Design/Build Aquaponics Sensor Array

Need help with hardware and software design of a set of sensors (already specified) to monitor pH, temperature (Tc), Electrical Conductivity (EC), and Dissolved Oxygen (DO) in water. Prefer to use RasPi (with RTC) as the computer. Will be housed in a Pelican case, with a small display available for operating and configuring/calibrating. The sensors will be detachable via BNC plugs. Power will be AC, external. Communications will be either Ethernet or Wi-Fi (or both). The back end will be a data collection engine (preferably SQL-based) with a visualization and interrogation tool accessible globally via a web page. The collaboration will be remote, however, I can send hardware to you for prototyping and verification. IP will be retained by project sponsor (me!). We will agree upon a scope of work up front, and anything that falls outside of that scope is negotiable as a documented change order. The timeline is final product before August 27, delivered to Vancouver.

Skills in addition to those listed below: Sensor hardware integration, Linux, Python, SQL/PHP, electronics, prototyping, online collaboration tools (Slack, WhatsApp etc), maker skills, time management, documentation (of everything)

Skills: Database Development, Electrical Engineering, Electronics, MySQL, PHP

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About the Employer:
( 1 review ) Sheridan, United States

Project ID: #17205897

Awarded to:


My name is Scott McGimpsey, and I have experience with: -Raspberry Pi (v1, v3, Zero, Zero W) -Embedded Debian Linux -Python -MySQL (querying, display via web-interface, updating, writing data) -I2C Communication p More

$1333 CAD in 55 days
(0 Reviews)

8 freelancers are bidding on average $1333 for this job


Greetings. I just have a visual over your project's details and feel privileged to tell you that this correlates with my domain of expertise. Please message me as i will like to ask a few questions. I have a lot to d More

$1323 CAD in 20 days
(16 Reviews)

Hi, I developed poultry monitoring system using RPi and NodeMCU along with other sensors. It's no problem to develop your requirements. Looking forward to discussing in chat. Regards, Liu

$1500 CAD in 30 days
(31 Reviews)

hello i am interested in your project. i have a good experience in embeeded system programming. i have also worked with raspi in some projects. we can discuss more details in private chat. regards.

$1500 CAD in 60 days
(42 Reviews)

Hi I have read the description to design sensor array. We provide High quality and reliable services for clients: - Native iOS applications development for iPhone and iPad (5+ years) - Native Android applications More

$1250 CAD in 20 days
(18 Reviews)

Dear Sir, I am an Electrical Engineer and I have the relevant experience as you desire. My profile my look new but I have 12 years of experience in embedded system design and development. I have developed numerous d More

$1400 CAD in 15 days
(1 Review)

Thanks for viewing. We can help , if you can provide the sensor HW for prototyping. At least for the time being, send more info about the sensors. Rest we can do. We need to discuss this more. Have the drivers, done t More

$1250 CAD in 20 days
(1 Review)

I am an experienced programmer with 5 years of experience and take pride in providing a high quality of work for my clients. I will be glad to handle this project. Yours sincerely Laurel

$1111 CAD in 20 days
(0 Reviews)