Find Jobs
Hire Freelancers

I need an electronics engineer

$250-750 USD

Closed
Posted about 5 years ago

$250-750 USD

Paid on delivery
I want to make a sensor that detects liquid and then sends an audible signal. It must be DC voltage because it needs to be portable​ and battery operated, the problem I have is that it needs to be very small and I can not buy one from the shelf.
Project ID: 18806475

About the project

35 proposals
Remote project
Active 5 yrs ago

Looking to make some money?

Benefits of bidding on Freelancer

Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
35 freelancers are bidding on average $474 USD for this job
User Avatar
Hi i am experienced electronics engineer with more than 8 years of experience. i can do it for you. please get in touch to discuss it further regards
$1,000 USD in 10 days
4.8 (280 reviews)
8.0
8.0
User Avatar
Hello, We are a design team include 3 groups: System Design, Layout PCB & Mechanical. We have +15 years experience of Developing custom electronics, Hardware Design, Firmware, App and +5 years experience of 3D Mechanical(3D print, CNC and molds). Our key skills are IoT, Embedded KIT, Digital & Analog, High-speed, Memory, WIFI, GPRS, GPS, RF, BLE... We have designed up to +20 layers PCB. Experience designing high density boards include FPGA, Flash, DDRx, PCIEx, SATA, Ethernet, BLE, WIFI, HDMI, USB, QSFP, LVDS...etc. Also, we provide FAB, ASSEMBLY & TEST services. We can make any prototypes, even support mass production. We use the expertise of the following software: - Allegro/Orcad - Altium. - Eagle - Mentor Pads. - Expedition - Solidworks/ Autocad. We provide Service & Support even after completion of the projects,when ever necessary. Please contact me & we can discuss more. Best Regards, BK Tech
$1,200 USD in 15 days
5.0 (30 reviews)
6.8
6.8
User Avatar
Hi, I hope you are doing well. I have extensive experience in embedded system design and development. I have understood your requirements which are to develop a liquid detector system. I would like to know dimensions of the systems you are looking forward. Price Negotiable. Please send me message for further discussion. Looking Forward, Khawaja
$1,000 USD in 10 days
4.8 (92 reviews)
7.2
7.2
User Avatar
WE ARE A INNOVATION AND DEVELOPMENT COMPANY. WE CAN DEVELOP THIS AND ALSO MAKE PROTOTYPES Hello, I am Anthony from Sri lanka. I have 7 years of experience in the filed and I am very much interested in your project. Why you should hire me ? * As a full time freelancer I have my own PCB fabrication work shop and testing lab. So there is no problem doing live tests with you after the device has been developed. * My workshop is equipped with CNC machine, FDM 3D printer and DLP 3D printer. So there is no problem designing and printing plastic parts you required. Please contact me if you are interested. Thank you Anthony
$333 USD in 10 days
4.7 (80 reviews)
6.8
6.8
User Avatar
hi there i am an electrical engineer. i have 8+ years of related to arduino development and circuit designing. we can design your solution. let us know if you are interested.
$750 USD in 10 days
4.9 (35 reviews)
6.5
6.5
User Avatar
Hi, Can you give more information about your application, so I can give you an extimated price and time frame for development. What kind of liquid do you want to detect? How loud should the audible signal be? How long should the battery lasts? Best regards, Adriano
$555 USD in 10 days
5.0 (20 reviews)
6.2
6.2
User Avatar
Hello, I study electronics at Politecnico di Torino and I can design such thing for you. My main concern is what will be the event of it ? Will it be like water level sensor or will it be like the wiper sensor which its fucntion is only if ther is water or not ? Please give more details I will be glad to help you. Best regards
$616 USD in 10 days
4.7 (57 reviews)
5.7
5.7
User Avatar
Yes buddy,,,how r u, a very easy task to accomplish, u will feel brotherhood,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
$250 USD in 10 days
4.8 (93 reviews)
5.0
5.0
User Avatar
Hi, how are you? I have checked your description carefully. I have rich experienced in electronic device and embedded software development. FPGA, Raspberry pi, pic, arm, dsp, ardunio, bluetooth, ad/da, model, cypress. usb, com, lpt, wifi, c3/4g communication language : vhdl, verilog, asm, python, c, c++, environment: windows, ubuntu, mac, raspbian
$555 USD in 10 days
5.0 (7 reviews)
4.2
4.2
User Avatar
Hello I can design a sensor according to your requirements. Please contact me to tell more details. Like you need humidity sensor or water sensor.
$350 USD in 12 days
4.6 (20 reviews)
4.8
4.8
User Avatar
Hello I have a wide experience in IoT development, low-power devices, RF desgin etc. Will provide perfect service. Thanks
$600 USD in 15 days
3.5 (20 reviews)
6.0
6.0
User Avatar
Hi, hope you are fine. I am a highly-qualified writer, and I can assure you quality work on any topic. You may visit my profile and check all samples to ensure quality, accuracy, and grip over all topics.
$250 USD in 1 day
5.0 (8 reviews)
3.4
3.4
User Avatar
Hi there, I am interested in your project. I have got basic design on my mind but I am not sure what liquid you talking about and how small it should be? mositure sensing unit? or really just liquid? please let me know.
$555 USD in 4 days
5.0 (2 reviews)
3.1
3.1
User Avatar
Sir, I have read your requirements and would like to inform you that i can easily handle your task also i have some sample projects to showcase my work please ping me to start discussion over this.
$555 USD in 10 days
4.1 (21 reviews)
3.4
3.4
User Avatar
I am precise and accurate with the given work. I am also deadline driven and work hard to complete assignments in a timely manner. My dedication attention and organization contribute to my professionalism. I consistently turn in above average projects and am praised for my work. I would be glad if this project is given to me and Surely it will be result oriented. I'm 12+ Years experienced Electronic Engineer having skills in Circuit Design, PCB layouts and especially Process Automation. Instrument Calibration, Instrument Tuning, Industrial Electronics are included in my skills. Currently working as Sr. Burglar Alarm System and R&D Engineer in a security firm. Vast knowledge of ISO Certifications (ISO 9001, 14001 & 18001) as worked as Departmental Coordinator along with technical skills. Preparation of Objective & Targets / Objective Achievement Plans at Departmental Level. Art and nature loving. Explore new ideas and design them. Thanks in advance, Salman Qureshi brainOmind Technologies
$277 USD in 10 days
5.0 (3 reviews)
2.9
2.9
User Avatar
Circuits like the one in its description can be made in very small dimensions for the detection of liquids and self-supplied acoustic warning, also because their consumption in a state of rest is zero, so a very small battery is sufficient. happy to collaborate with her if selected.
$400 USD in 4 days
2.0 (5 reviews)
5.2
5.2
User Avatar
Dear sir, I have a 7+ year experience in schematic design, PCB design and Firmware development. I have a completed many Electronics project please check my portfolio. By looking at your requirement i am interested to with you . Looking forward to your valuable reply. Regards Ravi
$555 USD in 10 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hi i'm Nouman. I am an Electrical Engineer and i am experienced in working on ardunio, micro-controllers and PCB design
$277 USD in 7 days
0.0 (0 reviews)
0.0
0.0
User Avatar
hi, I am an electrical engineer and am working on microcontroller and aurdino. I can do the project as discussed above on the way you want. please hire me for a quality and satisfactory work. thank you
$333 USD in 6 days
0.0 (0 reviews)
0.0
0.0
User Avatar
Hello Dear I have MSc in electrical engineering. i have great experiences with design electrical board. can i ask what is your liquid? best regard
$556 USD in 10 days
0.0 (0 reviews)
2.1
2.1

About the client

Flag of UNITED STATES
United States
0.0
0
Member since Feb 25, 2019

Client Verification

Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.