Project Detail

LED Array  

LED Array is project number 320473
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Status:

Selected Providers: rayE

Budget: $30-250

Created: 09/25/2008 at 22:22 EDT

Bid Count: 18

Average Bid:
$ 224

10/25/2008 at 22:22 EDT

Project Creator: sjmusic2
Employer Rating: (No Feedback Yet)

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Description

LED Array design using dimmable high power LEDs - utilises PIC MCUs to provide pwm-based constant current circuit with feedback loop.

Rough schematic attached for direction which needs correcting to ensure safe functionality and optimised efficiency >90%.

Circuit also includes temperature sensors to reduce current if temperature exceeds tolerances.

LEDs will be lit for 10hrs/day, 7 days/week.

PSU is 12v, 30A. Two separate circuits will run from the PSU powering a) 18 x Seoul SC P7 white LEDs (Vf=3.6V, If=2.8A) and b) 10 x K2 Royal Blue LEDs (Vf=3.85V, If=1A)

Basic Requirements :
1. Safe (for use in USA), efficient and cost-effective circuit design
2. Components should not be surface-mount packaging
3. PIC program files, eg. C or BASIC, and hex

Additional options :
1. Daily event timer (user defined on/off)
2. LCD display for dimming %, sensor temperatures and timer settings.

Additional information will be supplied to the successful developer.


Additional files submitted:
Fish Tank LED Array rev 6-1.jpg

Job Type

Messages Posted:2 View project clarification board Post message on project clarification board

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250

18 days

09-30-2008 14:21 EDT

Hello, We are an Electronic Design House based in Pune, India specializing in Prototype Projects and Design Documentation. We have a strong technical team that specializes in Embedded Hardware , Firmware and PC Based Software. We bring to the table strong design and documentation skills. We can understand the design and document it as per user needs. The engineers are extremely fluent in English and working with them will not be an issue. Development work gets done in India and we have a sales team in West LA. We have an excellent network connectivity, VOIP setup for direct communication with US/European/Middle East clients. We have extensive experience in PIC and we will be able to do this project for you for $500 in a timeframe of 3.5 weeks along with the hardware and software. I will have to bill separately for the hardware though. I have said $250 in the bid amount as I cannot enter $500 You will get a high quality board along with reliable and tested firmware. We have a lot of clients in the US who can give you similar inputs. I would be glad to furnish references if required. Thanks and Regards Ajay

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200

15 days

09-29-2008 03:23 EDT

I think I can help you with your project. I am an electronics engineer with expertise in analog + digital design, PCB layout. I am very comfortable with PIC micro controllers, so the uC interface will be doable too. Do let me know if you need to see any examples. Looking forward to working with you.

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250

30 days

09-25-2008 22:39 EDT

Please see PM

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200

30 days

09-27-2008 06:02 EDT

i think i can help u in that , feel free to contact me,thanks

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250

30 days

09-26-2008 01:26 EDT

(No Feedback Yet)

We can provide you a better solution. Feel free to contact us. Reagrds, Geo

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250

30 days

09-26-2008 03:56 EDT

(No Feedback Yet)

Please see your PM for details

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200

30 days

09-26-2008 05:14 EDT

(No Feedback Yet)

We can do it. View pm

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250

21 days

09-26-2008 05:47 EDT

(No Feedback Yet)

LED Expert here...please see private message board.

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250

7 days

09-26-2008 06:19 EDT

(No Feedback Yet)

Dear sir, Please see PM

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195

25 days

09-26-2008 07:59 EDT

(No Feedback Yet)

I can do this design. Please mail me for details.Pl also check PM.

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250

100 days

09-26-2008 10:57 EDT

(No Feedback Yet)

Please See PMB

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250

25 days

09-26-2008 23:33 EDT

(No Feedback Yet)

I am interested.

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240

25 days

09-27-2008 06:56 EDT

(No Feedback Yet)

Please see the PM

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200

30 days

09-27-2008 12:31 EDT

(No Feedback Yet)

Hello! I'm an experienced electronics & microsystems engineer and programmer and I am willing to help you on this project. It can be done promptly and I will provide you with everything required to produce it. I can also provide support after then for assembly, updates, etc.

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230

20 days

09-30-2008 14:10 EDT

(No Feedback Yet)

I can do it!

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175

20 days

10-02-2008 08:11 EDT

(No Feedback Yet)

I can do the project with Atmel's microcontrollers. A working schematic and source code can be provided.

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200

20 days

10-07-2008 15:02 EDT

(No Feedback Yet)

Hi There, I can give you the deliverables in 120 days.

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200

10 days

10-07-2008 23:44 EDT

(No Feedback Yet)

please furnish the details of your requirement

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