Project Detail

Temperature Fan Controller with Sleep Mode  

Temperature Fan Controller with Sleep Mode is project number 545836
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Status: Closed
(Selected Service Provider)

Selected Providers: NaliHetti

Budget: $250-750

Created: 11/07/2009 at 21:19 EST

Bid Count: 33

Average Bid:
$ 511

12/07/2009 at 21:19 EST

Project Creator: bdzin View PM Post PM
Employer Rating: (No Feedback Yet)

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Description

We need a circuit designed that will allow us to control 3, 12vdc, 4 wire PWM fans using a minimum of 20KHz frequency. If needed, sample fans will be supplied for testing. The circuit must have a thermistor to allow temperature sensing, a potentiometer to set a minimum fan speed, another potentiometer to set low temperature at which to allow the control to shut the fans off until another potentiometer setting for the temperature that will again actuate the fans.

The circuit should allow a LED to illuminate when power is connected similar to the LED on DVD players and the like. Upon powering on, that LED (presumed RED in color) will turn off and another LED (presumed GREEN) will illuminate. The GREEN LED will continue to be illuminated during sleep mode but flashing intermittently to indicate it is in fact in sleep mode.

It will also be required of the system to remember it's settings and resume it's last operation after an unplanned or accidental power outage.

The circuit should be able to be manufactured using as many surface devices as possible, although if using a PIC micro controller that device would be socketed.

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250

5 days

11-10-2009 12:00 EST

plz select me. u ll like my work. plz see pm

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View PM Post PM

710

10 days

11-09-2009 23:33 EST

Please check the PM I sent you.

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View PM Post PM

450

25 days

11-09-2009 04:01 EST

Please check the PM

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View PM Post PM

300

5 days

11-08-2009 04:04 EST

(No Feedback Yet)

Hi, I am an Electronic engineer interested in this project because I am capable of doing it in the time frame.Looking for a positive response.Thanks

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600

15 days

11-08-2009 02:06 EST

(No Feedback Yet)

Please refer to your PM.. Regards.

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550

30 days

11-08-2009 02:34 EST

(No Feedback Yet)

I have to build the circuit now and start to test. I dont have a readily available one

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View PM Post PM

250

3 days

11-08-2009 02:38 EST

(No Feedback Yet)

My business partner and I have developed an avr-based product that does everything you're asking for but the contract fell through. Send me a pm/email if you want details/demonstration. We used a rotary encoder and an lcd interface to set min/max temp/speed but this could easily be changed to a potentiometer

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400

40 days

11-08-2009 03:14 EST

(No Feedback Yet)

we can do it easily as we have done such projects alredy

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View PM Post PM

250

3 days

11-08-2009 03:37 EST

(No Feedback Yet)

Hi ! Please read my PM

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250

30 days

11-08-2009 04:47 EST

(No Feedback Yet)

Hello, Sir pls check your PMB regards SilValley

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View PM Post PM

450

14 days

11-08-2009 05:16 EST

(No Feedback Yet)

hi; Please see the pm. regards

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View PM Post PM

1000

60 days

11-08-2009 05:40 EST

(No Feedback Yet)

We can do the Hardware and the software for controlling the fans. Our Deliverables are Schmatics Design, Layout Gerbers and the embedded Software Code. Please read the PM for more details Regards Somasundaram.I

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750

60 days

11-08-2009 07:12 EST

(No Feedback Yet)

Nice project. Nothing very special but it will be a lot of testing and manufacturing time delays. Of course, the bid will include two working prototypes. One for you and one for me :-) I'll need the fans too. Firmware maintaining is included (bug fixes, minor changings, etc).

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600

30 days

11-08-2009 10:06 EST

(No Feedback Yet)

We will be able to take up this. This can be completed with in the mentioned time. We assure the quality and reliability of the product.

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500

20 days

11-08-2009 10:54 EST

(No Feedback Yet)

I am interested.

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View PM Post PM

500

30 days

11-08-2009 11:56 EST

(No Feedback Yet)

if u let me do the job i will do it for you..setting up the PIC micro-controller is not goin to be a problem to me i guess =D

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250

7 days

11-08-2009 12:17 EST

(No Feedback Yet)

Can be done!

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300

15 days

11-08-2009 18:16 EST

(No Feedback Yet)

Already have design and build 12vdc fan pwm controller with pic mcu and LCD. This project is different but we can do it.

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500

7 days

11-08-2009 20:52 EST

(No Feedback Yet)

Hello, I'd recommend a MSP430 device as the heart of this design. That will keep external parts to a minimum and retain flexibility. I bid a week for the design to be complete, however that does not include building a hand-made prototype. We can discuss that should I be selected. I have more than 2 decades experience as a design engineer making electronic products for mass production. I will design the circuit and the program, and can design and have PCBs fabricated if you wish.

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250

20 days

11-08-2009 21:37 EST

(No Feedback Yet)

Hello There ! I am interested in your project , doing it as by your satisfaction . Regards .

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View PM Post PM

750

30 days

11-08-2009 22:17 EST

(No Feedback Yet)

Please check the PMB Thank you!

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View PM Post PM

250

30 days

11-09-2009 02:10 EST

(No Feedback Yet)

We are embedded professional having 2 year of experience in this field.please check your PMB.

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450

10 days

11-09-2009 06:16 EST

(No Feedback Yet)

Hi, I will use my ICT and electronics background to build the circuit for you. I have done almost similar projects. Thanks Amos

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350

10 days

11-09-2009 08:56 EST

(No Feedback Yet)

I can do this project exactly as you want. If you have other requirements we can find an appropriate solution. Please contact me, we can do any agreement.

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400

30 days

11-09-2009 12:19 EST

(No Feedback Yet)

Hi, We can provide you an efficient solution which meet your exact requirement. We have a team experienced in the embedded design field .Interested to hear more from you regarding this project. Regards, Geo

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250

20 days

11-09-2009 12:30 EST

(No Feedback Yet)

pls see pm for details

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View PM Post PM

600

25 days

11-10-2009 11:53 EST

(No Feedback Yet)

Price includes all design files, and 1 working prototype.

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2800

60 days

11-09-2009 18:39 EST

(No Feedback Yet)

It's a simple project. I will done this very accurate, but time to deliver is also depended from postal traffic (to Ukraine). My price also includes production of the device, and postal costs. Project will be done on MCU like some AVRs. Results from me are: working device, programm listing and exe, schematic in the PDF format, schematic and PCB in the Altium Designer, gerber files for PCB manufacturer.

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250

5 days

11-10-2009 01:03 EST

(No Feedback Yet)

Hi, please see PM.

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View PM Post PM

250

10 days

11-10-2009 02:06 EST

(No Feedback Yet)

Please see the PM

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View PM Post PM

500

20 days

11-10-2009 05:59 EST

(No Feedback Yet)

Dear Sir, View PM for more details. Regrads, SANDS Team

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400

20 days

11-10-2009 06:19 EST

(No Feedback Yet)

Hi, This project can be done even without a micro controller. But if you are willing to have a micro controller then it can also be done.

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500

20 days

11-10-2009 14:57 EST

(No Feedback Yet)

WE ARE GROUP OF PEOPLE HAVING EXCELLENT KNOWLEDGE IN CODING AND MICRO CONTROLLER.WE GUARANTEE WORK ON TIME.IF INTERESTED PLEASE LET US KNOW AS SOON AS POSSIBLE. THANKS.....

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