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PCB upgrade and redesign


We’re looking for someone to modify an existing PCB to include some changes. The freelancer will be expected to update the design, provide complete schematics, PCB CAD design and fabrication files, arrange for the circuit to be made and test the first PCB.

Schematics, OrCAD PCB Design, Bill of Materials and Gerber files related with the current state of the project will be supplied

PCB Function overview

The current PCB connects to a PC using a USB cable. The main functions of the current PCB, which are currently designed, are:

• Power supply of all the components.

• Piezoelectric actuators driver.

• Two Serial ports.

• Sensors conditioning and reading through external DAQ cards.

• Drive a resistive power heater.

• Configuration files storage.

• Servomotor driver.

Schematics, OrCAD PCB Design, Bill of Materials and Gerber files related with the current state of the project will be supplied.

Additional features

In addition to the previous functions we will like to add to the new design:

• Additional connectors to collect unused DAQ Card I/O ports and power supplies.

• Replace current piezoelectric actuators drivers with a custom one.

• Replace resistor heater driver with a custom one.

Changes to be implemented

• Replace the off-the-shelf analogue voltage amplifiers with our own design. We will provide a schematic of an OpAmp circuit which we have already designed and tested successfully.

• Replace an OEM PID controller used to heat a resistive heater to a constant temperature with a custom designed circuit.

• Add an EEPROM memory for a Dual FTDI chip (a schematic will be provided)

• Maintain dimensions of the PCB below 250mm length, 130mm wide. The height of the PCB plus the components attached to it, plus the length of the spacers should be limited to 30mm. In order to fulfill this requirement it will be necessary to apply changes in the placement and election of circuits, components and connectors.

• Rearrange connections to DAQ Cards.

• Addition of some connectors gathering signals in the PCB.

• Rearrange and select power supplies in the PCB.


1. Design of the alternative PID controller for the resistive heater. Design of piezoelectric power supply and drivers (a solution will be suggested). Complete schematics of project. The schematics should be sent to us. Expected time for this milestone is 1 week. We will make a milestone payment at this stage.

2. Once the schematics are approved, the next step will be to complete the PCB design; provide a full set of Gerber, drill, placement and BOM files. Expected time for this milestone 1 week. We will make a milestone payment at this stage.

3. Once PCB and BOM are ready, the freelancer will arrange for the fabrication and population of the PCB. Costs will be covered by the previous payment.

4. In the final step, the freelancer is expected to test and guarantee the functionality of this PCB. Expected time for this milestone is 1 week from the reception of the PCB. Remaining fees paid to freelancer.

Evner: Kredsløbs Design, Elektronik, PCB Layout

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Om arbejdsgiveren:
( 13 bedømmelser ) Gavà, Spain

Projekt ID: #6023409

Tildelt til:


Hello, I have been associated with Hardware design (Circuit / Electronics design), PCB design, PCB Manufacturing, Component procurement and PCB Assembling for over 7 years. I have used various CAD/EDA tools for PCB Flere

$833 USD in 15 dage
(106 bedømmelser)

18 freelancers are bidding on average $652 for this job


hi, i am an electrical engineer. i have expertise in embedded system design.i can help you with this project. Please check my profile for my previous work experiences. let me know if you are interested in the bid so Flere

$850 USD in 10 dage
(40 bedømmelser)

hello, i am an electronics engineer and an embedded system designer with expertise in both analog and digital design. i also have good PCB design skills. i am qualified to work on this project. looking forward for you Flere

$450 USD in 10 dage
(33 bedømmelser)

I'm Electronic engineer from university of Moratuwa and I would like to use my extensive Embedded system design and PCB design knowledge to do this projects . I'm so experienced with Arduino, PIC ,DSpics and expert wit Flere

$722 USD in 10 dage
(6 bedømmelser)

Hello, my name is Leonardo Takahata and I'm an electronic engineer with large experience on embedded designs. I use Altium Designer for PCB projects. Is this a problem to you? Will be a pleasure to work with you. Re Flere

$750 USD in 10 dage
(16 bedømmelser)

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Flere

$555 USD in 3 dage
(19 bedømmelser)

Hello mister, I am electronic engineer. I have a great experience designing PCB, I can work at ORCAD, ALTIUM, EAGLE or PROTEUS. If you desire I can send you a video of PCB done by my, thus you can evaluate my skills. Flere

$666 USD in 21 dage
(5 bedømmelser)

Hi, I have 15 years of experience in electronic circuit design,programming and [url removed, login to view] experience include microcontroller and FPGA based system design using C,VHDL and verilog. I can do this work for you. Than Flere

$555 USD in 28 dage
(4 bedømmelser)

I am very much interested in doing the project. I will do the designing it in kicad (free software). You can check my profile in case of clarifications.

$277 USD in 10 dage
(1 bedømmelse)

• 3+ years of experience, Designing and Hardware Development as Embedded Design Engineer with System design team in development of hardware products from requirement analysis to system study, digital circuit design, h Flere

$555 USD in 24 dage
(0 bedømmelser)

I am confident I can make pcb layout perfectly, as long as schematics is provided. How many layers do you need ? If you intend to attach motor to the pcb, care must be taken to not induce noise on other parts of the pc Flere

$277 USD in 14 dage
(0 bedømmelser)

i would be the best one to complete it in the way you need. i had experience in the PCB design for almost 3 years. i am a Masters graduate from UK university of LEEDS.

$777 USD in 25 dage
(0 bedømmelser)

A proposal has not yet been provided

$555 USD in 10 dage
(0 bedømmelser)

Hi, I have read and understood the project guideline, so you can trust my sincere indulgence both in quality and time frame. I have done similar projects in the past. I will like to use my experience to serve you bet Flere

$526 USD in 10 dage
(0 bedømmelser)

Greetings Dear Freelancer, We are a group of electronic engineers here in Karachi Pakistan working on various electronics projects. We have experience in developing pharmaceutical temperature and humidity logging s Flere

$833 USD in 25 dage
(0 bedømmelser)

A proposal has not yet been provided

$555 USD in 10 dage
(0 bedømmelser)

Hello, I can do all changes in your PCB . I am Electronics engineer. I have made few PCBs for my projects and also have good team to work.

$555 USD in 10 dage
(0 bedømmelser)

Please feel free to contact us any time. Due to size requirement,the 2nd milestone is going to take 2 weeks. We believe in thorough testing in which we test every functionality of the [url removed, login to view] its 2 weeks bu Flere

$1666 USD in 10 dage
(0 bedømmelser)

hi i am doing phd on circuit design. i design circuit which is then fabricated. after i design pcb for testing. i design everything considering noise of component, matching also.

$333 USD in 10 dage
(1 bedømmelse)