Design and manufacture of a simple circuit - repost

(This project has been reposted because attachments were not all shown in the original and there appears to be no way to add them once the job is posted.)

In order to test a piece of equipment we support we are looking to develop 5 test boxes which will plug into the supported equipment and act as go/no-go testers of same equipment.

The new test box consists of an enclosure with three connectors (only):

1. HDB-15B male connector (D)

2. HDB-15B male connector (H)

3. [url removed, login to view] 3-pole female audio connector

A block diagram is shown in the attachment. The text box contains four identical passive networks (see attachment) for two sets left and right channels. The passive network for each channel consists of 3 capacitors and 3 resistors. A LTC2990 (or similar) measures four voltages and provides access to these via I2C.


1. the above functional description

2. answers to your questions

3. payment for your labour as well as manufacturing costs which you incorporate into your bid


1. schematic, layout and manufacturing files (we have no preference for the cad tool you use)

2. proposal for enclosure

3. documentation showing that the box you have designed works. We will not provide an I2C master, you'll need to have access to one yourself to be able to demonstrate that the voltage measurement is working correctly.

4. five fully built, fully enclosed units. We can provide you with a FedEx account number so no need to include shipment costs to us within your bid

5. you look after the component procurement, manufacturing and assembly of the boxes

6. a bid that includes the material, build and assembly costs. If you need to bid with some risk in these costs please specify the degree of uncertainty in your bid. The expectation is that given the simple nature of this project we should be able to get fairly accurate estimates at the time the bids are made.

Beceriler: Elektronik, Mikrodenetleyici, PCB Düzen

Daha fazlasını gör: working at fedex, what to include in a project proposal, what is a job proposal, what is a bid proposal, the design network, simple design tool, proposal of a project, proposal answers, payment enclosed, microcontroller job, master electronics, job proposal layout, job cad design, electronics design job, design degree, cad simple design, cad design job description, cad design job, cad design box, block design

İşveren Hakkında:
( 11 değerlendirme ) Shenzhen, China

Proje NO: #4142748

Bu iş için 11 freelancer ortalamada $432 teklif veriyor


Hi dear , i can help you see portfolio for samples of works

$250 USD in 5 gün içinde
(17 Değerlendirme)

I have experience with PCB Designs for micro controller based projects, Arduino shields. Development board for arduino/Atmel. I use CadSoft Eagle.

$500 USD in 20 gün içinde
(3 Değerlendirme)

hi, do you n eed professional help?

$400 USD in 10 gün içinde
(8 Değerlendirme)

Hello, I am interested in you project. Please check your PMB. Thank you.

$250 USD in 15 gün içinde
(1 Yorum)

I am very interesting for your item,could you give me more information about your item?I think something is not so clear,i will PM you

$250 USD in 60 gün içinde
(0 Değerlendirme)

Check my web page: elehybrid.com. My temperature PID module is almost same to your project. For michrochip's PIC, I2C, SPI, RS232, CAN bus, I have ready code. I have in house PCB manufacturing, using Protel t Daha Fazla

$400 USD in 10 gün içinde
(0 Değerlendirme)

HI, The project is simple, I am sure to can a very good job, I have in house a little mechanical machines to rework the boxes. I did not understand where the led you show on front panel have can be connected (I und Daha Fazla

$450 USD in 7 gün içinde
(0 Değerlendirme)

Hi, I have 6 years experience with multilayer PCB design. I offer cheap and reliable design.

$600 USD in 20 gün içinde
(0 Değerlendirme)

Clionetech is a team of professional hardware and software engineers. We provide circuit design, PCB layout, MCU coding and sample building.

$750 USD in 10 gün içinde
(0 Değerlendirme)

HI I have long experience in schematic and pcb design ; i developed circuits for temp sensor with I2C, see portfolio. So i can. Bye

$500 USD in 10 gün içinde
(0 Değerlendirme)

Electronics lover is here for your assistance. Checkout your inbox

$400 USD in 10 gün içinde
(0 Değerlendirme)