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circuit schematic, board layout, basic software design needed

$250-750 USD

In Progress
Posted about 10 years ago

$250-750 USD

Paid on delivery
Hi - I need a circuit designed to do the following: Using the Nordic nRFS1822 Bluetooth transceiver with ARM processor, read a type K thermocouple and stream the changing temperature via Bluetooth 4.0. Also display changing temperature on built in LCD screen to one decimal place. Provide space on PCB for 2 micro SPST slide switches. One is to change reading from degrees C to degrees F. The other will be for some other feature TBD. The circuit will roughly consist of: nRFS1822 Bluetooth transeiver/processor PCB mounted antenna Crystal LCD Switch Some other passives IC to perform thermocouple conversion Battery (ideally, something small such as two CR2032 for instance You will also need to write minimal software to enable the unit to read temps and display them on the screen. Bluetooth streaming of the temps in ASCII is needed too. The free LightBlue app in the iTunes store is an easy way to see Bluetooth devices nearby. Please message me with comments. Thanks for looking.
Project ID: 5570615

About the project

9 proposals
Remote project
Active 10 yrs ago

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9 freelancers are bidding on average $1,373 USD for this job
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Hi, I can deliver complete schematic, PCB design + production files + complete code for testing (requested features). Let me know if you are interested in cooperation. Price is higher than estimated budget, but deliverables will be on the highest level. Please let me know if you are interested in cooperation - I can send you portfolio with my past works. Regards, Michal Eliasz
$1,111 USD in 30 days
4.9 (31 reviews)
6.4
6.4
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Dear Hiring Manager, I am a professional electrical engineer and have made more than 150 projects for local and international clients. I have also completed 41 projects with wonderful rating here in freelancer.com. You can have a look at my profile and read the wonderful reviews my clients have posted about me. What I will provide you in this price are enlisted below: 1. Complete code with comments to make it easily understandable 2. Complete Circuit Diagram 3. Software Simulation in Proteus software 4. PCB design 5. Bill of Materials 6. A small 5 pages descriptive report (If you need more, then I charge $10/100 words) 7. Free 15 days support even after the completion of project. Note: I have stopped working on building hardware modules because of the shipping issues (either they are very difficult to depart from the country, or if somehow shipped they get severely damaged during the security checking at airport). However if you say I can build here and show you the video. Price of materials and building hardware isn't included in my bid (the bid only includes the software work). The price will be adjusted after we discuss the details together. Regards, Faraz Ahmad
$1,000 USD in 40 days
4.9 (43 reviews)
5.5
5.5
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You probably mean Nordic nRF51822, not S1822. I can do the job for you. I have experience with bluetooth, and with the Nordic RF ICs. I guess you would want to poll every second (or other interval) the thermocouple and if the temp changes the new temperature is sent via Bluetooth and displayed on the LCD.
$777 USD in 14 days
5.0 (6 reviews)
4.5
4.5
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Hi. I am a professional Electronics Engineer having expertise in PCB designing as well as in Electronic Circuit designing. I have industrial experience in making Temperature monitoring and controlling from thermocouple. I have expertise in Monitoring and controlling of different Industrial parameters like Temperature, Pressure, flow etc through SCADA system wirelessly and with wire communication. I have read your requirements and i am pleased to tell you that i can do this task as per your requirements. Contact me for further details. Price can be negotiable as after discussions. Contact me!
$3,000 USD in 21 days
4.6 (19 reviews)
4.5
4.5
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i can design your project with PCB, schematic some referance code but i dont know how compile IOS app.
$750 USD in 7 days
4.6 (8 reviews)
3.5
3.5
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A proposal has not yet been provided
$1,111 USD in 20 days
5.0 (1 review)
2.1
2.1
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Hi, I am having 2+ years of experience in developing embedded hardware and firmware on the C51 and ARM7 platforms. Have written drivers and interfacing firmware for lot of sensors and readers. I can help you in this project.
$722 USD in 40 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UNITED STATES
New York, United States
5.0
150
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Member since Aug 13, 2003

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