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Design a small circuit board for me.

$30-250 USD

Mbyllur
Postuar over 8 years ago

$30-250 USD

Paguhet në dorëzim
Electrical engineers with experience in the electronics field required. We require circuitry for a breathalyzer unit to measure BAC levels accurately. The breathalyzer circuit will be controlled by an app on a smartphone, and will either be connected via a cord or Bluetooth ( whatever is cheaper) The specifications that I can publicly give are the circuit will be * compact and thin. *bluetooth or cable ( cheapest required) *communicates to smartphone *power required is pulled from smartphone if connected via cable *power can be a battery if bluetooth connectivity The app to read the results, has already been contracted out to another firm. Due to the clients demands and the sensitivity of this project, details will only be shared with freelancers with a proven track record in this field. We are looking forward for qualified freelancers to apply! No time wasters
ID e Projektit: 9556970

Rreth projektit

13 propozime
Projekt në distancë
Aktive 8 yrs ago

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13 profesionistët e pavarur ofrojnë mesatarisht $915 USD oferta për këtë punë
Avatari i Përdoruesit
A proposal has not yet been provided
$568 USD në 7 ditë
4,8 (180 përshtypje)
7,6
7,6
Avatari i Përdoruesit
Hiya, The bid is high, but you're basically paying someone to design a device from an idea/concept to something manufacture-able. This is called "NRE" and $5k is pretty low as far as NREs go. What you get when you have ME do this, is roughly outlined in the milestones. I'm located in Japan, and I have small lot production capabilities for prototypes/testing, as well as rework equipment for fixing problems, quick turn PCB prototyping in as little as 48 hours, same-day PCB assembly, etc. See profile for more details. The schematics and PCB layout would be done in Altium Designer. All design data (sch, pcb, project, datasheets, project notes, source code, etc) will be handed over at the end of the project. Partial non-essential data such as gerber files, compiled firmware (hex), etc will be provided for each milestone as appropriate. Parts for prototype assembly can be dropshipped to Japan from Digikey or Mouser, we have stock of common parts (resistors+caps), so only specialized parts will be needed. Can also source needed parts, we've got several shipments a week from China (when they're not on holiday) with 2-5 days delivery time. Hardware will be "designed for manufacturing", to optimize component count, PCB size, parts placement, to make sure it can be assembled in volume cheaply and easily. For hardware, appropriate (after discussion) STM32 MCU will be used, with bluetooth or OTG connection to phone. Firmware will be made with Keil. Feel free to message w/ questions.
$5 555 USD në 20 ditë
5,0 (6 përshtypje)
5,6
5,6
Avatari i Përdoruesit
Hello Dear, We are a team of experts with a cumulative experience of more than 50 years in the field of embedded systems, electronics, product development and prototyping. We offer services from product concept to Engineering and from prototyping to mass production. Our experts have years of experience in 8-bit, 16-bit and 32-bit architectures. we develop low power battery operated devices with high computational power. Our areas of expertise include smart grids, wireless, miliatry, telecomm and medical. I have checked your project and discussed it among my team. Yes, we are happy to offer you our services. Although we are new here but we have a professional team and years of history. We did a similar project in the past using MQ135 as the gas sensor. We would charge you US$ 500 for the following 1- Schematics design and PCB layout 2- PCB fabrication 3- firmware development 4- BOM and Parts sourcing 5- Board stuffing and debugging 6- x2 workable prototype boards All source files would be returned to the Employer. If you are interested please drop me a line. Regards For Coherent Technologies (Pvt.)Ltd Ch
$555 USD në 30 ditë
4,8 (33 përshtypje)
5,7
5,7
Avatari i Përdoruesit
I have 4 years experience in embedded systems. I can build the circuits using eagle Cadsoftware . and also with Bluetooth . but only I do circuit and coding for it not Include a Android apps.
$277 USD në 10 ditë
5,0 (3 përshtypje)
3,7
3,7
Avatari i Përdoruesit
Hi, I am expert with electrical engineer and ready start for the discussion with your. Please let me know if you are interested to working with me. Feel tree to check my profile pages for your reference. I am able to do this project. Please contact with me for discussion your project. Please talk to me detail your project. Ready to start the job now. Please see my bid once. Thanks. Thank you. Yours faithfully, Jaetoga
$150 USD në 7 ditë
4,0 (1 review)
0,6
0,6
Avatari i Përdoruesit
I am interested to do this i have worked with Bluetooth modules HC-05 and 06 and can develop an app for what you are looking for. I have found out some problems with your description we can talk in detail if you are interested to work with me. Best Regards Waqas N
$277 USD në 10 ditë
0,0 (0 përshtypje)
0,0
0,0
Avatari i Përdoruesit
I had completed so many of project with bluetooth controller. i have 3 years of experience in embedded system design and developement.
$133 USD në 2 ditë
0,0 (0 përshtypje)
0,0
0,0
Avatari i Përdoruesit
I’m an electrical engineer of 20+ years in the scientific instrumentation field with experience in EDXRF, Immunofluorometers, and gas chromatograph mass spectrometers. I’ve been involved in all aspects of system and board design. My strengths are in analog, documentation, and regulatory. I am new to freelancing and am enjoying it. To date I’ve done two jobs. 1 - strobing LED board for use in a self-defense weapon. 2 - Update a schematic using KiCad to add in a LAN circuit. I find it to be a good way to increase my knowledge and to open my mind to new ideas and ways of doing things I have partners that can help me with areas where I am less skilled. I would love to find out more about this project and to help you with it. Clearly among the first hurdles would be determining the cheapest communication method to phone (bluetooth or USB). How far would this project go? Circuit design, Schematic Entry, Prototyping, Layout, Fab and Assy. As details are hazy at the moment, my bid is higher than your specified range, but can move around as needed once more details are shared. For schematics I can use OrCAD, DxDesigner, EagleCAD, and KiCAD. For layouts I can use PADS and Eagle CAD. I am Rick Barfield from Austin, TX USA. Look me up and connect with me on LinkedIn.
$555 USD në 10 ditë
0,0 (0 përshtypje)
0,0
0,0
Avatari i Përdoruesit
Have you got a brethalyser sensor that you want me to use or is that part of the design too? I think wireless, or even a usb plug in unit will be the way to go.
$3 000 USD në 14 ditë
0,0 (0 përshtypje)
0,0
0,0

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Flamuri i NEW ZEALAND
christchurch, New Zealand
5,0
10
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Anëtar që nga sht 21, 2015

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