We would like to build a Hydroponic control system based on adruino board or a like and android software. The equipment must control the watering solution of the system.

Probes: 1. pH meter 2. EC/TDS meter 3. Water temperature meter

Valves and Switches: 1. Peristaltic valves 2. On/off switches

Watering solution control

The system need to adjust continuously the EC/TDS level and feed the water tank with the nutrient solution. The nutrient solution is a combination of 4 nutrients. These nutrients have a certain percentage value on a week cycle. The growing period is divided on week cycles and each cycle has different percentage values of the nutrients. This is controlled thru the peristaltic valves.

Next it needs to adjust water temperature thru an on/off switch of a water heater.

And finally it needs to adjust the pH level like above.

This cycle is continuous. The values of temperature and pH are stable, but adjustable thru the main control software. The PPM levels and percentage of nutrients are stable on week cycle but the week cycles are customizable thru the main control software.

The main control software must be written on android and run on a smartphone or a tablet.

It must provide user friendly interface to adjust the above values and ring alarms when need it. It must connect to the arduino core and keep records of previous periods.

More info:

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The above price is for design payment the equipment list will be provided.


Ps we would like to inform you that we need a hardware design based on arduino board or a like besides the software on android

Skills: Android, Arduino, Electrical Engineering, Electronics, Microcontroller

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About the Employer:
( 0 reviews ) Agios Stefanos, Greece

Project ID: #4483889

16 freelancers are bidding on average €1551 for this job


hi, i am an electrical engineer and an embedded system designer. i can help you with this project.

€9898 EUR in 120 days
(40 Reviews)

Hi, I can do this job.

€715 EUR in 30 days
(27 Reviews)

I am ready to start the job

€1100 EUR in 20 days
(13 Reviews)

please check the private message..

€772 EUR in 6 days
(5 Reviews)

visit [url removed, login to view] and [url removed, login to view] I can do it on arduino mega and touch screen TFT or android device. Check PMB for more details.

€666 EUR in 30 days
(5 Reviews)

Hi there i can do it.

€3300 EUR in 45 days
(3 Reviews)

Hi, I'm a mechatronics engineer and I can help you. Please see my private message. Thanks.

€440 EUR in 5 days
(1 Review)

Be so Good,They Can't Ignore You. Please check PM for smart solution

€721 EUR in 25 days
(14 Reviews)

hello, after checking ur requirements, it comes in my mind that i am the best developer to do ur project, please give me a chance to show my efficiency before u, my freelancer username is my skype and gmail, waiting to More

€367 EUR in 11 days
(2 Reviews)

Respected Client, Please check PMB for listing and confident to complete the project with quality services.. Best Regards

€773 EUR in 10 days
(2 Reviews)

Hi i can help you . Kindly read my private message.

€550 EUR in 30 days
(2 Reviews)

Read Pm sir :)

€550 EUR in 3 days
(1 Review)

Hi, We take pleasure to introduce ourselves as a team of experienced professionals in the fields of Mobile Application Development and Design. Currently, our expertise includes Android, Blackberry & iPhone plat More

€740 EUR in 14 days
(0 Reviews)

Kia ora! [url removed, login to view] are a NZ based web and software design company who have seen you here on the freelance market and are really excited about working with you and treating you to the full service, professional ex More

€772 EUR in 21 days
(0 Reviews)

Dear Sir, Greetings! We are WeExcel Technologies Pvt. Ltd with 5 years of experience under our belt. We are really interested to work on your project. Please see PM. Thank you. Regards, WeExcel.

€1545 EUR in 30 days
(0 Reviews)

Dear Hydroworks, This sounds like a very fun project. I am certain I could help you with it since I have the required skills, as well as experience in developing similar systems.

€979 EUR in 30 days
(0 Reviews)

I have 6 years experience in arduino hardware and programming. Also, I have 2 year experience in building automation industry and done many projects including telemetry operations. Thank you for your interest. Best Reg More

€715 EUR in 30 days
(0 Reviews)

I can provide you the right solution.

€660 EUR in 25 days
(0 Reviews)

Hi, I've had alot of experience with embedded control systems, as well as programming. I've worked with the Arduino platform on many different occasions. I also have experience working with similar hydroponic systems t More

€421 EUR in 7 days
(0 Reviews)

Decades of experience in developing embedded systems in industrial process control and automotive from prototyping to production-ready-design are offered for project success.

€1650 EUR in 65 days
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