Design me a Product

$250-750 USD

Avslutat

Publicerad

nästan tio år sedan

$250-750 USD

Betalning vid leverans

Looking to create a very simple, small low power, light weight, circuit that can detect chlorine in water within a fixed range. The circuit would show green if both Total and Free fell within range and red if not. Free Available Chlorine Residual Total Chlorine Residual Total chlorine residual indicates how much chloramine residual is present, compared to free chlorine. This value should never exceed free available chlorine residual by more than 0.5 ppm. Superchlorination ensures chloramine levels remain at or below 0.5 ppm.

Chemical Engineering

Electrical Engineering

Product Design

Project ID: 6180184

Om projektet

7 anbud

Distansprojekt

Senaste aktivitet tio år sedan

Ute efter att tjäna lite pengar?

E-postadress

Fördelar med att lägga anbud hos Freelancer

Ange budget och tidsram

Få betalt för ditt arbete

Beskriv ditt förslag

Det är gratis att registrera sig och att lägga anbud på uppdrag

7 frilansar lägger i genomsnitt anbud på $603 USD för detta uppdrag

@Davelelievre

I have designed an ORP probe interface in the past that worked very well. Is ORP sensing good enough for your application? The current price and timescales are only place holders to allow me to communicate with you Best Regards Dave Lelievre

$555 USD Om 10 dagar

4,9

(13 omdömen)

5,7

@PSL1

Sir, We are a group of Electrical Engineers with 5 years of experience. Please consider our services. Quality is our Guarantee. Regards

$1 000 USD Om 10 dagar

5,0

(14 omdömen)

4,0

@kursadgulereem

hi... i can design your project in Altium Designer quick and easily.. i ll provide to you schematics, PCB, BOM and gerber files and what you need im interesting your project, pls give me more details.. thanks..

$444 USD Om 3 dagar

4,8

(5 omdömen)

3,0

@fench85

Hello .I from Ukraine .I will be happy to help you with the job .If you are interested in me as a performer, email me and we'll talk more specifically all the details, terms and price.

$555 USD Om 5 dagar

0,0

(0 omdömen)

0,0

@VertexMemphis

Hi there! My name is Keith and I am a professional electrical engineer here in the US. I now work solely as a contracting designer and freelancer. I am knowledgable in all sorts of microcontroller implementations, circuit design, embedded systems, mechanical systems, and more. My industry experience and university are essential in completing a successful engineering project, from the conception and CAD to prototyping a finished product. Your specific design project looks great and I am confident I can do it well! I invite you to have a look at my resume and portfolio on my profile page and see a bit of what my talents are able to bring to your project. And please don't hesitate to contact me with any questions before choosing a bidder. Thank you for considering! - Keith B.

$666 USD Om 10 dagar