Analog interface from sensor to phone

We have developed a cheap way to interface a sensor to a phone. We want to build a prototype. This project will consist of two phases. Prototype 1 will use thru hole components and be manufactured using this process:

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I have access to a laser cutter and I like to build things.

The second stage will add some functionality and redo the board for manufacturing at a board house. It will use surface mount components. No components smaller than 0603.

I need people with these talents:

Good English Communication Skills

Ability to understand instructions and perform accordingly

Analog Electronics Design (this is an analog product. NO DIGITAL)

PCB design

I'm including a schematic. It has two known issues with the circuit which heats the sensor. Read the data sheet for the sensor and the schematic. If you can tell me the problems with the heater circuit it will highly influence my decision to award the project.

If you don't have the skills required, don't bid. I will not pay anything up front. I will only pay when useable designs have been delivered. If you can't do this project, then it will be a waste of time for us both.

Evner: Elektrisk Ingeniørarbejde, PCB Layout

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Om arbejdsgiveren:
( 2 bedømmelser ) Phoenix, Philippines

Projekt ID: #4202635

Tildelt til:


Hi, Quality design solution with on-time delivery guaranteed if offered. Thanks.

$105 USD in 60 dage
(9 bedømmelser)

7 freelancere byder i gennemsnit $614 på dette job


hi, i can help.

$650 USD in 12 dage
(39 bedømmelser)

Please check your PM

$200 USD in 20 dage
(19 bedømmelser)

The employer must provide all the correct information and verified.

$2500 USD in 5 dage
(15 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

$200 USD in 4 dage
(10 bedømmelser)

Hello, I can do this.

$145 USD in 7 dage
(11 bedømmelser)

If you need professional help hire me. Bye

$150 USD på 1 dag
(0 bedømmelser)

Hi. I can help.

$500 USD in 20 dage
(0 bedømmelser)

Congrats on your nice ideas for the sensor. You should patent this I guess.

$200 USD in 5 dage
(0 bedømmelser)