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Design a temperature sensor

$250-750 USD

In Progress
Posted over 10 years ago

$250-750 USD

Paid on delivery
I am looking for a small project to design and manufacture a temperature sensor that is powered via Power over Ethernet. The device would need to operate in cold conditions -10 to 80 degrees Fahrenheit with high humidity levels and provide the ability for an app to poll the device and retrieve the current temperature. There is no need to store more than a day or less worth of readings. The temperature probe can be external if need be and could use a probe that is already available. The device would need to get an IP address via DHCP that existed on the network already and have a very basic interface, but security is not a big concern. Ideally i would like to get a mocked up design that could be tested and then figure out how to get small quantities manufactured (20-30 at a time). The winning bidder on this particular project would provide us all the drawings and design as well as whatever software is needed to run the device and allow us to poll the temperature. The prototype can be built on any type of circuit board (even if it isn't very pretty) but it needs to work. This is my first attempt at this so please pardon my attempt if it isn't perfect. John
Project ID: 4884769

About the project

15 proposals
Remote project
Active 11 yrs ago

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Hi, I have over 30 years experience and all of my work is done in North America by a qualified engineer. I have done similar projects before.
$800 USD in 21 days
0.0 (1 review)
0.0
0.0
15 freelancers are bidding on average $1,145 USD for this job
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We can do this project. See my PM for details
$2,631 USD in 3 days
5.0 (31 reviews)
7.2
7.2
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hi, i am an electrical engineer and an embedded system designer.i have read the details and i can provide you the working prototype and all design files of the system you desire. can also provide small manufacturing run of the product. i have sent you the message in mail box further explaining my bid.
$2,800 USD in 45 days
4.9 (40 reviews)
6.6
6.6
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Hi, Thank you for posting such an interesting job. Please check your inbox for the details. Regards... Roy
$2,500 USD in 30 days
5.0 (19 reviews)
5.4
5.4
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Hello, electronic engineer available please check PMB
$2,222 USD in 40 days
5.0 (3 reviews)
5.1
5.1
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Dear Sir, I'm 15 year experienced Electronics Engineer whose working area is directly related to your project. I have designed several system which is related to your project. I have high level experience about hardware design, analog design, embedded system, microcontroller, power electronics, system simulation, digital motor control. Examples related to your project are attached. It shows my ability to make your project. If you investigate example, you will see that I have strong background similar to your projects. Project lists which I have made until now is attached also. We can determine budget by discussing details of your project. I’m open to work with amount which you can pay. Any questions, you can ask me. The way which will be used to implement is such as: - My profile is below. It shows every issues related to your project. Please evaluate it carefully. If you do it, you will see that I'm ideal candidate who can make your project without any problem. I will wait for being started contract. Regards. Metin 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 hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reader and transmitter -Magnetic reader Power Electronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy simulations -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design Embedded system -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas Matlab -Power Electronics simulation -Motor drive -Wind Energy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation(TI,National, Linear Tech, Maxim libraries) -LTI -National -Matlab Very important Note: References attached. Please look excel file to see projects which we made until now! Metin
$555 USD in 3 days
4.7 (14 reviews)
4.9
4.9
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Hi Check your PMB.
$677 USD in 30 days
4.7 (11 reviews)
4.1
4.1
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Dear Sir, I have gone through the project description and can confidentially claim that I can design this device for you. The design will include all the scope. You will have all the designs with industry standard prototype. Please see the private message for detailed proposal. Thanks; Amit
$666 USD in 15 days
4.4 (10 reviews)
4.2
4.2
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Hi see my PM for detailed proposal.
$360 USD in 7 days
4.9 (14 reviews)
3.8
3.8
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I am ready to start.
$750 USD in 30 days
4.9 (2 reviews)
3.5
3.5
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I am an Expert in Embedded Systems. I can do this task for you,
$450 USD in 15 days
5.0 (2 reviews)
1.6
1.6
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Can do a commendable job for you.
$722 USD in 3 days
0.0 (0 reviews)
2.4
2.4
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Hi there, please read your PM
$833 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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I can do it.
$444 USD in 30 days
0.0 (0 reviews)
2.9
2.9
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I am a designer that has many lines of communication in the manufacturing world, and based in the United States!
$861 USD in 21 days
0.0 (0 reviews)
0.0
0.0
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Hello John, I would like to introduce myself as a young Electronics Engineer. I am energetic and passionate about Electronics. I came across your desire to build design a temperature sensor that is powered via Ethernet. I am very keen on building this sensor for you. I would like to know a few more details about the project. Though I am new to freelancer, I have 3+ years of experience in Embedded Systems. I have worked on Microcontrollers like 8051, ARM, MSP430, AVR. I would love the opportunity to learn more about you. Should you see synergies, would be happy to speak with you at your convenient time. I look forward to hear from you. Thanks & Regards, Sourabh Ghodke Pune, India
$666 USD in 50 days
0.0 (0 reviews)
0.0
0.0
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I can create you a temperature monitor with humidity readings and Dew point all in one neat package. I can make this connect to a DHCP server for an IP address, As well as an NTP server for the time. The source code will be very easy to read and modify if you so choose. Power over ethernet will not be a problem. If you have any questions for me please feel free to message me.
$694 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Hello, I am a Senior R&D engineer and I can offer you POE device 10/100 Mb Eternet with a STM32F207 microcontroller with an embedded web server. I can produce samples of the device and small quantity manufactoring. Best Regards, Milko Rizanov
$1,000 USD in 45 days
0.0 (0 reviews)
0.0
0.0

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VESTAVIA HILLS, United States
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