM $1500 SGD - PCB layout, Gerber files $1500 SGD - Firmware, PC app development $500 SGD - Shipment delivery
$5 000 SGD om 60 dager
4,5 (46 omtaler)
6,9
6,9
Brukeravatar
Hello, we can do this project for you! We are a team of 15 graphic/product designers and developers with a solid experience in: Graphic Design: Adobe Photoshop (Photo manipulation & Website design), Adobe After Effects (Video Effects), Adobe Illustrator (Vector quality & Website design) & InDesign (Flyer, Brochure & Book design) , UI/UX. Website coding: PHP, Java, C Language, C++, C#, Ruby, JavaScript, Sql etc. All kind of programming languages ▲ Before taking any decision you can check our portfolio. You will definitely like our work and design quality. https://www.freelancer.com/users/profile.php?id=16762597 ▲ In case you have any questions please feel free to contact us. Looking forward to start working with you. Thank you for your consideration! Regards, Sasha S. OKAYdesign
$1 500 SGD om 14 dager
5,0 (2 omtaler)
5,4
5,4
Brukeravatar
My rough idea is to do it using teensy board which has more power compared to Arduino. Relevant Skills and Experience Electronics Engineer. Proposed Milestones $3000 SGD - TBD You need to store CV measurement or just raw values in SD card?
$3 000 SGD om 60 dager
5,0 (7 omtaler)
4,2
4,2
Brukeravatar
Hello, Honorable Hiring Manager, Relevant Skills and Experience I am Expert Web Developer & I have 7+ years of experience. Proposed Milestones $2500 SGD - Project Milestone
$2 500 SGD om 30 dager
5,0 (1 omtale)
2,8
2,8
Brukeravatar
Hi, I have gone through the project thoroughly and understood your project requirements. With years of experience and dedicated efforts, I will be glad to offer an outstanding services; if you can be kind enough to shortlist me for this project. Please give me a chance and initiate a chat so we can discuss further. Looking forward to work with you. Thanks
$1 500 SGD om 30 dager
5,0 (1 omtale)
1,6
1,6
Brukeravatar
Hi, Please Give me one chance to work for you, I have expertise in graphic and illustration designs, I can Design product for you as per your requirement. I Will sure give you 101% High quality, creative and fast work. I have done number of similar projects in past. I will show you my latest work on Chat. I am very interested in your project and also ready to start immediately. Looking forward for long term business relationship. Thanks and Regards, Poonam
$1 611 SGD om 1 dag
0,0 (0 omtaler)
0,0
0,0
Brukeravatar
Hey, how’s it going? My name is Mike, I’m a Web Designer & Developer from Boston. I've had a look at your project description and feel that my skills match your requirements perfectly. Relevant Skills and Experience Graphic Design, Front End Development, PHP, WordPress Proposed Milestones $2500 SGD - project milestone I recently did a very similar project which I can share with you.
$2 500 SGD om 30 dager
0,0 (0 omtaler)
0,0
0,0
Brukeravatar
A proposal has not yet been provided
$2 000 SGD om 7 dager
0,0 (0 omtaler)
0,0
0,0

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